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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

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Question 1

After an optimization meeting, an operator decides to double the transmitted power of an LTE cell. To test the effect of this change, a static test is performed before and after the change.

Which statement is correct in this scenario?

Options:

A.

The RSRP received by the UE remains stable.

B.

The variation of the RSRP will depend on the bandwidth of the cell.

C.

The RSRP received by the UE is increased by six dB.

D.

The RSRP received by the UE is increased by three dB.

Question 2

Which statement is correct about network slicing?

Options:

A.

Network slicking is a splitting of end users between competing operators in small population markets.

B.

Network slicing is a customized division of a cellular network designed to allow end users to control allocation of network resources between themselves.

C.

Network slicing is a separation of network architecture between vendors in a multivendor network.

D.

Network slicing is a movement of network functions between aggregation layers to meet performance requirements for specific use cases.

Question 3

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 4

What is a benefit of Remote Radio Unit (RRU) deployment compared to a standard Radio Unit (RU) deployment?

Options:

A.

RRU consumes less power.

B.

RRU provides for easier legalization of the equipment.

C.

RRU provides easier deployment and maintenance.

D.

RRU has lower feeder loss.

Question 5

An operator receives customer complaints from an indoor location. The Issues result from a bad neighbor plan in a single RAT and frequency network.

Which two optimization processes would you use to resolve the problem? (Choose two.)

Options:

A.

call trace based neighbor optimization

B.

drive test based neighbor optimization

C.

PM counter based neighbor optimization

D.

prediction based neighbor optimization

Question 6

Which identifier is used for locating a UE in a standalone LTE network?

Options:

A.

RAC

B.

TAC

C.

LAC

D.

URAC

Question 7

What is an advantage of using flexible numerology in New Radio (NR) 5G?

Options:

A.

It allows an alphanumeric mapping between physical data channels on coslted LTE and NR in non-standalone scenarios.

B.

It provides a non defined link between subcarriers used in LTE and NR.

C.

It ensures that the same subcarrier bandwidth is used in NR in both high and low frequencies.

D.

It maintains a more consistent overhead over a very large range of carrier frequencies.

Question 8

Using a cell optimization tool, you detect a sector that takes a large amount of traffic from a distant location that is covered by other sites and is also outside of the coverage predicted for this sector.

Which physical optimization action should you perform first In this situation?

Options:

A.

Increase the antenna height and verify the result.

B.

Install TMA and verify the result.

C.

Downtilt the antenna and verify the result.

D.

Increase the transmit power and verify the result.

Question 9

Review the exhibit.

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.

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Total 62 questions