ECP-383 Online Practice Questions and Answers

You are performing a physical parameter optimization of an LTE network with an automatic tool that uses propagation predictions. As a result, the tool estimates an increase of RSRP from cell A at a particular location.

In this scenario, what has happened?

A. Signal attenuation from the transmitter to the location has increased.

B. The antenna pattern of cell A has changed.

C. The PRB utilization of cell A has decreased.

D. Soft handover factor has increased.

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.

What is a cause of degradation in the RSRQ of a serving cell?

A. thermal noise

B. average power transmitted by the UE

C. periodic measurement report transmissions in the serving cell

D. SIB transmissions sent by the UE

In LTE, what is the definition of an A2 event?

A. The neighbor cell becomes better than the threshold.

B. The serving ceil becomes better than the threshold.

C. The serving cell becomes worse than the threshold.

D. The neighbor cell becomes worse than the threshold.

Which two statements are true about the Antenna Integrated Radio (AIR)? (Choose two.)

A. The AIR is a hardware unit that integrates the radio and the antenna.

B. The AIR replaces the digital/baseband unit.

C. The AIR in an LTE system is directly connected with the MME using the SI interface.

D. The AIR can replace the standard RU/RRU and antenna.

What are two benefits of massive MIMO? (Choose two.)

A. It serves many users in the same time and frequency with a single element antenna.

B. It increases SINR by focusing a signal toward an individual user.

C. It serves many spatially separated users in the same time and frequency.

D. It increases throughput by allowing access to larger spectrum slices.

An LTE operator explains that the traffic in cell A is very high compared to the traffic In cell B, which are close to each other. Cells A and B are using the same frequency.

In this scenario, which two actions would balance the traffic between cell A and cell B? (Choose two.)

A. Optimize the connected mode mobility parameters.

B. Optimize the idle mode related parameters.

C. Activate the inter-frequency load balancing feature.

D. Activate the TTI Bundling feature.

Which two channel bandwidths are available in LTE? (Choose two.)

A. 2.8 MHz

B. 1.4 MHz

C. 30 MHz

D. 15 MHz

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 statements about the Radio Connection Supervision (RCS) algorithm in LTE are correct? (Choose two.)

A. It selects the number of PRBs assigned to users for downlink and uplink.

B. It collects radio problems and inactivity information with the purpose to release resources.

C. It controls the modulation and coding scheme used in DL transmissions.

D. It supervises the radio connection between E-UTRAN and a UE in connected mode.