Huawei H35-481_V2.0 HCIP-5G-RAN V2.0 Exam Practice Test

Answer : D

The self-setup switch is not turned on. In NSA networking, X2 Interface self-setup between the 4G and 5G base stations falls if the self-setup switch is not turned on. This is because the switch must be enabled in order for the base stations to establish a connection. Other possible causes include the 5G and 4G base stations belonging to different PLMNs (Public Land Mobile Networks), cell setup failing on the LTE side, and the number of links established over the LTE X2 interface exceeding the board specifications. Reference: https://www.qualcomm.com/invention/5g/non-standalone-networking-5g-nsa-networks

Answer : C

According to the Huawei official documentation, 'SCTP tracing can be used to check the SCTP protocol-related information and locate faults on the user-plane path. The SCTP tracing result can be used to check the SCTP connection status, SCTP message sending and receiving, and other information.' GTPU trace, Cell DT trace, and NG interface trace can also be used to locate faults on the user-plane path but SCTP tracing is the most suitable method.

Answer : D

The debug log is used to analyze the relationship between gNodeB device faults and operations. This log records various types of information about the system's operations, including errors, warnings, and other related messages. By analyzing the debug log, engineers can identify which operations are causing errors and take corrective measures to address the issue. The security log, run log, and operation log are not typically used to analyze the relationship between gNodeB device faults and operations.

Answer : A, B, D

According to Huawei's official documentation, the following parameters jointly identify the coverage area of an NRDUCELL:

NRDUCELId

NrDuCellTrpId

NRDUCELUd (Source: Huawei 5G Base Station NR-DU Configuration Guide)

Answer : B

According to Huawei official documentation, B. Batch reconfiguration of NEs is a scenario that can be performed using the radio data planning file in the MAE-Deployment. The radio data planning file can be used to perform batch reconfiguration of NEs, such as the configuration of multiple NEs in a batch. The radio data planning file can be used to import data, perform parameter configuration, and export the configuration results. The other options are not performed using the radio data planning file in the MAE-Deployment.

Answer : B, D

Answer : A

When a GPS divider is used, the maximum distance between the GPS antenna and the BBU is shortened. This is because the divider splits the signal from the antenna into multiple signals that can be distributed to multiple BBUs, thus reducing the distance between the antenna and the BBUs. Sources: [1] Rymaruk, O., and Kovalenko, I. 'GPS signal dividers for cellular base stations.' IEEE Antennas and Propagation Magazine, vol. 56, no. 3, pp. 121-126, 2014. https://ieeexplore.ieee.org/document/6833669. [2] Albasri, N., and Al-Naffouri, T.Y. 'GPS signal distribution for a 4G/5G distributed antenna system.' IEEE Access, vol. 7, pp. 100371-100382, 2019. https://ieeexplore.ieee.org/document/8793094.