Which of the following are true about an SDH network?
A. The NMS communicates with a gateway NE using the OSPF protocol.
B. NEs communicate with each other over ECCs.
C. ECC communication is implemented by the D byte.
D. The maximum DCC rate is 192 Kbit/s.
E. By default, Huawei OptiX equipment uses Dl to D3 bytes for DCC communication. After ASON is
enabled, the D4 to D12 bytes can function as inband control channels to transmit control information for the control plane.
On a chain network, if the SCC board on an intermediate station becomes faulty and the line boards of the station are installed in paired slots, which of the following methods can be used to ensure normal ECC communication between the other stations?
A. Reseat the faulty SCC board.
B. The D byte can automatically pass through, because a protection overhead bus is available between the paired slots. Therefore, no extra operation is required.
C. Remove the faulty SCC board.
D. Delete the faulty SCC board on the NMS.
Which of the following indicates a negative AU pointer justification?
A. Three bytes after H3
B. Three H3 bytes of AU-FTR
C. Three bytes before H3
D. None of the above
According to ITU-T standards, what is the value of SSMB of a slave clock at local exchange?
A. 0010
B. 0100
C. 1000
D. 1011
After the alarm inversion function is enabled, board alarm status, including alarm indicators, will change, and the alarm status data on the NE and on the NMS will be updated accordingly.
A. TRUE
B. FALSE
When end-to-end trails fail to be created due to cross-connection conflicts, the NMS displays the conflicting cross-connections and conflict causes. If you delete the conflicting trails, services are not affected.
A. TRUE
B. FALSE
NG-SDH equipment supports MS-shared protection. Which of the following are false about timeslot mapping between the working path and protection path?
A. Working path 2: 17#VC-4~20#VC-4; Protection path 2: 49#VC-4~52#VC-4
B. Working path 1: l#VC-4~ll#VC-4; Protection path 1: 33#VC-4~43#VC-4
C. Working path 2: 4#VC-4~7#VC-4; Protection path 2: 9#VC-4~12#VC-4
D. Working path 1: l#VC-4~4#VC-4; Protection path 1: 5#VC-4~8#VC-4
What path levels are available in an NG-SDH system?
A. vc-11
B. vc-12
C. vc-3
D. VC-4
E. VC-4-XC (X = 4, 8, 16, 64)
Which of the following parameters can uniquely identify an ASON NE in an ASON domain?
A. NEID
B. NE IP address
C. NEID
Which of the following are false about software installation on the PC that runs the NMS?
A. Ensure that anti-virus software is installed on the PC.
B. Game software can be installed after anti-virus software.
C. You can access the Internet on the PC.
D. Regular upgrade is not needed for the anti-virus software.
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