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Cisco 300-915 Developing Solutions Using Cisco IoT and Edge Platforms (DEVIOT) Exam Practice Test

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Total 60 questions
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Developing Solutions Using Cisco IoT and Edge Platforms (DEVIOT) Questions and Answers

Question 1

Refer to the exhibit.

Question # 1

Which two statements about data flow are true? (Choose two.)

Options:

A.

Another AMQP broker should be implemented on the customer cloud.

B.

Instead of AMQP, MQTT should be used for compatibility issues in a cloud-to-cloud connection.

C.

A VPN tunnel is not necessary because the MQTT payload is encrypted by default.

D.

The gateway must stay constantly connected to the Kinetic cloud to avoid blank data sets, even when using caching functions.

E.

The Python application could use the paho-mqtt library.

Question 2

When constructing a Python script for data extraction using GMM APIs on a Cisco Kinetic Cloud platform, how should the API authentication be implemented?

Options:

A.

Generate the API keys once and edit the permissions as needed.

B.

Generate and use the API keys for the required access level from the Kinetic Cloud application.

C.

Use a complex username and password with 128-bit encryption.

D.

Use a complex username with an auto-generated password from the Kinetic Cloud application.

Question 3

An IoT engineer is responsible for security at an organization. Humans and machines need to be allowed to access services like database or compute on AWS. The engineer decides to implement dynamic secrets.

Which method helps to get this implementation accurate from a security point of view?

Options:

A.

Create a central secret system for humans and machine to obtain very short-lived dynamic secrets to access any service.

B.

Humans cannot be trusted, and each time they authenticate they should be issued with dynamic secrets.

Machines can be trusted, and they can be issued with static credentials.

C.

Maintain a different service associated to secret systems to issue access.

D.

After a user is authenticated by any trusted system, the user can be trusted to use any service.

Question 4

Refer to the exhibit.

Question # 4

Approximately 4000 oil platforms, each with 400 sensors, are spread in the Gulf of Mexico and all of their data must come together into one dashboard. Which general architecture should be selected to connect them?

Options:

A.

4-tier: sensor – edge device (Intel Atom CPU) – fog device (Intel Xeon CPU) – cloud

B.

5-tier: intelligent sensor– edge device (Intel Atom CPU) – fog device (Intel Xeon CPU) – edge data center (Intel Xeon CPU)

C.

2-tier: intelligent sensor – cloud

D.

3-tier: sensor – edge device (Intel Atom CPU) – cloud

Question 5

Which two statements define the mechanism for console access of the Guest Operating System from the Cisco IR829 router? (Choose two.)

Options:

A.

The Guest OS can be accessed by default on Telnet port 2070 from the Cisco IR829 console.

B.

The Guest OS console is available directly by the AUX port 3362 from the Cisco IR829 router.

C.

The Guest OS can be accessed directly using the console port on the Cisco IR829 router.

D.

The Guest OS can be accessed by initiating SSH from the Cisco IR829 console.

E.

The Guest OS console is available only when a static IP is configured on the host.

Question 6

Which method is used to gather data from a sensor?

Options:

A.

Configure the edge application to push data to the cloud.

B.

Set up a rendezvous point where the sensor and edge application meet.

C.

Set up a dedicate process for each sensor that grabs data.

D.

Pull data from the sensor.

Question 7

Which command is used to package a Docker-style Cisco IOx app using ioxclient?

Options:

A.

ioxclient docker create helloworld:1.0.

B.

ioxclient docker-app helloworld:1.0.

C.

ioxclient docker package helloworld:1.0.

D.

ioxclient docker helloworld:1.0.

Question 8

Refer to the exhibit.

Question # 8

While troubleshooting an error on an application descriptor for a Docker app in Cisco IOx (package.yaml), the app type appears to be missing. Which app type must be added to the snippet to resolve the issue?

Options:

A.

paas

B.

docker-vm

C.

docker

D.

docker-app

Question 9

Which connector is southbound?

Options:

A.

horizontal connector

B.

cloud connector

C.

device connector

D.

universal connector

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