ECP-383 Online Practice Questions and Answers

How would you connect a Baseband module in the eNodeB to an Antenna Integrated Radio (AIR)?

A. using optical fiber

B. using a microwave link

C. using an RJ-45 Ethernet cable

D. using Bluetooth

Which two statements about physical resource blocks (PRB)s are correct? (Choose two.)

A. The maximum number of assigned PRBs for a TTI can exceed the number of available PRBs in the cell for that TTI.

B. The DL PRB distribution is not affected by the number of active cell users in the cell.

C. A higher throughput is expected when more DL PRBs are assigned to a user for a TTI.

D. The number of PRBs assigned for a user is dependent on the number of active users in the cell.

Using a cell optimization tool, you detect a sector that takes a large amount of traffic from a distant location that is covered by other sites and is also outside of the coverage predicted for this sector.

Which physical optimization action should you perform first In this situation?

A. Increase the antenna height and verify the result.

B. Install TMA and verify the result.

C. Downtilt the antenna and verify the result.

D. Increase the transmit power and verify the result.

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

A. coverage predictions

B. azimuth adjustment

C. geo-location procedures

D. traffic balancing

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.

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

What are two correct characteristics of TDD and FDD LTE systems? (Choose two.)

A. TDD LTE systems use guard period intervals after downlink transmissions.

B. FDD LTE systems require paired spectrum to separate uplink and downlink transmissions.

C. TDD LTE systems use guard period intervals after uplink transmissions.

D. TDD LTE systems require paired spectrum to separate uplink and downlink transmissions.

Performance Management Statistics have recently shown a sharp rise in received interference power on an LTE site during the busiest hours. A collocated WCDMA base station has recently acquired a new carrier and upgraded power amplifier. The upgrade correlates with the sharp rise in received interference power.

What are two appropriate actions to solve this problem? (Choose two.)

A. Request or perform a build audit of the newly upgraded collocated WCDMA site.

B. Increase the power amplifier on the impacted collocated LTE sectors.

C. Reduce the hsPowerMargin parameter to make more power available for HSDPA.

D. Review the site design in consultation with the Ericsson collocation and coexistence guidelines.

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

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.