Free Huawei H31-311-ENU Exam Dumps Questions & Answers


Exam Code/Number:	H31-311-ENUJoin the discussion
Exam Name:	HCIA-Transmission(Huawei Certified ICT Associate-Transmission)
Certification:	Huawei
Free Question Number:	190
Publish Date:	Jan 10, 2026
# of views:	2443
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Total 190 questions

Question 1

An Ethernet private line service is set up between HI (HQ) and H2 (branch) of enterprise H, and five VC-12s are bound in the corresponding VCTRUNK. When one VC-12 fails, the Ethernet private line between HI and H2 is not interrupted.
Therefore, which of the following statements is correct?

A.The QinQ function is enabled on the ports used by the Ethernet private line service between H1 and H2.
B.The LCAS function is enabled on the ports used by the Ethernet private line service between H1 and H2.
C.The LCAS function is enabled on the VCTRUNK ports used by the Ethernet private line service between HI and H2.
D.The QinQ function is enabled on the VCTRUNK ports used by the Ethernet private line service between H1 and H2.

Question 2

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

A.15, 12
B.15, 24
C.30, 12
D.30, 24

Question 3

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

A.K4
B.M1
C.H4
D.K2

Question 4

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

A.C2=00H indicates that the VC-4 is unequipped.
B.If the C2 byte mismatch is detected, an LP_SLM alarm is reported in the corresponding VC-4 channel.
C.The C2 byte to be sent must match the C2 byte to be received.
D.The C2 byte is used to indicate the multiplexing structure of the VC frames and the payload property.

Question 5

The last 256 columns in the OTN frame structure are FEC areas, which are used for forward error correction.

A.FALSE
B.TRUE