Huawei H31-311 Exam Practice Test Instant Access

Question 1

The SP3D board supports 63 El services.

ATRUE

BFALSE

Answer : B

Question 2

The error correction capability of FEC is measured with the encoding gain. Which of the following statements about the encoding gain is incorrect?

AWhen the BER is constant, the OSNR saved by the correction encoding is called encoding gain.

BThe error correction capability of FEC increases with the encoding gain.

CThe encoding gain of the inband FEC is larger than that of the outband FEC.

DThe encoding gain of AFEC is larger than that of FEC.

Answer : C

Question 3

Which of the following statements about an MSP ring are correct? (Multiple Choice)

AThe number of nodes on an MSP ring cannot exceed 16.

BWhen creating a protection subnet, select SDH NEs only. Do not select REG or WDM NEs.

CWhen multiple protection subnets occupy the same port on the same board, you must select 'Resource Sharing'.

D'Assigned by VC4' means that different VC4s are assigned to different protection subnets to achieve MSP only in some channels.

Answer : A, B, C, D

Question 4

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

Question 5

The management scope of an OMSn is the path from the input optical port on a multiplexer unit at the transmit site to the output optical port on a demultiplexer unit at the receive site, which is called an optical multiplexing section (OMS) path.

ATRUE

BFALSE

Answer : A

Question 6

Which of the following alarm/event dumping modes are supported by the U2000? (Multiple Choice)

AManual dumping

BAutomatic dumping

COverflow dumping

DPeriodic dumping of alarm logs

Answer : A, C, D

Question 7

Which of the following are the main advantages of SDH?

(Multiple Choice)

AStandard interfaces

BSynchronous multiplexing

CPowerful OAM

DHigh compatibility

Answer : A, B, C, D

Huawei HCIA-Transmission V2.0 H31-311 Exam Practice Test