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Huawei H12-811_V1.0 HCIA-Datacom V1.0 Exam Exam Practice Test

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Total 790 questions

HCIA-Datacom V1.0 Exam Questions and Answers

Question 1

As shown in the figure, a static NAT command is deployed on router R1. When the PC accesses the Internet, the destination address in the data packet will not change. ()(True or False)

Question # 1

Options:

A.

B. False

Question 2

In the network shown in the figure below, switch A and router A are connected by two links, and the two links are aggregated in manual load sharing mode. The aggregated port number is 1, and the aggregated link performs data forwarding It needs to carry VLAN TAG100, and switch A uses trunk link. Which of the following configurations should be used for switch A? ()

Question # 2

Options:

A.

interface Eth-Trunk 1

Port link-type trunk

Port trunk allow-pass vlan 100#

Interface GigabitEthernet0/0/1Eth-trunk 1

#

Interface GigabitEthernet0/0/2Eth-trunk 1

#

B.

interface Vlanif 100

Ip address10.0.12.1255.255.255.0

#

C.

interface Eth-Trunk 1

Ip address10.0.12.1255.255.255.0#

D.

interface Eth-Trunk 1

Mode lacp-static

Port link-type trunk

Port trunk allow-pass vlan 100#

Interface GigabitEthernet0/0/1Eth-trunk 1

#

Interface GigabitEthernet0/0/2Eth-trunk 1

#

Question 3

Two switches use manual link aggregation at the same time. The following statement is wrong. () (Single-choice question)

Question # 3

Options:

A.

Only switch off G0/0/2 port on switch B. The Eth-Trunk status is still UP

B.

Turn off the G0/0/1 and G0/0/2 ports on switch B, and the Efh-Trunk status is still UP

C.

C. Only switch off G0/0/1 port on switch B. The Eth-Trunk status is still UP

D.

D. Turn off the G0/0/1 and G0/0/2 ports on switch B. The Eth-Trunk status is down

Question 4

When the Access type port sends a message, it will ().

Options:

A.

Add the VLAN information of the message, and then send it out

B.

B. Send tagged messages

C.

Strip the VLAN information of the message, and then send it out

D.

Type the PVID. information of this port, and then send it out

Question 5

All the devices in the picture can communicate normally. Is the corresponding relationship between the MAC address table of $WA and the port correct? () (Single-choice question)

Question # 5

Options:

A.

MAC-AG0/0/2

MAC-BG0/0/2

MAC-CG0/0/3

B.

MAC-AG0/0/1

MAC-BG0/0/2

MAC-CG0/0/1

C.

MAC-A--GO/0/1

MAC-B--G0/0/1

MAC-C--GO/0/3

D.

MAC-A--GO/0/1

MAC-B-G0/0/2

MAC-C-GO/0/3

Question 6

Which of the following commands can change the device name to huawei? ()

Options:

A.

Sysname Huawei

B.

C. Rename Huawei

C.

D. Do name Huawei

Question 7

The router running the 0SPF protocol can reach the FULL state after completing the LSDB. synchronization. ()

Options:

A.

True

B.

False

Question 8

When the switch port sends a data frame that carries the same VLANTAG and PVID., it must be stripped of VLANTAG and forwarded. ()

Options:

A.

True

B.

False

Question 9

In the network shown in the figure below, the host has an ARP cache, and host A sends a packet to host B. What are the destination MAC and destination IP of this packet? () (Single-choice question)

Question # 9

Options:

A.

MAC-C,11.0.12.1

B.

B. MAC-B.11.0.12.1

C.

C. MAC-A.11.0.12.1

D.

D. MAC-C.10.0.12.2

Question 10

If the network address of a network is 10.1.1.0/30, what is its broadcast address? ()

Options:

A.

10.1.1.3

B.

C. 10.1.1.4

C.

D. 10.1.1.1

Question 11

Which of the following types of addresses are not included in IPv6 addresses? ()

Options:

A.

Anycast address

B.

Broadcast address

C.

Unicast address

D.

Multicast address

Question 12

Which of the following 0SPF protocol packets can ensure the reliability of LSA update? ()

Options:

A.

LSACK

B.

C. LSR

C.

D. DD

Question 13

If a windows host is started for the first time, if it uses DHCP to obtain an IP address, what is the source IP address of the first packet sent by this host? ()

Options:

A.

0.0.0.0

B.

B. 169.254.2.33

C.

C. 255.255.255.255

D.

D. 127.0.0.1

Question 14

The MAC address table of existing switches is shown in the figure. Which of the following statements are correct? () (Single-choice question)

Question # 14

Options:

A.

Received a data frame with a source MAC address of 5489-9811-0b49 and a destination MAC address of 5489-989d1d30 from the port. Forwarded from the Eth0/0/2 port

B.

The data frame with the source MAC address of 5489-9885-18a8 and the destination MAC address of 5489-989d-1d30 is received from the port. It is forwarded from the Eth0/0/1 port

C.

When the switch restarts, the MAC address learned by port Eth0/0/2 does not need to be relearned

D.

D. When the switch restarts, the MAC address learned by port Eth0/0/2 does not need to be relearned

Question 15

When the router forwards a data packet, if it does not match the corresponding detailed route and there is no default route, it will directly discard the data packet ()

Options:

A.

True

B.

False

Question 16

Two authentication domains "Area1" are configured on a router acting as an authentication server And "AreA.2", If the user uses the correct username'huawei' and password"hello" for authentication. Then which authentication domain will this user be assigned to? ()

Options:

A.

Authentication domain "AreA 1"

B.

Authentication domain "default domain\

Question 17

Which of the following IEEE802.11 standards only supports the 2.4GHz frequency band for communication? ()

Options:

A.

802.11g

B.

C. 802.11ax

C.

D. 802.11n

Question 18

As shown in the figure below. Which port of the following switches will be blocked? () (Single-choice question)

Question # 18

Options:

A.

B.SWA's G0/0/3

B.

C.SWC's G0/0/1

C.

D.G0/0/3 of SWB

Question 19

Which of the following statements about the usage scenarios of the DHCP protocol is correct? ()

Options:

A.

network does not allow multiple DHCP servers

B.

After receiving the DHCP request or response message, the DHCP relay does not modify the message format and forwards it directly

C.

If the DHCP client and the DHCP server are not on the same network segment, the DHCP relay needs to be used to forward DHCP messages

D.

D. DHCP client and DHCP server must be connected to the same switch

Question 20

As shown in the figure below. Host A and Host B cannot communicate. ()(True or False)

Question # 20

Options:

A.

True

B.

False

Question 21

Which of the following are related to the purpose of encapsulation and decapsulation? ()

Options:

A.

Encapsulation and decapsulation can complete network fault location

B.

Encapsulation and decapsulation are important steps to realize the functions of different protocols

C.

Interworking between different networks

D.

D. Shorten the length of the message

Question 22

The two switches shown in the figure below have both enabled the STP protocol, which port will eventually be in the Blocking state? ()

Question # 22

Options:

A.

STB's G0/0/3 port

B.

C. G0/0/2 port of STA

C.

D. G0/0/3 port of STA

Question 23

Which of the following parameters cannot be used for advanced access control lists? ()

Options:

A.

Physical interface

B.

B. time limit

C.

C. Agreement number

D.

D. Destination port number

Question 24

Which field of the Pv6 packet header can be used for Q0s? ()

Options:

A.

B. Next Header

B.

TraffiC Class

C.

D. PayloaD Length

Question 25

On an interface that uses PPP as the data link layer protocol, can you configure a static route by specifying the next hop address or outbound interface? ()

Options:

A.

True

B.

False

Question 26

Which of the following IEEE802.11 standards does not support the 5GHz frequency band for communication? ()

Options:

A.

802.11g

B.

B. 802.11aC.wave 2

C.

C. 802.11aC.wave 1

D.

D. 802.11n

Question 27

Refer to the configuration of the single-arm routing in the figure below, you can judge that even if the ARP proxy is not enabled on the sub-interface of R1,The administrative department and the financial department can also visit each other. ()(True or False)

Question # 27

Options:

A.

True

B.

False

Question 28

Which category does the IPv6 address FE80:2E0:FCFF:FE6F:4F36 belong to? ()

Options:

A.

Link local address

B.

C. Global semicast address

C.

D. Anycast address

Question 29

If the MAC address of an interface is 0OEO-FCEF-OFEC, what is its corresponding EUI-64 address? ()

Options:

A.

02EO-FCFF-FEEF-OFEC

B.

00EO-FCFF-FEEF-OFEC

C.

02EO-FCEF-FFFE-OFEC

Question 30

Which packet type is used by network devices running the SNMPv1 protocol to actively send alarm information? ()

Options:

A.

Trap

B.

B. Response

C.

C. Get Request

D.

D. Get-Next Request

Question 31

The network shown in the figure below. All links are Ethernet links, and all interfaces of all routers run OSPF protocol, how many DRs are elected in the entire network? () (Single-choice question)

Question # 31

Options:

A.

B. 2

B.

4

C.

