Huawei H31-311 Exam Questions Instant Access

Question 1

The clock unit can access an external clock source as the timing signal source of the system only through the external clock interface. In addition, it can output the processed clock and provide the clock source for other devices that require timing.

ATRUE

BFALSE

Answer : B

Question 2

Which of the following clock working modes support the ITU-T G.781 standard? (Multiple Choice)

ATracing

BHoldover

CFree-run

DMaster/Slave

Answer : A, B, C

Question 3

Which of the following is the multiplexing mode of SDH?

AFlexible mapping

BAsynchronous multiplexing

CFlexible mapping and asynchronous multiplexing

DFlexible mapping and synchronous multiplexing

Answer : D

Question 4

Which of the following working windows is indicated by "2" in the optical module parameter L-64.2"?

A880 nm

B1310 nm

C1550 nm

D1510 nm

Answer : C

Question 5

Which of the following statements about the EFS4 board are correct? (Multiple Choice)

AThis board has four FE ports.

BThis board supports Layer-2 switching.

CThis board must be used together with a processing board.

DThe board interface an LC interface.

Answer : A, B

Question 6

A PAUSE frame uses a reserved multicast address and is not forwarded by a bridge or switch, In this way, the PAUSE frame does not generate any additional information.

ATRUE

BFALSE

Answer : A

Question 7

When the LCAS function is used/ which of the following overhead bytes are used to transmit control information? (Multiple Choice)

AM1

BH4

CK2

DK4

Answer : B, D

Huawei HCIA-Transmission V2.0 H31-311 Exam Questions