Free Huawei H31-311_V2.5 Exam Dumps Questions & Answers

Which of the following is the step for China to multiplex 2M into AUG?

• A.  C-12>VC-12->TU-12->TUG-2->VC-3->AU-4->AUG
• B.  C-12->VC-12->TU-12->TUG-2->TUG-3->VC-4->AU-4->A0G
• C.  C-12->VC-12->TU-12->VC2->TUG-2->FUG-3->AU-4->AUG
• D.  C-12->VC-12->TU-12->TUG-2->VC-3->TUG-3->AU-4->AUG

Which of the following statements about signal label byte C2 is wrong?

• A.  The C2 byte is used to indicate the multiplexing structure and payload attributes of the VO frame
• B.  C2=00H means VC-4 is not equipped
• C.  If a C2 byte mismatch is detected, an LP SLM alarm is reported in the corresponding VC-4 channel
• D.  The C2 byte to be sent must match the C2 byte to be received

In a small network, the function of an OptiXtrans DC908 is equivalent to that of a high-density electrical layer device FOADM + OLA.

• A.  False
• B.  True

In the OLT+ONU combined networking mode, OLT mainly plays the role of (), so the OLT equipment is required to have good performance and be able to provide sufficient bus bandwidth.

The main causes of bit errors are () and () of the transmission system.