3

Question 32

When a company's network management needs to plan the network, the data packets that allow PC1 to access PC2 go through the G0/0/0 port (G0/0/2 on the picture). The data packet that PC2 accesses to PC1 goes from port G0/0/4 (G0/0/0 in the picture). () (Single-choice question)

Question # 32

Options:

A.

10.0.12.5255.255.255.25511.0.12.6

#10.0.12.1255.255.255.25511.0.12.1

B.

10.0.12.5255.255.255.25511.0.12.210.

0.12.1255.255.255.25511.0.12.5

C.

0.0.0.00.0.0.00

#11.0.12.6

#11.0.12.1

0

D.

0.0.0.0

#0.0.0.0

0

#11.0.12.2

#11.0.12.5

0

Question 33

Which statement about the 0SPF protocol DR is correct? ()

Options:

A.

DR must be the highest priority device in the network

B.

Router ID, the larger the value, the more preferred it is to be elected as DR

C.

DR election is preemptive

D.

An interface priority is 0, then the interface cannot be a DR

Question 34

The configuration information of a certain port of the switch is shown in the figure. What is the PVID of this port? () (Single-choice question)

Question # 34

Options:

A.

100

B.

2

C.

4

D.

1

Question 35

A DHCP server is deployed on the network, but the administrator finds that some hosts have not correctly obtained the addresses specified by the DHCP server. What are the possible reasons? (Multiple Choice Questions)

Options:

A.

The address pool of the DHCP server has all been allocated

B.

Some hosts cannot communicate with the DHCP server normally, and the client systems of these hosts automatically generate addresses in the range of 169.2540.0

C.

There is another DHCP server that works more efficiently in the network

D.

Some hosts cannot communicate with the DHCP server normally, and the client systems of these hosts automatically generate addresses in the range of 127.254.0.0

Question 36

The router needs to modify the destination IP address in the data packet when forwarding the data packet. ()

Options:

A.

True

B.

False

Question 37

The network shown in the figure below assumes that all routers can enable OSPF at the same time. Which router is the DR in this network? () (Single-choice question)

Question # 37

Options:

A.

Router B

B.

B. Router D

C.

C. Router A

D.

D. Router C

Question 38

When the router is powered on, it will read the configuration file from the default storage path to initialize the router. If there is no configuration file in the default storage path, what will the router use for initialization? ()

Options:

A.

Initial configuration

B.

Current configuration

C.

New configuration

D.

Default parameter

Question 39

The network shown in the figure below. The network where host A is required to access the Internet through Easy IP, then which of the following ACLs should be used on the G0/0/3 interface of router A? () (Single-choice question)

Question # 39

Options:

A.

acl number 2000 Rule 5 permit source 10.0.12.0.0.0.0.255#

B.

acl number 2000 Rule 5 permit source 10.0.13.0.0.0.0.255#

C.

acl number 2000 Rule 5 permit source 10.0.12.1.0.0.0.0#

D.

D. acl number 2000 Rule 5 permit source 10.0.13.1.0.0.0.0

Question 40

When the IPv4 protocol is used as the network layer protocol, which field is not included in the network layer header? ()

Options:

A.

Sequence number

B.

C. Destination IPv4 address

C.

D. TTL

Question 41

As shown in the figure, the G0/0/0 and G0/0/1 interfaces of RTA are connected to two different network segments. RTA is the gateway of these two networks. Before host A sends data to host C, will it send an ARP Request to obtain O's MAC address? () (Single-choice question)

Question # 41

Options:

A.

SW

B.

Host C

C.

G0/0/1 interface of RTA

D.

G0/0/0 interface of RTA

Question 42

In the network shown in the figure below, the switch uses VLANIF interfaces to connect with the router sub-interfaces. Which of the following configurations can achieve this requirement? () (Single-choice question)

Question # 42

Options:

A.

interface Vlanif10

Ip address10.0.12.1255.255.255.0

#

Interface GigabitEthernet 0/0/2

Port link-type trunk

Port trunk pvid 10

Port trunk allow-pass vlan 10

#

B.

interface Vlanif10

Ip address10.0.12.1255.255.255.0#

Interface GigabitEthernet 0/0/2

Port link-type trunk

Port trunk allow-pass vlan 10#

C.

interface Vlanif10

Ip address10.0.12.1255.255.255.0#

Interface GigabitEthernet 0/0/267

Port link-type hybrid

Port hybrid untag vlan 10

#

D.

interface Vlanif10

Ip address10.0.12.1255.255.255.0#

Interface GigabitEthernet 0/0/2

Port link-type access

Port default vlan 10

Question 43

What is the destination IP address of the DHCP DISCOER message? ()

Options:

A.

127.0.0.1

B.

224.0.0.1

C.

224.0.0.2

D.

255.255.255.255

Question 44

The following two configuration commands can realize the master and backup backup of the router RIA to the same destination 10.1.1.0.

Question # 44

Options:

A.

True

B.

False

Question 45

By default, the bridge priority of Huawei switches is 32768 ()

Options:

A.

True

B.

False

Question 46

In the VRP interface, use the command startup saved-confi guration backup.cfg. Configure the backup.cfg file to be used at the next startup. ()

Options:

A.

True

B.

False

Question 47

The Layer 2 Ethernet switch generates entries in the MAC address table according to the () of the Ethernet frame received by the port. ()

Options:

A.

Source MAC. Address

B.

C. Destination MAC. Address

C.

D. Destination IP address

Question 48

What is the number range of the Layer 2 ACL? ()

Options:

A.

B. 3000-3999

B.

4000~4999

C.

D. 6000~6031

Question 49

The network shown in the figure below. Which router is the BDR in this network? () (Single-choice question)

Question # 49

Options:

A.

B. Router B

B.

No BDR

C.

D. Router C

Question 50

The network is shown in the figure. Which router is the BDR in this network? () (Single-choice question)

Question # 50

Options:

A.

B. No BDR

B.

C. Router C

C.

D. Router A

Question 51

"The network administrator created VLAN 10 on the Layer 3 switch and configured an IP address under the virtual interface of the VLAN. When using the command "display ip interface brief to view the port status, and found that the VLANIF10 interface is in the dow state, what should be done? Operation to restore the VLANIF10 interface to normal? ()

Options:

A.

Assign an interface that must be Up and must be of type Trunk into VLAN 10

B.

Assign any physical interface to VLAN10

C.

Assign a physical interface that must be Up to VLAN 10

D.

Use the command "undo shutdown" under the VLANIF10 interface

Question 52

Which of the following attributes cannot be used as a parameter to measure C0st? ()

Options:

A.

B. Hop count

B.

sysname

C.

D. bandwidth

Question 53

What kind of packets does the OSPF protocol use to send LSAs to neighbors? ()

Options:

A.

LSU

B.

B. LSACK

C.

C. LSR

D.

D. LSA

Question 54

Which information of the data frame is used by the interface to determine whether to forward Layer 2 or Layer 3 forwarding? ()

Options:

A.

Source IP

B.

Source MAC

C.

Destination port

D.

Destination MAC

Question 55

Which of the following commands configures the authentication mode as HWTACACS authentication? ()

Options:

A.

B. authentication-mode local

B.

authentication-mode hwtacacs

C.

D. authorization mode hwtacacs

Question 56

AAA. Which of the following is not included? ()

Options:

A.

Authentication

B.

Accounting

C.

Authorization

D.

Audit

Question 57

What identifies the coverage area of ​​an AP in a WLAN? ()

Options:

A.

B. SSID

B.

BSSID

C.

D. ESS

Question 58

As shown in the figure. If host A has the ARp cache table of host B, then host A can ping host B. ()(True or False)

Question # 58

Options:

A.

True

B.

False

Question 59

Which of the following parameters is used to elect the root bridge in STP?

Options:

A.

Bridge ID

B.

Port ID

C.

Root path cost

D.

System name of the switch

Question 60

A company applies for a class C IP address for subnetting. It has six branches and the largest branch should have 26 hosts. What would be an appropriate subnet mask for the largest branch?

Options:

A.

255.255.255.0

B.

255.255.255.128

C.

255.255.255.192

D.

255.255.255.224

Question 61

What is the role of link aggregation? ()*

Options:

A.

Improve network reliability

B.

Increase bandwidth

C.

Facilitate analysis of data

D.

Achieve load sharing

Question 62

The router ID of the OSPF process takes effect immediately after being changed.

Options:

A.

TRUE

B.

FALSE

Question 63

Network administrators use Ping to test the connectivity of the network. Which of the following protocols may be used in this process? ()

Options:

A.

ICMP

B.

UDP

C.

TCP

D.

ARP

Question 64

In order to realize the network layer function on the VLANIIF interface, need to be configured on the VLANIF interface? ()*

Options:

A.

Subnet mask

B.

MAC.Address

C.

IP prefix

D.

IP address

Question 65

The network is shown in the figure below. The following statementcorrectIs there? () (Multiple Choice Questions)

Question # 65

Options:

A.

Host A and Host c can ping through

B.

B. All hosts can ping each other

C.

Host B and Host C can ping through

D.

