H31-311_V2.5 Exam Dumps - HCIA-Transmission V2.5

When the ACT indicator of the SDH board is off, it means that the board has a hardware failure and cannot be used.

The rate of STM-1 is ()bit/s.

Automatic Laser Shutdown (ALS): When no optical signal is received, the ALS function automatically turns off the corresponding optical module. This feature protects field maintenance personnel.

Which of the following logic function blocks are involved in processing clock signals? (Multiple choice).

QinQ technology can be used when multiple users need to share the same VCTRUNK and use the same VLAN ID.

Which of the following device domains can be managed by U2000? (Multiple choice).

Which of the following statements about the clock source are incorrect?

The number of bit False blocks on each VC4 channel is detected by B3 on the receiving side. At the same time, the information is sent back to the sender via Q, and HP-REI and HP-FEBBE report on the sender.