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Ericsson ECP-383 Ericsson Certified Associate - Radio Network Optimization Exam Practice Test

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Total 62 questions

Ericsson Certified Associate - Radio Network Optimization Questions and Answers

Question 1

Which statement describes uplink Discontinuous Transmission (DTX)?

Options:

A.

DTX is a method of saving battery power for the BTS by turning off the transmitter while "voice" is not present.

B.

DTX is a method of saving battery power for the MSC by turning off the transcoder while "voice" is not present.

C.

DTX is a method of saving battery power for the BSC by turning off the transcoder while "voice" is not present.

D.

DTX is a method of saving battery power for the MS by turning off the transmitter while "voice" is not present.

Question 2

A user is participating in an IR.92 compliant VoLTE call.

What is the Quality of Service Class Indicator (QCI) of the bearer that carries SIP signaling?

Options:

A.

QCI 1

B.

QCI 2

C.

QCI 8

D.

QCI 5

Question 3

What Is the purpose of the Location/Tracking Area update?

Options:

A.

It is used to locate the UEs in idle mode.

B.

It is used to internally locate UEs during on-going calls.

C.

It is used to locate the originating UE.

D.

It is used to locate the best IRAT cells.

Question 4

Review the exhibit.

Question # 4

A new residential area has recently been built showing a lack of 3G uplink coverage as shown in the exhibit. The terrain is flat and all the buildings in the area are 20 meters in height with no other relevant direct obstacles.

What should be applied to cells A_l and 8_1 to provide 3G service to the new area knowing that both cells have a soft handover (SHO) factor of 1.9?

Options:

A.

Increase the CPICH power.

B.

Increase the electrical downtilt.

C.

Reduce the antenna height.

D.

Change the azimuth.

Question 5

Which two statements are correct about voice quality in a VoLTE network? (Choose two.)

Options:

A.

Increasing jitter will improve voice quality.

B.

Increasing silent gaps in the received audio signal will improve voice quality.

C.

Decreasing jitter will Improve voice quality.

D.

Decreasing silent gaps in the received audio signal will improve voice quality.

Question 6

How would the highest theoretical UL throughput in a WCDMA network that supports HSPA be achieved?

Options:

A.

using R99, UL SF 4

B.

using R99, UL SF 8

C.

using 2 ms TTI for EUL

D.

using 10 ms TTI for EUL

Question 7

Performance Management Statistics have recently shown a sharp rise in received interference power on an LTE site during the busiest hours. A collocated WCDMA base station has recently acquired a new carrier and upgraded power amplifier. The upgrade correlates with the sharp rise in received interference

power.

What are two appropriate actions to solve this problem? (Choose two.)

Options:

A.

Request or perform a build audit of the newly upgraded collocated WCDMA site.

B.

Increase the power amplifier on the impacted collocated LTE sectors.

C.

Reduce the hsPowerMargin parameter to make more power available for HSDPA.

D.

Review the site design in consultation with the Ericsson collocation and coexistence guidelines.

Question 8

A customer is deploying VoLTE and complains about high voice drop rates and voice quality degradation at the cell edge in most LTE cells in the area. The network has a dense WCDMA coverage on the 700 MHz band and patchy LTE coverage on the 2100 MHz band.

Which two features would you activate to solve this problem? (Choose two.)

Options:

A.

DRX

B.

256 QAM DL

C.

TTI Bundling

D.

SRVCC Handover to UTRAN

Question 9

What are two advantages of using the Data Forwarding at Intra-LTE Handover feature? (Choose two.)

Options:

A.

Data is received from two cells at the same time.

B.

Packet loss is minimized during handovers.

C.

TCP performance Is improved.

D.

User data can be forwarded directly between UEs over Wi-Fi.

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Total 62 questions