Host A and Host B cannot ping through

Question 66

What command line views exist on the VRP operating platform? ()*

Options:

A.

User view

B.

Interface view

C.

Agreement view

D.

System view

Question 67

The users who log on the router through Telnet are not permitted to configure an IP address. What is the possible reason?

Options:

A.

Privilege level of Telnet is set incorrectly.

B.

SNMP parameters are set incorrectly.

C.

The authentication mode of Telnet is set incorrectly.

D.

Communication failures occur between the user and the router.

Question 68

SDN requires the control and forwarding planes to be separated.

Options:

A.

TRUE

B.

FALSE

Question 69

Which of the following is not a type of OSPF LSA?

Options:

A.

LSA

B.

LSU

C.

LSR

D.

LSACK

Question 70

Which of the following methods is not used for logging in to the VRP system?

Options:

A.

Telnet

B.

Netstream

C.

Web

D.

SSH

Question 71

Assume that an OSPF-enabled router has no loopback interface configured. What would be used as the router ID?

Options:

A.

The preference of the router

B.

The smallest IP address of a physical interface on the router (if configured)

C.

The IP address of the router's management interface (if configured)

D.

The biggest IP address of a physical interface on the router (if configured)

Question 72

Which SNMP version focuses on two main aspects, namely security and administration? The security aspect is addressed by offering both strong authentication and data encryption for privacy. The administration aspect is focused on two parts, namely notification originators and proxy forwarders.

Options:

A.

SNMPv2

B.

SNMPv2c

C.

SNMPv3

D.

SNMPv1

Question 73

As specified by the RSTP protocol, when a root port fails, which type of port will function as a new root port and enter the forwarding state without any delay?

Options:

A.

Alternate Port

B.

Forwarding Port

C.

Backup Port

D.

Edge Port

Question 74

Which of the following packets is used by OSPF to describe its link state database (LSDB)?

Options:

A.

LSR

B.

DD

C.

LSU

D.

HELLO

Question 75

How to enter in the vP operating system OView of SPF area 0? ()*

Options:

A.

(Huawei-ospf-1) areA.0 enabel

B.

(Huawei-ospf-1) areA.0

C.

(Huawei) ospf areA.0

D.

(Huawei-ospf-1) areA.0.0.0.0

Question 76

O: 72

What is the protocol number of OSPF at the network layer?

Options:

A.

0

B.

89

C.

6

D.

1

Question 77

Which of the following functions does the LCP protocol in the PPP protocol support? ()*

Options:

A.

Negotiate network layer address

B.

Negotiate authentication agreement

C.

Detect link loop

D.

Negotiated maximum receiving unit MRU

Question 78

Through sR (Segment Routing), an explicit path can be easily defined. The nodes in the network only need to maintain the SegmentRouting information to cope with the real-time and rapid development of the business. What are the following characteristics of Segment Routing?

Options:

A.

Extending the existing protocol (eg IGP) can make the existing network better and smoothly evolve

B.

SR (Segment Routing) adopts IP forwarding, no extra dimensioning is required-a label forwarding table

C.

Source routing technology is used to provide the ability to quickly exchange text between the network and upper-layer applications

D.

At the same time, it supports the centralized control mode of the controller and the distributed control mode of the transponder, providing a balance between centralized control and distributed control

Question 79

VLANs can be assigned based on service types during campus network planning.

Options:

A.

TRUE

B.

FALSE

Question 80

Which of the following is not included in the routing table?

Options:

A.

MAC

B.

Next-hop address

C.

Cost

D.

Destination/Mask

Question 81

In the STP protocol, which of the following factors will affect the election of the root switch? ()*

Options:

A.

MAC address of the switch

B.

IP address of the switch

C.

Switch priority

D.

Switch interface bandwidth

E.

Switch interface ID

Question 82

Which of the following working modes are supported by Huawei enterprise APs? ()*

Options:

A.

Local

B.

Cloud

C.

FIT

D.

FAT

Question 83

Virtualization is the basis for implementing NEV. Which of the following statements about the characteristics of virtualization is correct? ()*

Options:

A.

Hardware independence: Virtual machines and hardware are decoupled, and virtual machines can be migrated between servers.

B.

Encapsulation: All virtual machines share the operating system, and encapsulation is achieved through namespaces.

C.

Isolation, where virtual machines on the same physical server are isolated from each other.

D.

Partitioning: Multiple virtual machines can be run on a single physical server at the same time.

Question 84

Which of the following descriptions about OSPF's DD. packets and LSA. is correct ()*

Options:

A.

The header of an LSA can uniquely identify an LSA

B.

The LSA header is only a small part of the LSA

C.

The DD packet contains the detailed information of the LSA

D.

DD packets only contain the header information of LSA

Question 85

An authenticator router has been configured with two domains named "Area1" and "Area2", following which a user is created with the username "huawei" and the password "hello" for authentication. Which domain does this user belong to?

Options:

A.

Area2 domain

B.

default_admin domain

C.

Area1 domain

D.

default domain

Question 86

The network is shown in the figure below. The router uses a sub-interface as the host gateway. The gateway IP address is 10.0.12.2. Which of the following commands can achieve this requirement? () (Multiple Choice Questions)

Question # 86

Options:

A.

interface GigabitEthernet0/0/0.20Dotlg termination vid 10

Ip address10.0.12.2255.255.255.0Arp broadcast enable

B.

interface GigabitEthernet0/0/0.10Dotlq termination vid 10

Ip address10.0.12.2255.255.255.0 Arp broadcast enable #

C.

interface GigabitEthernet0/0/0.20Dotlq termination vid 20

Ip address10.0.12.2255.255.255.0Arp broadcast enable #

D.

interface GigabitEtherneto/0/0.10Dotlq termination vid 20

Ip address10.0.12.2255.255.255.0Arp broadcast enable

Question 87

Which of the following fields does the ARP packet format contain? ()*

Options:

A.

HardwareType

B.

Protocol Address of sender

C.

Operation Code

D.

Protocol Type

Question 88

VLAN 4095 is reserved for system use and VLAN 1 cannot be deleted on Huawei switches.

Options:

A.

TRUE

B.

FALSE

Question 89

Which of the following statements are true about the dynamic MAC address table?

Options:

A.

Dynamic MAC address entries are obtained by learning the source MAC addresses of packets received by an interface and can be aged out.

B.

After a device is reset, an interface card is hot-swapped, or an interface card is reset, dynamic MAC address entries on the device or interface card are lost.

C.

You can obtain the number of users communicating on an interface by checking the number of specified dynamic MAC address entries.

D.

After a device is reset, an interface card is hot-swapped, or an interface card is reset, the saved entries on the device or interface card are not lost.

Question 90

In STP, which of the following items may affect the selection of the root switch?

Options:

A.

Switch interface bandwidth

B.

Switch priority

C.

Switch MAC address

D.

Switch port ID

E.

Switch IP address

Question 91

When both ends running PPP protocol detect that the physical link is active, the link state will transit from dead to establish. Which of the following protocols is used to negotiate the link parameters during this phase?

Options:

A.

IP

B.

NCP

C.

LCP

D.

DHCP

Question 92

Which of the following statements about IPv6 address configuration are correct? ()*

Options:

A.

IPv6 supports stateless automatic configuration

B.

IPv6 address supports automatic configuration in multiple ways

C.

IPv6 supports DHCPv6 for address configuration

D.

IPv6 addresses can only be configured manually

Question 93

Which of the following statements about encapsulation and decapsulation are true?

Options:

A.

Encapsulation and decapsulation can locate network faults.

B.

Encapsulation and decapsulation shorten the packet length.

C.

Encapsulation and decapsulation participate in achieving different network protocol functions.

D.

Encapsulation and decapsulation can implement network communication.

Question 94

Which of the following network parameters can be assigned by Dynamic Host Configuration Protocol DHCP? ()*

Options:

A.

IP address

B.

Gateway address

C.

Operating system name

D.

DNS address

Question 95

A network administrator wishes to assign an IP address to a router interface G0/0/0. Which of the following IP addresses can be assigned?

Options:

A.

237.6.1.2/24

B.

127.3.1.4/28

C.

145.4.2.55/26

D.

192.168.10.112/30

Question 96

When an Ethernet frame is received by an interface on a Layer 2 Ethernet switch, which field is used to generate an entry in the MAC address table?

Options:

A.

Destination MAC address

B.

Source MAC address

C.

Source IP address

D.

Destination IP address

Question 97

When the LCP phase of PPP is negotiated, the content of the negotiation includes ()*

Options:

A.

MRU

B.

Authentication protocol

C.

Magic word

D.

IP address

Question 98

Link aggregation is a common technology in enterprise networks. Which of the following descriptions are the advantages of link aggregation technology? ()*

Options:

A.

Improve safety

B.

Improve reliability

C.

Achieve load sharing

D.

Increase bandwidth

Question 99

As shown in the figure, all switches run STP. Assume that the path cost of all ports is 200. What is the root path cost contained in the configuration BPDU received by G0/0/4 on SWD?

Question # 99

Options:

A.

