Ericsson ECP-383 Online Practice Questions and Exam Preparation

Ericsson ECP-383 Online Questions & Answers

• Question 21:

  You are using the Performance Measurements system for Ericsson WCDMA network analysis and must use predefined counters. On which two levels would these counters be collected? (Choose two.)

  A. the cell level
  B. the TRX level
  C. the RNC level
  D. the BSC level
  A. the cell level
  C. the RNC level

• Question 22:

  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.)

  A. the Caller B downlink
  B. the Caller A uplink
  C. the Caller A downlink
  D. the Caller B uplink
  C. the Caller A downlink
  D. the Caller B uplink

• Question 23:

  Which KPI must be captured in a drive test with TEMS to review VoLTE accessibility?

  A. Call Setup Success Rate
  B. Handover Success Rate
  C. Call Drop Rate
  D. Voice Quality
  A. Call Setup Success Rate

• Question 24:

  A user is making a call on an LTE network.

  In this scenario, which encoding schemes are used?

  A. OFDMA in downlink, COMA in uplink
  B. CDMA in downlink, SC-FOMA in uplink
  C. SC-FDMA in downlink, OFDMA in uplink
  D. OFDMA in downlink, SC-FDMA in uplink
  D. OFDMA in downlink, SC-FDMA in uplink

• Question 25:

  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.
  A. OSS counters capture the indoor performance.
  D. OSS counters provide OPEX cost savings.

• Question 26:

  After the installation of a new LTE antenna on a roof top, UL interference power for that sector is observed. In this scenario, which two situations would cause the interference? (Choose two.)

  A. Equipment that generates electrical magnetic fields are in the same location.
  B. The antenna was placed on a mast near the edge of a rooftop.
  C. A plastic enclosure was placed to cover the antenna.
  D. Reflective objects such as metal chains or metal ladders were placed in front of the antenna.
  A. Equipment that generates electrical magnetic fields are in the same location.
  D. Reflective objects such as metal chains or metal ladders were placed in front of the antenna.

• Question 27:

  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.
  A. SC-FDMA allows simultaneous uplink transmissions on the same physical resource blocks.
  D. SC-FDMA is beneficial because it avoids intra-cell interference.

• Question 28:

  Several operators are using a Multi Operator Core Network (MOCN) with the Shared LTE RAN feature. Which element is shared by the operators in this scenario?

  A. eNodeB
  B. IMS
  C. MME
  D. SGW
  A. eNodeB

• Question 29:

  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.
  C. It serves many spatially separated users in the same time and frequency.
  D. It increases throughput by allowing access to larger spectrum slices.

• Question 30:

  What are two benefits of Carrier Aggregation? (Choose two.)

  A. to decrease the number of RRC connected users
  B. to Improve the use of scattered spectrum
  C. to increase capacity
  D. to improve coverage per carrier
  B. to Improve the use of scattered spectrum
  C. to increase capacity