ECP-383 Online Practice Questions and Answers

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

A. Service Specific Inactivity Timer

B. RLC in Unacknowledged Mode for RTP transmissions

C. Inter-frequency handover

D. Multiple Radio Bearers per User

Which statement describes uplink Discontinuous Transmission (DTX)?

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.

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?

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.

Review the exhibit.

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

A. Set the qRxLevMin parameter to -117 dBm.

B. Set the qQualMin parameter to -15 dB.

C. Set the qQuaiMin parameter to -9 dB.

D. Set the qRxLevMin parameter to -123 dBm.

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

A. RAC

B. TAC

C. LAC

D. URAC

Which multiple access technique is used In LTE radio DL?

A. Single Carrier Frequency Division Multiple Access (SC-FDMA)

B. Time Division Multiple Access (TDMA)

C. Code Division Multiple Access (CDMA)

D. Orthogonal Frequency Division Multiple Access (OFDMA)

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

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.

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

A. NodeB

B. PSTN

C. P-GW

D. BSC

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

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.

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