0

B.

400

C.

200

D.

600

Question 100

If the network administrator assigns the IPv4 address 192.168.1.1/28 to a host on the network, how many hosts can be added to the network where the host resides?

Options:

A.

13

B.

15

C.

14

D.

12

Question 101

Which NAT can convert multiple private network addresses into one public network address to access the public network at the same time

Options:

A.

Static NAT

B.

Dynamic NAT

C.

NAPT

D.

Easy IP

Question 102

What packet types are included in DHCP?

Options:

A.

DHCP Discover packet

B.

DHCP Request packet

C.

DHCP Rollover packet

D.

DHCP Offer packet

Question 103

How to add AP on AC.? ()*

Options:

A.

Add online

B.

Automatically discover AP

C.

Import AP offline

D.

Manually confirm APs in the non-certified list

Question 104

Refer to the following configuration of an interface on a switch. For which VLAN does the interface transmit tagged data frames?

interface GigabitEthernet0/0/1

port hybrid tagged vlan 2 to 3 100

port hybrid untagged vlan 4 6

Options:

A.

2, 3, 4, 6, 100

B.

2, 3, 100

C.

1, 2, 3, 4, 6, 100

D.

1, 2, 3, 100

Question 105

telnetlib is a module provided by Python to implement the Telnet protocol.

Options:

A.

TRUE

B.

FALSE

Question 106

Compared with STP, which of the following port roles are newly defined in RSTP? ()*

Options:

A.

Designated port

B.

Root port

C.

Alternate port

D.

Backup port

Question 107

ForwardD.Delay exists when an STP port transitions between which of the following states?

Options:

A.

Forwarding-Di sableD.Learning-Forwarding

B.

Learning-Forwarding

C.

Disabled-Blocking

D.

Blocking-Listening

E.

Listening-Learning

Question 108

In an OSPF broadcast network, with which routers does a Dothter router exchange link state information? ( )

Options:

A.

BDR

B.

All OSPF neighbors

C.

DR Other

D.

DR

Question 109

Which fields in the IPv4 header are related to fragmentation? ()*

Options:

A.

TTL

B.

Fragment Offset

C.

Identification

D.

Flags

Question 110

What are the network types supported by the OSPF protocol? ()*

Options:

A.

Point-to-Point

B.

Non-Broadcast Multi-Access

C.

Point-to-Multipoint

D.

Broadcast

Question 111

The routing table is generated by*

Options:

A.

Direct connection

B.

Static

C.

OSPF

D.

ISIS

Question 112

Which of the following options describes the concept of NFV architecture correct?

Options:

A.

MANO is composed of NFVO, VNFM and VIM

B.

NFVO (NFV Orchestrator). Responsible for business orchestration.

C.

VIM (VirtualiseD.Infrastructure Manager) virtual resource management is responsible for the virtualization of infrastructure.

D.

VNFM. Virtual network function management, responsible for the life cycle management of VNF.

Question 113

Which of the following fields are present in both IPv6 and IPv4 packet headers? ()*

Options:

A.

Next Header

B.

Destination Address

C.

Version

D.

Source Address

Question 114

Which of the following attributes cannot be used as a measure of CoThe parameter of st? ()*

Options:

A.

bandwidth

B.

Sysname

C.

Time delay

D.

Hop count

Question 115

Refer to the graphic, which of the following statements is true about OSPF topology and configuration?

Question # 115

Options:

A.

Compared with R1, R2 is more likely to become the DR because the DR priority of the interface on R2 is lower than that of R1.

B.

After the default network type of the interface on R1 is restored to broadcast, a stable OSPF neighbor relationship can be set up between R1 and R2.

C.

After the default network type of the interface on R1 is restored to broadcast and the hello packet sending interval is changed to 10s, a stable OSPF neighbor relationship can be set up between R1 and R2.

D.

A stable OSPF neighbor relationship can be set up between R1 and R2.

Question 116

Which of the following statements about the default route are correct?

Options:

A.

If the destination address of the message cannot match any other routing entries in the routing table, the router will forward the message according to the default route

B.

The default route can only be manually configured by the administrator

C.

There must be a default route in the routing table of any router

D.

In the routing table, the default route appears in the form of a route to the network 0.0.0.0 (the mask is also 0.0.0.0)

Question 117

Which statement about OSPF area division is wrong? ( )

Options:

A.

AreA.0 is the backbone area. All other areas must be connected to this area

B.

The LSDBs in the routers in the same OSPF area are exactly the same

C.

Dividing OSPF areas can reduce the size of the LSDB of some routers

D.

Only ABR can be used as ASBR

Question 118

To provide different network services for different users on the AP, which of the following can be configured?

Options:

A.

TAP

B.

VAP

C.

VAC

D.

VT

Question 119

When two OSPF routers form a 2TAY neighbor relationship, LSDB. has been synchronized.

Options:

A.

True

B.

False

Question 120

When the device running STP receives the RSTP configuration BPDU, it will discard it. ()

Options:

A.

True

B.

False

Question 121

What is the main function of the DHCP DISCOVER message? ()

Options:

A.

The server's confirmation response to the REQUEST message

B.

Used by the client to find the DHCP server

C.

The client requests configuration confirmation, or renews the lease

D.

The DHCP server is used to respond to the DHCP DISCOVER message, which carries various configuration information

Question 122

Which of the following messages does the AP use to request the software version from AC.? ()

Options:

A.

VRP System Request

B.

Software Request

C.

Image DatA.Request

D.

Image package Request

Question 123

By default, what is the RouterDeadInterval of the ospf protocol on the broadcast network? ()

Options:

A.

20s

B.

40s

C.

10s

D.

30s

Question 124

When adopting LACP mode for link aggregation, what is the default system interference level of Huawei switches? ()

Options:

A.

36864

B.

4096

C.

24576

D.

32768

Question 125

UDP is oriented to connectionless and must rely on () to ensure the reliability of transmission. ()

Options:

A.

Internet Protocol

B.

Transmission Control Protocol

C.

Application layer protocol

D.

Network layer protocol

Question 126

Which of the following descriptions about firewalls is wrong? ()

Options:

A.

Firewall can realize user identity authentication

B.

Firewall can realize access control between different networks

C.

The firewall can isolate the network of unreachable security level

D.

The firewall cannot implement network address translation

Question 127

Which of the following is not the reason why RSTP can increase the speed of convergence? ()

Options:

A.

The introduction of edge ports

B.

Fast switching of the root port

C.

P/A mechanism

D.

Forward.delay cancelled

Question 128

The load sharing mode at both ends of the Eth-Trunk can be inconsistent ()

Options:

A.

True

B.

False

Question 129

What is the value of the Type field in the RStp configuration BPDU message? ()

Options:

A.

0x01

B.

0x00

C.

0x02

D.

0x03

Question 130

Broadcast network. OSPF runs on four routers in the same area. Same network segment. OSPF will automatically elect one DR and multiple BDRs to achieve better backup results

Options:

A.

True

B.

False

Question 131

The configuration information of a certain port of the switch is shown in the figure. Then, when the data frame of which VLAN is sent by this port, it carries the VLAN TAG? ()interface GigabitEtherneto/0/1 port hybriD.taggeD.vlan 2 to 3 100 port hybriD. untaggeD. vlan 4 6#

Options:

A.

1, 2.3, 100

B.

2, 3, 100

C.

1, 2, 3, 4.6, 100

D.

2.3, 4, 6, 100

Question 132

The basic header length of IPv6 packets is a fixed value ()

Options:

A.

True

B.

False

Question 133

When a switch receives a unicast data frame with a VLAN tag, but finds that the destination MAC address of the data frame cannot be queried in its MAC address table, the switch's processing behavior for the data frame is ().

Options:

A.

The switch will broadcast this data frame to all ports (except the receiving port) in the VLAN where the data frame is located

B.

The switch will broadcast the data frame to all ports

C.

The switch will discard this data frame

D.

The switch will broadcast this data frame to all Access ports

Question 134

If the application layer protocol is Te1net, then the value of the Protoco1 field in the IPv4 header? ()

Options:

A.

23

B.

17

C.

6

D.

67

Question 135

As shown in the figure below, assuming that the MAC address table of SWA. is as follows, now host A. sends a data frame with a destination MAC address of MAC-B. Which of the following statements is correct? ()

Question # 135

Options:

A.

Forward this data according to the G0/0/2 port

B.

SWA. Discard the data frame

C.

D. Forward this data frame from port G0/0/3

Question 136

NAPT allows multiple private IP addresses to be mapped to the same public P address through different port numbers. The following description of the port number in NAPT is correct ().

Options:

A.

The correspondence between port numbers and private addresses must be manually configured

B.

No need to do any configuration about port number

C.

Only need to configure the range of port numbers

D.

Need to use ACL to assign port numbers

Question 137

On Huawei equipment, if AAA authentication is used for authorization, when the remote server does not respond, authorization can be performed from the network equipment side ()

Options:

A.

True

B.

False

Question 138

Management Information Base (MIB) Information Base) is a virtual database, which only exists on the NMS. ()

Options:

A.

