HCIA-Transmission V2.5 - H31-311_V2.5 Exam Practice Test

Question 1

OTUk_LOF is an OTUk layer alarm, indicating OTUk frame loss. The FAS frame alignment overhead is detected. If the frame is out of sync for 5 ms, this alarm is reported. The alarm ends after the frame synchronization is restored for 5ms.

A. True

B. False

Correct Answer: B

Question 2

Which of the following is the common point between the two-fiber bidirectional multiplex segment shared protection ring and the four-fiber bidirectional multiplex segment protection ring?

A. Segment switching

B. Agreement required

C. Multiplex section protocol runs on the protection channel

D. Network capacity is KSTM -N

Correct Answer: B

Question 3

Which of the following businesses can support TPS protection? (Multiple choice)

A. E1

B. FE

C. T1

D. GE

Correct Answer: A,C

Question 4

Which of the following statements about pointer adjustment are correct? (Multiple choice)

A. Pointer adjustment is independent of the payload content

B. When the pointer is adjusted, the information payload in the information payload area will decrease

C. When the pointer is adjusted, the information payload in the information payload area will increase

D. When the pointer is not adjusted, the information payload in the information payload area will remain unchanged

Correct Answer: B,D

Question 5

The outer electrons of the bait ion have a three-level structure, among which the metastable energy level is which of the following?

A. E1

B. E2

C. E3

Correct Answer: B

Question 6

Which of the following is the protection method of TPS?

A. M:N protection

B. 1:1 protection

C. 1+1 Protection

D. 1:N protection

Correct Answer: D

Question 7

What does the optical layer overhead include? (Multiple choice)

A. OMS

B. ODUk

C. Och

D. OTS

Correct Answer: A,C,D

Question 8

U2000 network management supports multiple external interfaces. When connecting with the network management of other manufacturers' equipment, which of the following interfaces can be used?

A. MML

B. CORBA

C. QX

D. TL1

Correct Answer: B

Question 9

Which of the following descriptions about MS-OTN are wrong? (Multiple choice)

A. L1 layer implements switching based on Ethernet/MPLS-TP

B. LO layer implements input-based switching

C. L2 layer implements switching based on ODUK/VC

D. L3 layer implements switching based on TCP/IP

Correct Answer: A,C

Question 10

APS lossless protection switching provides dual-transmission and selective reception functions for fiber differential protection services, as well as end-to-end delay alignment functions for working and protection paths, thereby improving service reliability.

A. True

B. False

Correct Answer: A

Question 11

Refers to the bit used to align and indicate the corresponding AU or VCr so that the fast end can correctly remove the independent VC from the STMN, and then separate the VC and C package into a single low-rate signal, such as FDH. In other words, the rate tributary signal can be directly discarded from the STMN signal

A. True

B. False

Correct Answer: A

Question 12

The channel frequencies allowed in G.692 are based on a reference frequency of 193.1 THz, and the channel spacings are 100 GHz, 50 GHz, and 25 GHz.

A. True

B. False

Correct Answer: A

Question 13

If the virtual cascade group at one end of the equipment has LCAS enabled, but the other end has not enabled LCAS, the local end reports the LCAS_FOPR alarm.

A. True

B. False

Correct Answer: A

Huawei HCIA-Transmission V2.5 - H31-311_V2.5 Exam Practice Test

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