Which of the following causes the radio unit to receive the channel RTWP/RSSI imbalance alarm? (Multiple choice)
A. CPRI interface failure
B. External interference of the main set or diversity antenna of the radio unit
C. The primary or diversity receive channel of the RF unit is faulty
D. RF unit hardware failure
正解:B,C
質問 2:
In the EPC network, the S-GW and the P-GW can be deployed together. Which of the following statements about the advantages of the combination is incorrect?
A. Compared with the split deployment, the unification deployment is reduced by one hop on the signaling plane and the user plane, reducing the processing delay of the node and improving the user experience.
B. S/P-GW unification deployment can simplify network deployment, reduce data configuration on S5 interfaces, and avoid interworking between devices from different vendors.
C. S/P-GW unification deployment can save 50% of hardware devices
D. S-GW/P-GW unification deployment helps reliability
正解:D
質問 3:
The installation position of the GPS antenna to broaden its view of the sky, no tall buildings around. GPS antenna upright angle should not be less than 90°.
A. False
B. True
正解:B
質問 4:
Which of the following interfaces on the UMPT board can be used for S1 interface transmission? (Multiple choice)
A. GE1
B. E1/T1
C. ETH
D. FE/GE0
正解:A,B,D
質問 5:
Which of the following transport bearer technologies is used in the transport protocol of the S1 interface?
A. E1/T1
B. IP
C. ATM
D. ATM/IP
正解:B
質問 6:
The TDS is enabled in the original BBU and the RRU type is RRU3151(e)-fae. You need to use the RRU3152-e to open the LTE single-mode site. This allows to share a BBU with the TDS.
A. False
B. True
正解:B
質問 7:
Which of the following is an MML command to query the number of users on the ENodeB?
A. DSP S1INTERFACE
B. DSP MME
C. DSP CELL
D. DSP SECTOR
正解:A
Oota -
本日、試験を受験し、無事で合格できました。
ありがとうございました!大体理解できたと思います!試験受かりました!