True

B.

False

Question 139

Which of the following information is not included in the MAC address table of the switch? ()

Options:

A.

B. MAC.Address

B.

IP address

C.

D. VLAN

Question 140

SNMP messages are carried over UDP.

Options:

A.

True

B.

False

Question 141

What is the range of VLAN ID that users can use? ()

Options:

A.

1-4096

B.

1-4094

C.

0-4096

D.

0-4095

Question 142

The RSTP protocol uses the P/A mechanism to speed up the upstream port's transition to the Forwarding state, but what is the reason for no temporary loop? ()

Options:

A.

Speed ​​up port role election

B.

Ensure that there will be no temporary loops through the synchronization mechanism

C.

Edge port

D.

Reduced the time of ForwarD.Delay

Question 143

What is the length of the Ethernet II frame containing the Ethernet header?

Options:

A.

64-1518B

B.

60-1560B

C.

46-1500B

D.

64-1500B

Question 144

The output information of a router's routing table is shown in the figure. Which of the following statements is correct? () (Multiple Choice Questions)

Question # 144

Options:

A.

The outbound interface of this router to 10.0.0.1 is Ethernet0/0/1

B.

The outgoing interface of this router to 10.0.0.1 is Ethernet0/0/0

C.

C. The outgoing interface of this router to 10.0.2.2 is Ethernet0/0/0

D.

The outbound interface of this router to 10.0.2.2 is Ethernet0/0/1

Question 145

The link aggregation interface can only be used as a Layer 2 interface (C)

Options:

A.

True

B.

False

Question 146

After link authentication is completed, STA. will continue to initiate link service negotiation. Which of the following messages will be used to achieve the specific negotiation? ()

Options:

A.

Join

B.

Handshake

C.

Association

D.

Negotiate

Question 147

The administrator plans to implement route backup by configuring static floating routes, the correct way to achieve this is ().

Options:

A.

The administrator needs to configure different protocol priority values ​​for the main static route and the standby static route

B.

B. The administrator only needs to configure two static routes

C.

The administrator needs to configure different metric values ​​for the main static route and the standby static route. The administrator only needs to configure two static routes

D.

D. The administrator only needs to configure two static routes

Question 148

The RSTP protocol uses the P/A mechanism to speed up the speed of the upstream port to the F orwarding state, but what is the reason for the no temporary loop? . Shorten the time of ForwarD.Del ay

Options:

A.

Shorten the time of ForwarD.Del ay

B.

Edge port

C.

Speed ​​up port role election

D.

Ensure that there will be no temporary loops through the synchronization mechanism

Question 149

Which of the following statements about Adjacency Segment is wrong? ()

Options:

A.

Adjacency Segment is identified by Adjacency Segment ID. (SID)

B.

Adjacency Segment spreads to other network elements through the IGP protocol, which is visible globally and valid locally

C.

Adjacency Segment must be configured manually

D.

Adjacency Segment is used to identify an adjacency of a node in the network

Question 150

Now you need to implement a Python automation script Telnet to the device to view the running configuration of the device. What is wrong with the following statement? ()

Options:

A.

TelnetliB. can achieve this function.

B.

Use telnet.Telnet (host) to connect to the Telnet server.

C.

You can use telnet.write (b\) to input the command to view the current configuration of the device.

D.

Telnet.close() is used every time a command is entered, and the function is that the user waits for the switch to return information. ·

Question 151

The display startup information of the AR2200 router. Regarding these information, the statement is wrong ()

Options:

A.

The system file at the next startup of the device can be modified with the command "startup system software"

B.

The running configuration file is not saved

C.

The system file used for this startup of the device is ar2220-v200r003c00spc00.cc

D.

The system file cannot be modified when the device is started next time

Question 152

In the campus network, the reliability of the network can be improved by using link aggregation and stacking technology. ()

Options:

A.

True

B.

False

Question 153

Which of the following interfaces are not open to Huawei controllers?

Options:

A.

NETCONF

B.

RESTful

C.

AAA

D.

OpenFlow

Question 154

In the network shown in the figure, which of the following descriptions is correct? () (Multiple Choice Questions)

Question # 154

Options:

A.

The network between RTA and SWC is the same conflict domain

B.

The network between SWA and SWB is the same broadcast domain

C.

The network between SWA and SWC is the same conflict domain

D.

The network between SWA and SWC is the same broadcast domain

Question 155

Does the WEP security policy support the use of TKIP for data encryption?

Options:

A.

True

B.

False

Question 156

Which of the following statements about direct routing is correct? ()

Options:

A.

Direct routing requires the administrator to manually configure the destination network and next hop address

B.

Direct routes have lower priority than static routes

C.

Direct routing has lower priority than dynamic routing

D.

Direct routing has the highest priority

Question 157

The following statement about static routing in Huawei equipment is wrong ().

Options:

A.

The cost value (Cost) of a static route cannot be modified.

B.

The default value of the static route priority is 60

C.

The range of static route priority value is 1-255

D.

When the priority of a static route is 0, the route will definitely be preferred.

Question 158

The mask length is 12 bits can be expressed as?

Options:

A.

255.240.0.0

B.

255.248.0.0

C.

255.255.0.0

D.

255.255.255.0

Question 159

The following figure shows the routing table of a router. When the router receives a data packet with a destination IP address of 9.LL, the router will forward it according to the route of 91.0.016 because the mask length of this route is longer. ()

Question # 159

Options:

A.

True

B.

False

Question 160

Which bridge is in the configuration BPDU sent by the switchID. Impossible to appear?

Options:

A.

204800-01-02-03-04CC

B.

819200-01-02-03-04-CC

C.

000-01-02-03-04cc

D.

409600-01-02-03-04-CC

Question 161

When two OSPF routers form a 2-WAY neighbor relationship, LSDB. has been synchronized. ()

Options:

A.

True

B.

False

Question 162

The IPv4 address assigned by the network administrator to a host in the network is 192.168.128, how many more hosts can be added to the network where this host is located? ()

Options:

A.

12

B.

15

C.

13

D.

14

Question 163

Which of the following address types does IPV6 have?

Options:

A.

Link local address

B.

C. Multicast address

C.

D. Unicast address

D.

E. Broadcast address

Question 164

Which of the following IPv6 addresses is a multicast address? ()

Options:

A.

FE80:2EO:FCFF:FEEF:FEC

B.

FC0O:2EO:FCFF:FEEF:FEC

C.

FF02::2EO:FCFF:FEEF:FEC

D.

2000::2EO:FCFF:FEEF:FEC

Question 165

What kind of network equipment can host A and host B use to achieve communication?

Options:

A.

router

B.

Hub

C.

HUB

D.

Layer 2 switch

Question 166

By default, in the SNMP protocol, which port number does the agent process use to send alarm messages to N? ()

Options:

A.

164

B.

163

C.

162

D.

161

Question 167

All interfaces of routers running 0SPF protocol must belong to the same area. ()

Options:

A.

True

B.

False

Question 168

If the Length/Type of an Ethernet data frame is 0x8100. Which of the following statements is correct?

Options:

A.

There is always a UDP header in the upper layer of each data frame

B.

The upper layer of a data frame must exist IP header

C.

There is always a TCP header in the upper layer of each data frame

D.

Each data frame must carry VLAN TAG

Question 169

NFV (Network Functional Virtualization), network function virtualization, realizes the deployment of network applications in a software-based way. ()

Options:

A.

True

B.

False

Question 170

RTA. Uses NAT technology and realizes many-to-many NAPT address translation by defining an address pool, so that hosts in the private network can access the public network. Assuming that there are only two public network P addresses in the address pool, and they have been assigned to hosts A and B for address conversion, and at this time, if the host also wants to access the public network, the following description is correct ().

Options:

A.

HostC.Unable to assign a public network address, and cannot access the public network

B.

All hosts can access the public network by using the public network address in turn

C.

RTA. Convert the source port of host C., the host can access the public network

D.

RTA. Assign interface address (200.10.10.3) to host C. Host C can access the public network

Question 171

What kind of packets does the OSPF protocol use to request LSAs that are missing locally? ()

Options:

A.

B. LSACK

B.

LSR

C.

D. LSU

Question 172

Which parameter is used in the spanning tree protocol for root bridge election? ()

Options:

A.

Port ID

B.

Bridge priority

C.

Root path cost

D.

Bridge ID

Question 173

The following description of the Layer 2 Ethernet switch is incorrect ().

Options:

A.

Need to make certain modifications to the layer 3 header of the forwarded message, and then forward it

B.

Able to learn MAC. Address

C.

Forward according to the Layer 2 header information of the Ethernet frame

D.

Layer 2 Ethernet switch works at the data link layer

Question 174

Which of the following descriptions about Trunk port and Access port are correct ()

Options:

A.

Trunk port can only send untagged frames

B.

The Access port can only send untagged.

C.

Access port can only send tagged frames

D.

Trunk port can only send tagged frame

Question 175

Which of the following descriptions regarding the TTL field of the IP packet is correct?

Options:

A.

