Huawei H31-311 Exam Questions Instant Access

Question 1

Both PDH and SDH have globally unified standards.

ATRUE

BFALSE

Answer : B

Question 2

The pointer is used for alignment and indicates the start position of VC-n in the corresponding AU or TU frame. In this way, the receive end can correctly remove the corresponding VC from the STM-N, and then split the VC and C encapsulation to separate low-rate signals, such as PDH. That is, low-rate tributary signals can be directly dropped from the STM-N signal.

ATRUE

BFALSE

Answer : A

Question 3

An unprotected chain consists of four NEs: NE1, NE2, NE3, and NE4. An end-to-end VC4 trail NE1---NE4 is created, and NE5 is added between NE2 and NE3 for capacity expansion. The original configuration remains unchanged, and no service is configured on NE5. In this case, the unprotected chain becomes NE1-NE2-NE5-NE3-NE4, and how many VC4 trails can be searched out?

Answer : C

Question 4

Which of the following statements about clock sources is incorrect?

AInternal clock sources have the lowest priority because of their low precision.

BGenerally, tributary clocks are not used as the clock sources of devices.

CThe same SSM protocol is selected for all NEs in a clock protection subnet.

DIf the standard SSM protocol is enabled, you need to set the clock source ID.

Answer : D

Question 5

The device IP addresses of the gateway NE and non-gateway NEs must be set in the same network segment.

ATRUE

BFALSE

Answer : B

Question 6

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 7

When a fiber cut test is performed on a normal MSP ring, which of the following alarms is reported?

(Multiple Choice)

ATU-AIS

BR-LOS

CAPSJNDI

DBD STATUS

Answer : B, C

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