Huawei H31-311 Exam Practice Test Instant Access

Question 1

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 2

WDM multiplexes the optical signals at multiple rates (wavelengths) over one fiber for transmission. The digital signals carried by these optical signals must have the same rate and data format.

ATRUE

BFALSE

Answer : B

Question 3

On the NMS, the NE performance monitoring time is set to () minutes and () hours,

A15, 12

B15, 24

C30, 12

D30, 24

Answer : B

Question 4

The section overhead of STM-4 is () bytes/frame.

A9*9*4

B9*8*4

C9*9*8

D9*8

Answer : B

Question 5

The U2000 can be flexibly interconnected with different third-party NMSs through northbound interfaces (NBIs), and provides information about physical inventory and alarms to the upper-layer NMSs.

ATRUE

BFALSE

Answer : A

Question 6

MSP is a network-level protection scheme. The MSP does not directly protect a service, and the MSP switching and restoration are not affected even if there is no service on the MSP ring.

ATRUE

BFALSE

Answer : A

Question 7

Which of the following statements about the 1+1 protection of cross-connect boards are correct? (Multiple Choice)

AThe source service board sends services to the active and standby cross-connect boards.

BAfter service cross-connections are completed, the active and standby cross-connect boards send the data of the active cross-connect board to the sink service board.

CThe sink service board can receive only the data from the active cross-connect board.

DThe buses of the two cross-connect modules work independently and do not interfere with each other.

EThe dual-bus system structure indicates that the service board performs dual feeding of data to the cross-connect side and selective receiving of the data on the cross-connect side.

FTwo cross-connect boards have the same configuartion. Service boards will selectively receive services from one of them based on the quality of services and status of cross-connect boards.

Answer : A, D, E, F

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