The TTL value will decrement by 1 each time the packet is routed.

B.

The TTL defines the duration during which the source can send packets.

C.

The TTL defines how many packets the source can send.

D.

The TTL value will increment by 1 each time the packet is routed.

Question 176

Which of the following sources of routes can be obtained by a router?

Options:

A.

Static routes

B.

Direct routes

C.

Summary routes

D.

Dynamic routes

Question 177

The tree topology is a hierarchical star topology, facilitating network expansion. A consequence of this topology is that faults on a node at a higher layer are more severe.

Options:

A.

TRUE

B.

FALSE

Question 178

Refer to the following configuration of a switch interface. Which of the following statements is false?

interface GigabitEthernet0/0/1

port link-type trunk

port trunk pvid vlan 200

port trunk allow-pass vlan 100

Options:

A.

If the VLAN tag carried in a data frame is 100, the switch removes the VLAN tag before sending the data frame.

B.

If the interface receives data frames without VLAN tags, the switch needs to tag the data frames with VLAN 200.

C.

The interface cannot send data frames tagged with VLAN 200.

D.

The link type of the interface is trunk.

Question 179

The rules in an ACL may overlap. If packets match the rules with loose conditions, the later ACL rules are not processed. In this case, packets cannot match the rules with strict conditions. Therefore, the rules with strict conditions must be arranged in front lines and those with loose conditions must be arranged towards the end.

Options:

A.

TRUE

B.

FALSE

Question 180

Which of the following states indicates that the OSPF neighbor relationship has been established?

Options:

A.

Attempt

B.

Down

C.

Full

D.

2-way

Question 181

Which of the following commands is used to configure the country code on an AC?

Options:

A.

country-code

B.

province-code

C.

nation-code

D.

state-code

Question 182

In a broadcast address, all host bits are set to 1, and a broadcast address can be used as a host address.

Options:

A.

TRUE

B.

FALSE

Question 183

Which of the following packets are exchanged between STAs and an AP to obtain the AP's SSID before association with the AP?

Options:

A.

Probe Request

B.

Discovery

C.

Probe Response

D.

Beacon

Question 184

Which of the following port states are included in Rapid Spanning Tree Protocol (RSTP)?

Options:

A.

Discarding

B.

Forwarding

C.

Learning

D.

Listening

Question 185

An ACL is essentially a packet filter. An ACL takes effect only after it is applied to a service module.

Options:

A.

TRUE

B.

FALSE

Question 186

Which of the following are features of the OSPF protocol?

Options:

A.

The shortest path is calculated based on the number of hops.

B.

Triggered update is supported.

C.

Routing loops are likely to occur.

D.

Area division is supported.

Question 187

When a host uses the stateless address autoconfiguration solution to obtain an IPv6 address, the host cannot obtain the DNS server address.

Options:

A.

TRUE

B.

FALSE

Question 188

On the VRP platform, which of the following parameters can be used together with the "ping" command to specify the source address of an echo request message?

Options:

A.

-d

B.

-n

C.

-a

D.

-s

Question 189

On an STP-enabled switch, a port in the Learning state can transition to the Forwarding state only after the Forward Delay timer expires.

Options:

A.

TRUE

B.

FALSE

Question 190

Which of the following IEEE 802.11 standards supports a theoretical negotiated rate of 5 Gbit/s or higher?

Options:

A.

802.11a

B.

802.11ax

C.

802.11n

D.

802.11b

Question 191

Which of the following packets are OSPF packets?

Options:

A.

LSA

B.

HELLO

C.

LSR

D.

LSU

Question 192

After the administrator performs the configuration shown in the figure on a router, which of the following commands can be used to specify a short lease for addresses assigned using DHCP?

Options:

A.

dhcp select relay

B.

lease 0

C.

lease day 0 hour 10

D.

lease 24

Question 193

As shown in the figure, RTA uses NAT and has an address pool configured to implement many-to-many non-NAPT address translation, so that hosts on the private network can access the public network. Assume that the address pool has only two public IP addresses, which are translated for Host A and Host B. If Host C wants to access the public network, which of the following statements is true?

Question # 193

Options:

A.

All hosts use public IP addresses in turn and can access the public network.

B.

No public IP address is assigned to Host C, and Host C cannot access the public network.

C.

RTA performs NAT based on the source port number of Host C, and Host C can access the public network.

D.

RTA assigns an interface address (200.10.10.3) to Host C, and Host C can access the public network.

Question 194

Which of the following is the default port number of the Telnet server?

Options:

A.

22

B.

24

C.

21

D.

23

Question 195

TION NO: 29

For an Eth-Trunk in LACP mode, what is the default LACP system priority of a Huawei switch?

Options:

A.

4096

B.

36864

C.

32768

D.

24576

Question 196

Which of the following statements is true about link aggregation in manual load balancing mode?

Options:

A.

A maximum of four active interfaces can be configured in manual load balancing mode.

B.

In manual load balancing mode, devices at both ends of a link send LACPDUs to each other.

C.

In manual load balancing mode, all active interfaces forward data and load balance traffic.

D.

The number of active interfaces can be set in manual load balancing mode.

Question 197

Network devices running SNMP can proactively report traps to help network administrators detect faults in a timely manner.

Options:

A.

TRUE

B.

FALSE

Question 198

On the Huawei VRP, what is the default preference of different route types, in descending order?

Options:

A.

Direct > Static > RIP > OSPF

B.

Direct > OSPF > RIP > Static

C.

Direct > RIP > Static > OSPF

D.

Direct > OSPF > Static > RIP

Question 199

What is used as the data link-layer MAC address that identifies each VAP on an AP?

Options:

A.

BSS

B.

SSID

C.

BSSID

D.

ESS

Question 200

Which SNMP version focuses on two main aspects, namely security and administration. The security aspect is addressed by offering both strong authentication and data encryption for privacy. The administration aspect is focused on two parts, namely notification originators and proxy forwarders.

Options:

A.

SNMPv2c

B.

SNMPv1

C.

SNMPv3

D.

SNMPv2

Question 201

Which of the following statements about the network shown in the figure is true?

Question # 201

Options:

A.

The sub-interface of Router B cannot learn the MAC address of the sub-interface of Router A.

B.

The sub-interface of Router A cannot learn the MAC address of the sub-interface of Router B.

C.

The sub-interface numbers of Router A and Router B are different, so Router A and Router B cannot communicate with each other.

D.

The host at 10.0.12.1 can ping the host at 10.0.12.2.

Question 202

It is advised to assign static IP addresses to servers during campus network planning.

Options:

A.

TRUE

B.

FALSE

Question 203

Which of the following statements is true about the Forward Delay timer of STP?

Options:

A.

Reduce the interval for sending BPDUs.

B.

Improve the STP convergence speed.

C.

Improve the configuration BPDU lifetime, ensuring that the configuration BPDUs can be forwarded to more switches.

D.

Prevent temporary loops.

E.

Delay is required when a port transitions between Blocking and Disabled.

Question 204

In the following figure, all links are Ethernet links, and all interfaces on the routers are running OSPF. Given this, how many DRs will be elected on this network?

Question # 204

Options:

A.

1

B.

3

C.

4

D.

2

Question 205

Which of the following are true about the Ethernet data frame with the "Length/Type" field being 0x0806?

Options:

A.

The source MAC address of the data frame is definitely not FFFF-FFFF-FFFF.

B.

The data frame is an Ethernet II frame.

C.

The data frame is an IEEE 802.3 frame.

D.

The destination MAC address of the data frame must be FFFF-FFFF-FFFF.

Question 206

To provide the information about the IP addresses that a user packet traverses along the path to the destination, which of the following does Tracert record in each expired ICMP TTL packet?

Options:

A.

Source port.

B.

Destination IP address.

C.

Source IP address.

D.

Destination port.

Question 207

Which of the following WLAN security policies support open link authentication?

Options:

A.

WPA2-PSK

B.

WPA

C.

WEP

D.

WPA2-802.1X

Question 208

Refer to the following configuration of an interface on a switch. What is the PVID of the interface?

interface GigabitEthernet0/0/1

port hybrid tagged vlan 2 to 3 100

port hybrid untagged vlan 4 6

Options:

A.

2

B.

100

C.

1

D.

4

Question 209

Only one SSID can be bound to each radio of an AP.

Options:

A.

TRUE

B.

FALSE

Question 210

Which of the following fields are included in an MPLS header?

Options:

A.

Label

B.

TTL

C.

EXP

D.

Tos

Question 211

What is the number range of an advanced ACL?

Options:

A.

2000-2999

B.

3000-3999

C.

6000-6031

D.

4000-4999

Question 212

telnetlib is a module provided by Python to implement the Telnet protocol.

Options:

A.

TRUE

B.

FALSE

Question 213

The network administrator performs the configuration shown in the following figure on RTA. If a user needs to be authenticated in the authentication domain named huawei, which of the following statements is true?

Options:

A.

The authentication scheme au2 is used for authentication.

B.

The authentication scheme aul is used for authentication.

C.

