Ericsson ECP-383 Practice Exam - 65 Unique Questions
Latest Questions ECP-383 Guide to Prepare Free Practice Tests
NEW QUESTION # 29
Review the exhibit.
Cell A has neighbor relations with cells B and C which share the same frequency and PCI. Cells B and C do not share any overlapping area.
Referring to the exhibit which statement is correct?
- A. Handover performance of cell C is affected.
- B. Handover performance of cell B is affected.
- C. Handover performance of cell A is affected.
- D. There is no degraded performance expected in any of the cells.
Answer: C
NEW QUESTION # 30
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 is beneficial because it avoids intra-cell interference.
- B. SC-FDMA allows simultaneous uplink transmissions on the same physical resource blocks.
- C. SC-FDMA is beneficial because it avoids (nter-cell interference.
- D. SC-FDMA separates uplink transmissions in the time and/or frequency domain.
Answer: A,B
NEW QUESTION # 31
What are two benefits of massive MIMO? (Choose two.)
- A. It increases SINR by focusing a signal toward an individual user.
- B. It serves many spatially separated users in the same time and frequency.
- C. It serves many users in the same time and frequency with a single element antenna.
- D. It increases throughput by allowing access to larger spectrum slices.
Answer: B,D
NEW QUESTION # 32
Which statement is correct about power control on an HS-PDSCH channel?
- A. Available power for the EUL channel impacts the HS-PDSCH data capacity.
- B. Available power and radio conditions impact the HS-PDSCH data rate.
- C. Outer loop power control is used.
- D. Inner closed loop power control is used.
Answer: B
NEW QUESTION # 33
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. 256 QAM DL
- B. TTI Bundling
- C. SRVCC Handover to UTRAN
- D. DRX
Answer: B,C
NEW QUESTION # 34
You have collocated sectors In your 2G network on the GSM 900 and the DCS 1800 bands. Reviewing the network level traffic distribution, you noticed that the GSM 900 sectors have five times more traffic than the DCS 1800 sectors.
Which two actions would improve load balancing between these bands? (Choose two.)
- A. expanding the site's transmission link
- B. adding additional GSM 900 sectors
- C. changing the handover margin
- D. changing the idle mode cell reselection parameter
Answer: C
NEW QUESTION # 35
What is an advantage of using flexible numerology in New Radio (NR) 5G?
- A. It ensures that the same subcarrier bandwidth is used in NR in both high and low frequencies.
- B. It allows an alphanumeric mapping between physical data channels on coslted LTE and NR in non-standalone scenarios.
- C. It maintains a more consistent overhead over a very large range of carrier frequencies.
- D. It provides a non defined link between subcarriers used in LTE and NR.
Answer: B
NEW QUESTION # 36
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 supervises the radio connection between E-UTRAN and a UE in connected mode.
- D. It controls the modulation and coding scheme used in DL transmissions.
Answer: B,C
NEW QUESTION # 37
Which two interfaces are part of a standalone 5G New Radio (NR) architecture? (Choose two.)
- A. SI
- B. N3
- C. N2
- D. X2
Answer: A
NEW QUESTION # 38
What Is the purpose of the Location/Tracking Area update?
- A. It is used to locate the best IRAT cells.
- B. It is used to locate the UEs in idle mode.
- C. It is used to locate the originating UE.
- D. It is used to internally locate UEs during on-going calls.
Answer: B
NEW QUESTION # 39
Why is synchronized operation used in LTE TDD base stations?
- A. to allow handovers to LTE FDD carriers
- B. to achieve good RACH timing accuracy
- C. to allow downlink MIMO to be used
- D. to reduce interference between uplink and downlink
Answer: D
NEW QUESTION # 40
What is a cause of degradation in the RSRQ of a serving cell?
- A. periodic measurement report transmissions in the serving cell
- B. thermal noise
- C. SIB transmissions sent by the UE
- D. average power transmitted by the UE
Answer: B
NEW QUESTION # 41
You are performing a drive test on a cluster carrying commercial WCDMA traffic using a drive testing tool.
What are two metrics that would be detected using this tool? (Choose two.)
- A. channel element utilization
- B. RNC processor load
- C. speech accessibility
- D. packet throughput
Answer: C,D
NEW QUESTION # 42
After an optimization meeting, an operator decides to double the transmitted power of an LTE cell. To test the effect of this change, a static test is performed before and after the change.
Which statement is correct in this scenario?
- A. The variation of the RSRP will depend on the bandwidth of the cell.
- B. The RSRP received by the UE is increased by three dB.
- C. The RSRP received by the UE remains stable.
- D. The RSRP received by the UE is increased by six dB.
Answer: B
NEW QUESTION # 43
Which two channel bandwidths are available in LTE? (Choose two.)
- A. 2.8 MHz
- B. 15 MHz
- C. 1.4 MHz
- D. 30 MHz
Answer: B,C
NEW QUESTION # 44
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. Activate the inter-frequency load balancing feature.
- B. Optimize the connected mode mobility parameters.
- C. Activate the TTI Bundling feature.
- D. Optimize the idle mode related parameters.
Answer: B,D
NEW QUESTION # 45
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 A downlink
- B. the Caller B uplink
- C. the Caller A uplink
- D. the Caller B downlink
Answer: A,B
NEW QUESTION # 46
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