Huawei HCIA-Transmission(Huawei Certified ICT Associate-Transmission) - H31-311-ENU 模擬練習
OChr means that the electrical supervisory technology is used.
正解: B
After PDH services are configured on a per-NE basis, a complete trail cannot be searched out.
Which of the following are possible causes? (Multiple Choice)
Which of the following are possible causes? (Multiple Choice)
正解: B,C,D
The difference between a dispersion compensation fiber and a common fiber is that the dispersion compensation fiber has a negative dispersion coefficient at ().
正解: B
When the transmit end detects that the b6-b8 of the K2 byte is 110, it indicates that the () alarm is reported at the transmit end.
正解: C
Which of the following communication protocols are used for DCN management on Huawei devices? (Multiple Choice)
正解: A,B,D
In the Windows operating system, the log files of the U2000 program are stored in the () directory of the U2000 installation drive.
正解: D
Which of the following is the functional unit that provides the interfaces related to the orderwire phone and serial data for the system?
正解: D
In MSP networking, when optical fibers are connected between sites, the east optical board of a site is connected to the west optical board of the downstream site, and these sites are connected in sequence to form a ring. In this case, the direction from the east optical board of a site to the west optical board of the downstream site is the major ring direction, and the direction that the ring is formed is the service direction.
正解: A
On the NMS, the NE performance monitoring time is set to ( ) minutes and ( ) hours.
正解: A
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.
正解: B
When a VLAN-based service type is configured, which of the following functions must be enabled on the port?
正解: C
Which of the following are the device-level protection schemes of SDH products? (Multiple Choice)
正解: A,B,C,D
Which of the following operations may interrupt NE services? (Multiple Choice)
正解: A,B
Which of the following alarm/event dumping modes are supported by the U2000? (Multiple Choice)
正解: B,C,D
An optical amplifier unit compensates for line loss and extends transmission distance. Connecting multiple optical amplifier units in cascading mode can infinitely extend transmission distance of a system.
正解: A