Huawei HCIA-Transmission(Huawei Certified ICT Associate-Transmission) (H31-311-ENU) Free Practice Test
Question 1
The single-fiber bidirectional WDM system uses only one optical fiber to transmit optical signals in two directions at the same time. The optical signals in the two directions should be arranged at different wavelengths.
Correct Answer: B
Question 2
Which of the following service levels cannot be selected during service configuration?
Correct Answer: D
Question 3
When LMSP is configured, there are two switching modes: single-ended switching and dual-ended switching. The protection protocol does not need to be enabled for single-ended switching.
Correct Answer: B
Question 4
When an optical fiber between node A and node B is broken, the RU on node B detects the OTS_LOS alarm and inserts the OTS_BDI alarm to node A.
The RU on node A reports the OTS_BDI alarm. The line board on the downstream C node reports the OCh_SSF alarm.
The RU on node A reports the OTS_BDI alarm. The line board on the downstream C node reports the OCh_SSF alarm.
Correct Answer: B
Question 5
Linear MSP (LMSP) has two modes: 1+1 and 1:1. Extra services can be configured for the protection channel only in the 1:1 mode of LMSP.
Correct Answer: B
Question 6
In ITU-T G.692 recommendations, the allowed channel frequency is based on the reference frequency ( ) and the channel spacing can be 100 GHz, 50 GHz, or 25 GHz.
Correct Answer: D
Question 7
The PRBS can be used to test whether an SDH service is normal and whether the protection switching function is normal.
Correct Answer: B
Question 8
During the backup and restoration of the network configuration data of the U2000 using scripts, you can change the directory for saving the exported files.
Correct Answer: A
Question 9
Which of the following optical sources has the best dispersion tolerance and stability?
Correct Answer: D
Question 10
The management scope of an OMSn is the path from the input optical port on a multiplexer unit at the transmit site to the output optical port on a demultiplexer unit at the receive site, which is called an optical multiplexing section (OMS) path.
Correct Answer: B