The authentication scheme au2 is used for authentication. If the authentication scheme au2 is deleted, the authentication scheme aul is used.

D.

The authentication scheme aul is used for authentication. If the authentication scheme aul is deleted, the authentication scheme au2 is used.

Question 214

The router that runs OSPF first enters the Full state and then synchronizes the LSDB.

Options:

A.

TRUE

B.

FALSE

Question 215

Which of the following statements is true about root bridge election in STP?

Options:

A.

The device with the largest bridge priority becomes the root bridge.

B.

If the bridge priorities of devices are the same, the device with the largest MAC address becomes the root bridge.

C.

The device with the smallest bridge priority becomes the root bridge.

D.

If the bridge priorities are the same, the device with the largest number of ports becomes the root bridge.

Question 216

Refer to the graphic, 00e0-fc99-9999 is a specific host MAC address learned by a switch through ARP, and the host changes the IP address three times.

Options:

A.

TRUE

B.

FALSE

Question 217

For the Versatile Routing Platform (VRP), the login timeout period can be set only on a VTY interface.

Options:

A.

TRUE

B.

FALSE

Question 218

With SNMP, an NMS can only display the device running status but cannot deliver configurations.

Options:

A.

TRUE

B.

FALSE

Question 219

Assuming all STP enabled switches have the same bridge priority. The MAC address of switch A is 00-e0-fc-00-00-40, the MAC address of switch B is 00-e0-fc-00-00-10, the MAC address of switch C is 00-e0-fc-00-00-20, and the MAC address of switch D is 00-e0-fc-00-00-80. Which switch will be elected as the root switch?

Options:

A.

Switch B

B.

Switch A

C.

Switch D

D.

Switch C

Question 220

After an Eth-Trunk in LACP mode is created, devices on both ends send LACPDUs to elect the Actor. Which of the following parameters in LACPDUs determine the Actor election?

Options:

A.

Device priority

B.

Interface number

C.

MAC address

D.

Interface priority

Question 221

What is the main function of the DNS protocol?

Options:

A.

Remote access

B.

File transfer

C.

Domain name resolution

D.

Email transmission

Question 222

When a switch receives a unicast data frame, if the destination MAC address of the data frame can be found in the MAC address table of the switch, the data frame is definitely forwarded through the port corresponding to the MAC address.

Options:

A.

TRUE

B.

FALSE

Question 223

What is the length range of an Ethernet_II frame that contains an Ethernet header?

Options:

A.

64-1518 bytes

B.

60-1560 bytes

C.

64-1500 bytes

D.

46-1500 bytes

Question 224

If Spanning Tree Protocol (STP) is disabled on the network consisting of switches, a Layer 2 loop will definitely occur.

Options:

A.

TRUE

B.

FALSE

Question 225

If the transport-layer protocol is UDP, the value of the "Protocol" field at the network layer is 6.

Options:

A.

TRUE

B.

FALSE

Question 226

As shown in the figure, all switches run STP. Assume that the path cost of all ports is 200. What is the root path cost contained in the configuration BPDU received by G0/0/4 on SWD?

Question # 226

Options:

A.

200

B.

600

C.

400

D.

0

Question 227

A Layer 2 ACL can match information such as the source MAC address, destination MAC address, source IP address, and destination IP address.

Options:

A.

TRUE

B.

FALSE

Question 228

Which of the following is the default value of the Router Dead Interval field in OSPF Hello packets on a broadcast network?

Options:

A.

20 seconds

B.

30 seconds

C.

40 seconds

D.

10 seconds

Question 229

What function does Ctrl+Z have in the VRP system?

Options:

A.

Exits the console interface view.

B.

Exits the interface view.

C.

Returns from any view to the user view.

D.

Exits the current view.

E.

Returns from the system view to the user view.

Question 230

Which of the following advantages is/are provided by inter-VLAN routing in one-arm routing mode?

Options:

A.

Reduced use of IP addresses

B.

Reduced number of links

C.

Reduced number of entries in the routing table

D.

Reduced number of devices

Question 231

A Layer 2 switch works at the data link layer. As such, it can identify MAC addresses in data frames, forward data based on MAC addresses, and record mappings between MAC addresses and interface numbers in its MAC address table.

Options:

A.

TRUE

B.

FALSE

Question 232

Which of the following network parameters can be allocated using DHCP?

Options:

A.

Address of the DNS server

B.

Operating system

C.

Gateway address

D.

IP address

Question 233

Which of the following commands to configure the default route is correct? ()

Options:

A.

B. (Huawei)ip route-statiC.0.0.0.0 255.255.255.255192.168.1.1

B.

(Huawei)ip route-statiC.0.0.0.0 0.0.0.0 192.168.1.1

C.

D. (Huawei)ip route-statiC.0.0.0.0 0.0.0.0 0.0.0.0

Question 234

In the broadcast network, OSPF runs on four routers in the same area and on the same network segment. OSPF will automatically elect one DR and multiple BDRs to achieve a better backup effect ()

Options:

A.

True

B.

False

Question 235

FIT AP can work independently without relying on AC. ()

Options:

A.

True

B.

False

Question 236

Which of the following statements about MPLS Labe1 labels is wrong? ()

Options:

A.

The label is encapsulated between the network layer and the transport layer

B.

The label is carried by the header of the message and does not contain the topologyinformation.

C.

The label is used to uniquely identify the forwarding equivalence class FEC to which a packet belongs

D.

The tag is a short identifier with a fixed length. It only has a local meaning

Question 237

The administrator wants to allocate a Hundred P address on the G0/0/0 interface of the router. Which of the following addresses is correct? ()

Options:

A.

192.168.10.112/30

B.

237.6.1.2/24

C.

127.3.1.4/28

D.

145.4.2.55/26

Question 238

The network management system can only view the operating status of the device through the SNMP protocol, but cannot issue configurations. ()

Options:

A.

True

B.

False

Question 239

Network devices running the SNMP protocol run an agent process locally. ()

Options:

A.

True

B.

False

Question 240

In VRPOn the platform, the command"interfacevlanit<vlan-id>"The role is (). ()

Options:

A.

B. No such command

B.

Create or enter VLAN virtual interface view

C.

D. Configure VLAN for a port

Question 241

How many types of data flows with different service levels can be marked based on MPLS labels? ()

Options:

A.

4

B.

2

C.

16

D.

8

Question 242

The correct setting of the terminal emulation program when configuring the router through the Console ()

Options:

A.

B. 9600bps, 8 data bits, 1 stop bit, even parity and hardware flow control

B.

9600bps, 8 data bits, 1 stop bit, no checksum and no flow control

C.

D. 4800bps, s data bit, 1 stop bit, odd checksum and no flow control

Question 243

In which working state of the port in the STP protocol can it be changed to the Forwarding state without going through other states? ()

Options:

A.

Listening

B.

Disabled

C.

Blocking

D.

Learning

Question 244

The WPLS tag header is encapsulated between the data link layer header and the network layer header of the message.

Options:

A.

True

B.

False

Question 245

Which of the following fields is not included in the He1lo packet of the OSPF protocol? ()

Options:

A.

sysname

B.

C. HelloInterval

C.

D. Neighbor

Question 246

Which of the following statements is correct for the ACL configured in the Telnet application? ()

Options:

A.

The device with P address 172.16.105.4 can use Telnet service

B.

The device with IP address 172.16.105.3 can use Telnet service

C.

The device with IP address 172.16.105.5 can use Telnet service

D.

The device with P address 172.16.105.6 can use Telnet service

Question 247

When the lease period reaches what percentage does the DHCP client send the lease renewal message for the first time? ()

Options:

A.

0.5

B.

0.875

C.

D. 0.25

Question 248

In the WLAN network architecture, terminal devices that support the 802.11 standard are called? ()

Options:

A.

B. AC

B.

STA

C.

D. AP

Question 249

The administrator hopes that RTA. uses static routing and preferentially sends data packets to RTB's Loopback0 interface through G0/0/1 port, while G0/0/2 is used as a backup. How to configure on RTA to achieve this requirement ()

Options:

A.

ip route-statiC.10.0.2.2255.255.255.255 10.0.12.2ip

Route-statiC.10.0.2.2255.n255.255.255 10.0.21.2 preference 40

B.

ip route-statiC.10.0.2.2255.255.255.25 5 10.0.12.2 preference 70 ip route-static/n10.0.2.2255.255.255.25510.0.21.2

C.

ip route-statiC.10.0.2.2255.255.255.255 10.0.12.2ip

Route-statiC.10.0.2.2255.255.n255.25510.0.21.2

D.

ip route-statiC.10.0.2.2255.255.255.25510.0.12.2ip

Route-statiC.10.0.2.2255.n255.255.255

Question 250

The following statement about the TTL field in the IP packet header is correct. ()

Options:

A.

TTL defines the time interval at which the source host can send data packets

B.

B. TTL defines the number of packets that the source host can send

C.

Each time a P packet passes through a router, its TTL value will be reduced by 1

D.

Each time an IP packet passes through a router, its TTL value is increased by 1

Question 251

Which of the following statements about the edge port in the RSTP protocol is correct? ()

Options:

A.

