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ECP-383 Practice Exam Questions and Answers

Ericsson Certified Associate - Radio Network Optimization

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Total Questions : 62

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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.

Discussion 0
Question # 2

What is a purpose of Radio Resource Management (RRM) parameter optimization tools?

Options:

A.  

coverage predictions

B.  

azimuth adjustment

C.  

geo-location procedures

D.  

traffic balancing

Discussion 0
Question # 3

Which two statements correctly describe Single Carrier Frequency Division Multiple Access (SC-FDMA) as used in LTE systems using uplink SIMO? (Choose two.)

Options:

A.  

SC-FDMA allows simultaneous uplink transmissions on the same physical resource blocks.

B.  

SC-FDMA is beneficial because it avoids (nter-cell interference.

C.  

SC-FDMA separates uplink transmissions in the time and/or frequency domain.

D.  

SC-FDMA is beneficial because it avoids intra-cell interference.

Discussion 0
Question # 4

Caller A is on a VoLTE call with Caller

B.  

Suddenly Caller A is no longer able to hear Caller B but Caller B can hear Caller

A.  

Which two call legs and directions should be analyzed first in this scenario? (Choose two.)

Options:

A.  

the Caller B downlink

B.  

the Caller A uplink

C.  

the Caller A downlink

D.  

the Caller B uplink

Discussion 0
Question # 5

Which two characteristics are true about 30 GHz spectrum compared to 2100 MHz spectrum? (Choose

two.)

Options:

A.  

It has improved in building penetration coverage.

B.  

It has a reduced antenna separation distance required for effective MIMO.

C.  

It has reduced in building penetration coverage.

D.  

It has an increased antenna separation distance required for effective MIMO.

Discussion 0
Question # 6

According to IR.92, which two LTE RAN functions are required to support VoLTE? (Choose two.)

Options:

A.  

Service Specific Inactivity Timer

B.  

RLC in Unacknowledged Mode for RTP transmissions

C.  

Inter-frequency handover

D.  

Multiple Radio Bearers per User

Discussion 0
Question # 7

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

Discussion 0
Question # 8

Review the exhibit.

Question # 8

An operator's LTE single layer network has a cell not carrying enough traffic. To increase the traffic carried by the cell, the operator decides to modify the Idle mode behavior of the cell. Values for the qRxLevMin and qQuaimin parameters are currently set to -120 dBm and -12 d

B.  

Referring to the exhibit, which two configurations would be used to potentially increase the traffic carried by this cell? (Choose two.)

Options:

A.  

Set the qRxLevMin parameter to -117 dBm.

B.  

Set the qQualMin parameter to -15 d

B.  

C.  

Set the qQuaiMin parameter to -9 d

B.  

D.  

Set the qRxLevMin parameter to -123 dBm.

Discussion 0
Question # 9

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

Discussion 0
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