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Total 59 questions
Exam Code: H31-311_V2.5                Update: May 16, 2025
Exam Name: HCIA-Transmission V2.5

Huawei HCIA-Transmission V2.5 H31-311_V2.5 Exam Dumps: Updated Questions & Answers (May 2025)

Question # 1

Which of the following is the functional unit that provides a high-speed signal interface and processes the corresponding signal?

A.

Cross-connecting unit

B.

Auxiliary units

C.

Tributary units

D.

Line units

Question # 2

The rate of SF64 and SL64 boards is STM54. Therefore, the two plates can be interconnected.

A.

True

B.

False

Question # 3

Which of the following is the maximum number of OSN3500 sub-racks that can be installed in a 2.2-meter cabinet?

A.

1

B.

2

C.

3

D.

4

Question # 4

Which of the following statements about the MST functional module is correct? (Multiple choice).

A.

MST is both the source and sink of MS. .

B.

MST implements BIP-8 statistical computation of B2 bytes.

C.

MST returns bit False messages, but does not return a specific number of bit Falses

D.

MST provides an E20 orderwire channel. .

Question # 5

Which of the following statements about signal label byte C2 are incorrect?

A.

The A.C2 byte is used to indicate the multiplexed structure and payload properties of the VC frame.

B.

The C2 section to be sent must match the C2 bytes to be received.

C.

If the check to C2 byte does not match, the LP-SLM alarm is reported in the corresponding VC-4 channel.

D.

C2=00H Jizong VC4 is not equipped.

Question # 6

Which of the following statements regarding the sequence of signal flows between the SDH interface and the cross-connecting unit is correct?

A.

SPI <> RST <> MST <> MSP<> MSA <> HPT

B.

SPI <> RST <> MSA<> MSP<> MST <> HPT

C.

SPI <> MST<> RST <> MSA <> MSP >HPT

D.

SPT<> MS <> MSA<> RST > MSP<> HPT

Question # 7

Which of the following is the main advantage of SDH? (Multiple choice).

A.

standard interface.

B.

Synchronous multiplexing.

C.

Powerful OAM

D.

High compatibility.

Question # 8

On OSN Series transmission devices, ethernet ports cannot access tagged and untagged frames at the same time

A.

True

B.

False

Question # 9

Which of the following communication protocols are used for DCN management of Huawei devices? (Multiple choice).

A.

HWECC

B.

TCP/IP

C.

FTP

D.

OSl

Question # 10

QinQ technology can be used when multiple users need to share the same VCTRUK and use the same VLAN ID.

A.

True

B.

False

Page: 1 / 6
Total 59 questions

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