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ECP-383 Ericsson Certified Associate - Radio Network Optimization

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Ericsson · ECP-383

Free ECP-383 Exam Dumps Preview

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Question 1

Single choice

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

A
RAC
B
TAC
C
LAC
D
URAC

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Correct answerB

Question 2

Multiple choice

What are two benefits provided by the introduction of GPRS/EGPRS Downlink Power Control in a GSM network? (Choose two.)

A
reduced power consumption in RBS
B
reduced downlink Interference levels In the system
C
reduced uplink interference levels in the system
D
increased PS accessibility

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Correct answersB, D

Question 3

Single choice

Review the exhibit.

What is the EIRP of the transmitter shown In the exhibit?

A
57.5 dBm
B
42.5 dBm
C
40 dBm
D
46 dBm

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Correct answerA

Question 4

Single choice

Why is synchronized operation used in LTE TDD base stations?

A
to allow downlink MIMO to be used
B
to allow handovers to LTE FDD carriers
C
to achieve good RACH timing accuracy
D
to reduce interference between uplink and downlink

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Correct answerD

Question 5

Single choice

Which KPI must be captured in a drive test with TEMS to review VoLTE accessibility?

A
Call Setup Success Rate
B
Handover Success Rate
C
Call Drop Rate
D
Voice Quality

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Correct answerA

Question 6

Single choice

Which element is used in maintaining a 4G VoLTE call leg?

A
NodeB
B
PSTN
C
P-GW
D
BSC

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Correct answerA

Question 7

Multiple choice

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.)

A
DRX
B
256 QAM DL
C
TTI Bundling
D
SRVCC Handover to UTRAN

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Correct answersC, D

Question 8

Multiple choice

Which two statements are valid for Call Re-establishment in WCDMA? (Choose two.)

A
Call Re-establishment in WCDMA targets RL failures or RLC errors in the DL.
B
When Call Re-establishment in WCDMA is activated and after RL failure or an RLC unrecoverable error, the UE selects a new cell using the soft handover procedure.
C
Call Re-establishment in WCDMA improves the voice drop rate.
D
When Call Re-establishment in WCDMA is activated and after RL failure or an RLC unrecoverable error, the UE goes to idle mode.

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Correct answersB, C

Question 9

Multiple choice

After the installation of a new LTE antenna on a roof top, UL interference power for that sector is observed.

In this scenario, which two situations would cause the interference? (Choose two.)

A
Equipment that generates electrical magnetic fields are in the same location.
B
The antenna was placed on a mast near the edge of a rooftop.
C
A plastic enclosure was placed to cover the antenna.
D
Reflective objects such as metal chains or metal ladders were placed in front of the antenna.

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Correct answersA, D

Question 10

Multiple choice

Which two statements are correct about a Self-Organizing Network (SON)? (Choose two.)

A
SON is a trace collection procedure for coverage prediction and reporting purposes.
B
SON is a centralized solution that automatically collects data and modifies parameters using a predefined algorithm.
C
SON is a drive test measurement tool for evaluation of network quality and new site location proposals.
D
SON is a combination of functions that automatically change network behavior.

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Correct answersB, D

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Ericsson Certified Associate - Radio Network Optimization

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