Ericsson Certified Associate - Radio Network Optimization 認定 ECP-383 試験問題:
1. Which two statements are true about 64 QAM modulation in the downlink direction? (Choose two.)
A) The spectral efficiency of 64 QAM is higher than QPSK in strong radio conditions.
B) The spectral efficiency of 64 QAM is lower than QPSK in strong radio conditions.
C) The usage of 64 QAM is UE dependent.
D) The usage of 64 QAM is not dependent on radio channel quality.
2. Refer to the exhibit.
You identify an L700 cell serving a highway with poor handover success rate performance.
Referring to the exhibit, which two actions will help to improve the handover performance in this scenario?
(Choose two.)
A) Decrease the
timetotriggerA3 parameter.
B) Decrease the
A3offset
parameter.
C) Increase the
timetotriggerA3 parameter.
D) Increase the
A3offset
parameter.
3. A customer has Identified problems In an Indoor, medium loaded, urban area of a GSM/WCDMA collocated network. The problem seems to be in the uplink. The signal level received by the problematic site is high, and the downlink signal in the problematic area is acceptable.
Which two actions would you use to troubleshoot the issue? (Choose two.)
A) Add a pico cell In the same RAT and frequency.
B) Decrease base station transmission power.
C) Investigate external interference.
D) Run a passive inter-modulation (PIM) analysis.
4. What is an advantage of using flexible numerology in New Radio (NR) 5G?
A) It maintains a more consistent overhead over a very large range of carrier frequencies.
B) It ensures that the same subcarrier bandwidth is used in NR in both high and low frequencies.
C) It provides a non defined link between subcarriers used in LTE and NR.
D) It allows an alphanumeric mapping between physical data channels on coslted LTE and NR in non-standalone scenarios.
5. Which two use cases are specifically targeted for 5G technology? (Choose two.)
A) asynchronous transfer mode backhaul
B) massive machine-type communications
C) remote controlled machines
D) multi tabbed Web browsing
質問と回答:
| 質問 # 1 正解: A、C | 質問 # 2 正解: C、D | 質問 # 3 正解: C、D | 質問 # 4 正解: D | 質問 # 5 正解: B、C |














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