The edge port discards the received configuration BPDU packet

B.

The edge port can be directly transferred to the Forwarding state from Disable

C.

Edge port participates in RSTP operation

D.

The interconnection ports between switches need to be set as edge ports

Question 252

IPCP dynamic address negotiation can automatically obtain the address()

Options:

A.

True

B.

False

Question 253

When planning a campus network, which of the following methods can be used to divide service VLANs? ()

Options:

A.

VLAN by business

B.

C. Divide VLAN by logical area

C.

D. Divide VLAN into J by geographical area

Question 254

About the above configuration command is correct ()

Options:

A.

Modify the user's authority level to 3. And save the configuration

B.

B. Modify the limit level of the save command used by a user to 3

C.

C. Modify the permission level of the user view command to 3, and save the matching sinus

D.

Modify the permission level of the save command in the user view to 3

Question 255

Basic ACL number value range ().

Options:

A.

2000-2999

B.

B. 1000-1999

C.

C. 3000-3999

D.

D. 4000-4999

Question 256

On the VRP platform, which of the following methods can be used to access previous historical commands? ()

Options:

A.

Ctr1+U

B.

Ctr1+P

C.

Left cursor

D.

Up cursor

Question 257

Which of the following fields is not included in the HELL0 packet of the OSPF protocol? ().

Options:

A.

Neighbor

B.

Network Mask

C.

HelloInterval

D.

Sysname

Question 258

By default, what is the ForwarD.Delay time of the STP protocol in seconds? ()

Options:

A.

B. 10

B.

15

C.

D. 20

Question 259

Since the TCP protocol uses a three-way handshake mechanism when establishing a connection and closing a connection, TCP supports reliable transmission.

Options:

A.

True

B.

False

Question 260

PAP authentication is more secure than CHAP authentication because it does not carry passwords in clear text

Options:

A.

True

B.

False

Question 261

Which of the following packet types is used by RADIUS to indicate authentication rejection? ()

Options:

A.

Access-Accept

B.

Access-Request

C.

Access-Challenge

D.

Access-Reject

Question 262

The output information of the link aggregation port of a certain switch is as follows. If you want to delete Eth-Trunk1, which of the following commands is correct? ()

Options:

A.

undo interface Eth-trunk 1

B.

B. inte GigabitEthernet 0./0/2 Undo eth-trunk Quit Undo interface eth-trunk 1

C.

inte GigabitEthernet 0./0/1 Undo eth-trunk Quit inte GigabitEthernet0./0/2 Undo ethtrunk Quit

D.

D. inte GigabitEthernet 0./0/1 Undo eth-trunk Quit Undo interface eth-trunk 1

Question 263

After the network administrator uses the TracertRoute function on the router device, in the data packet sent by the router, the value of the Protoco1 field in the IPv4 header is? ()

Options:

A.

17

B.

2

C.

6

D.

1

Question 264

On the VRP operating platform, what command is used to display the current interface configuration in the interface view? ()

Options:

A.

display users

B.

display version

C.

display this

D.

display ip interfacebrief

Question 265

Which of the following port states is not included in the RSTP protocol? ()

Options:

A.

Learning

B.

Discarding

C.

Forwarding

D.

Blocking

Question 266

Which of the following descriptions of wireless devices is correct? ()

Options:

A.

FIT AP-Generally complete user access, authentication, service forwarding and other functions independently

B.

The wireless controller AC is generally located at the convergence layer of the entire network, providing high-speed, safe and reliable VLAN services

C.

D. FAT AP generally works with wireless controller

Question 267

UDP cannot guarantee the reliability of data transmission, and does not provide functions such as message sequencing and flow control. It is suitable for flows that do not require high transmission reliability, but require high transmission speed and delay ().

Options:

A.

True

B.

False

Question 268

What kind of packets does the OSPF protocol use to discover and maintain neighbor relationships? ()

Options:

A.

HELLO

B.

C. LSU

C.

D. DD

Question 269

A certain ACL of the router is in the following rules, rule deny source192.168.2.00.0.0.255 destination 172.16.10.20.0.0.0 Which of the following statements is correct? ()

Options:

A.

The source IP is 172.16.10.2. All TCP packets whose destination IP is 192.168.2.1 match this rule

B.

All TCP packets whose source IP is 192.168.2.1 and destination IP is 172.16.10.1 match this rule

C.

C. sourceIP is 172.16.10.2 and all TCP packets whose destination IP is 192.168.2.0 match this rule

D.

sourceIAll TCP packets whose P is 192.168.2.1 and destination P is 172.16.10.2 are configured with this rule.

Question 270

All four switches run STP, and various parameters adopt default values. If the G0/0/2 port of switch C is blocked and the configuration BPDU cannot be sent through this port, how long will the blocked port in the network enter the forwarding state ()

Options:

A.

About 50 seconds

B.

About 30 seconds

C.

D. About 15 seconds

Question 271

The router needs to modify the destination IP address in the data packet when forwarding the data packet ()

Options:

A.

True

B.

False

Question 272

Layer 3 devices like routers receive data frames based on () Forwarding data frames.

Options:

A.

ARP table

B.

MAC. address table

C.

Routing table

Question 273

After FIT AP obtains AC.'s IP address, what is the first operation to perform? ()

Options:

A.

B. Upgrade software version

B.

Establish a CAPTAP tunnel

C.

D. Request configuration file

Question 274

VRP operating system commands are divided into four levels: access level, monitoring level, configuration level, and management level. Which level can run various business configuration commands but cannot operate the file system? ()

Options:

A.

Configuration level

B.

B. Monitoring level

C.

C. Access level

D.

D. Management level

Question 275

When the Access type port sends a message, it will ().

Options:

A.

Strip the VLAN information of the high packet, and then send it out

B.

Type the PVID. information of this port, and then send it out

C.

C. Send tagged messages

D.

Add the VLAN information of the message, and then send it out

Question 276

On the broadcast network, both DR and BDR use the multicast address 224.0.0.6 to receive link state update messages ()

Options:

A.

True

B.

False

Question 277

How many more bytes are the packets using MPLS label double-layer nesting technology than the original IP packets ()

Options:

A.

8

B.

4

C.

D. 16

Question 278

The VlanIF IP addresses of the same switch cannot be the same. ()

Options:

A.

True

B.

False

Question 279

The following is the statement about the election of active ports in link aggregation LACP mode. the correct one is? ()

Options:

A.

The interface priority is compared first, and the better one cannot be judged to continue to compare the interface number, the smaller the better.

B.

B. Only compare interface priority

C.

C. Compare device priority

D.

D. Only compare interface numbers

Question 280

Which of the following parameters is not included in the configuration BPDU of the STP protocol? ()

Options:

A.

VLAN ID

B.

C. Bridge ID

C.

D. Root ID

Question 281

In what state does the OSPF protocol determine the master-slave relationship of DD. packets? ()

Options:

A.

B. Full

B.

2-way

C.

D. Exchange

Question 282

OSThe I reference model from high-level to bottom-level is ()

Options:

A.

Application layer, transport layer, network layer, data link layer, physical layer

B.

Application layer Session layer Presentation layer Transport layer Network layer Data link layer Physical layer

C.

Application layer Presentation layer Session layer Network layer Transport layer Data link layer Physical layer

D.

Application layer Presentation layer Session layer Transport layer Network layer Data link layer Physical layer

Question 283

The role of the OSPF protocol is

Options:

A.

Pass routing information

B.

B. Transmit MAC information

C.

C. Pass ARP information

D.

D. No effect

Question 284

Use the command kdir test in the VRP operating platform. The system will create a directory named test.

Options:

A.

True

B.

False

Question 285

In order to implement FIT AP online, FIT AP first needs to obtain the IP address of AC. Which of the following options is not included in FITAP obtaining the IP address of AC. ()

Options:

A.

DHCP option mode

B.

Static designation method on AP

C.

Broadcasting method

D.

Multicast mode

Question 286

The following two configuration commands can realize the router RTA. The main and backup backup routes to the same destination 10.1.1.0: ()

(RTA)ip route--statiC.10.1.1.02412.1.1.1 permanent(RTA)ip route--statiC.10.2.2.02413.1.1.1.

Options:

A.

True

B.

False

Question 287

The following description about the specified port of the spanning tree is correct ()·

Options:

A.

The designated port can forward configuration BPDU packets to the network segment connected to it

B.

B. The port on the root switch must not be a designated port

C.

C. Each switch has only one designated port

D.

D. The port on the root switch must be a designated port

Question 288

CSS refers to the combination of two switch devices that support cluster features. Logically combined into one switch device. ()

Options:

A.

True

B.

False

Question 289

There are multiple route entries to the same destination network in the routing table. These routes are called? ()

Options:

A.

Equal cost routing

B.

B. Multipath routing

C.

Default route

D.

D. Suboptimal routing

Question 290

When planning a campus network, which of the following mask lengths is recommended for device interconnection IP addresses? ()

Options:

A.

16

B.

32

C.

24

D.

30

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Total 790 questions