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

What are two benefits of using VoLTE for speech calls? (Choose two.)

A. VoLTE allows the end user to remain connected to the 4G network while on a voice call.

B. VoLTE provides the ability to refarm legacy spectrum for newer technologies.

C. VoLTE maintains circuit switched functionality in a 4G network.

D. VoLTE provides a dedicated spectral channel for voice that is physically separated from other packet services.

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.

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?

A. QCI 1

B. QCI 2

C. QCI 8

D. QCI 5

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

What is the recommended setting for the primaryCpichPower parameter according to Ericsson NDO guidelines?

A. less than 33 dBm

B. 36 dBm or more Independently of the maximum transmission power

C. 8-10% of min[maximumTransmissionPower, maxDlPowerCapability]

D. 33 dBm independently of maximum transmission power

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

A. RAC

B. TAC

C. LAC

D. URAC

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

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.

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

Which two interfaces are part of a standalone 5G New Radio (NR) architecture? (Choose two.)

A. X2

B. N2

C. N3

D. SI

Which two statements are true about 64 QAM modulation in the downlink direction? (Choose two.)

A. The usage of 64 QAM is not dependent on radio channel quality.

B. The usage of 64 QAM is UE dependent.

C. The spectral efficiency of 64 QAM is higher than QPSK in strong radio conditions.

D. The spectral efficiency of 64 QAM is lower than QPSK in strong radio conditions.

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

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.

Which two benefits does OSS counter-based optimization provide compared to drive test measurements? (Choose two.)

A. OSS counters capture the indoor performance.

B. OSS counters allow throughput measurements in cells where no traffic is carried.

C. OSS counters only capture the outdoor performance.

D. OSS counters provide OPEX cost savings.

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

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.