H31-311-ENU Questions And Answers

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Exam Name: Huawei Certified Network Associate-Transmission

Updated: 2019-01-19

Q & A: 199

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Question No : 1

Optical monitoring channel is set up for the monitoring of WDM optical transmission system, ITU-T recommends perferably the use of 1510nm wavelength, the capacity of 2MHz/s.
A. True
B. False
Answer: B

Question No : 2

All bytes in the SDH frame structure will be scrambled.
A. True
B. False
Answer: B

Question No : 3

Which of the following steps will low-speed business to be multiplexed into the high-speed SDH business generally go through? (Multiple choice)
A. Mapping
B. Overhead insertion
C. Positioning
D. Multiplexing
Answer: ACD

Question No : 4

Which of the following elements does data communication network have in terms of equipment? (Multiple choice)
A. End Equipment
B. Transmission system
C. Switching equipment
D. Core equipment
Answer: ABC

Question No : 5

Dispersion coefficient is the delay inequality generated by optical wavelength signal in the unit wavelength interval through the unit length of optical fiber, then which of the following is unit of the dispersion coefficient?
A. ps/nm
B. ps/km
C. ps/nm.km
D. ps/km.nm
Answer: C

Question No : 6

SDH equipment can judge the quality of the clock signal according to S1 byte, the bigger S1 value is, the higher the corresponding clock quality is.
A. True
B. False
Answer: B

Question No : 7

Which of the following belongs to the main functions of U2000 network management?
A. Topology management
B. Performance management
C. Fault Maintenance
D. End-to-end service management
Answer: ABD

Question No : 8

How many 2M business board does OSN 7500 maximum support? Which of the following is correct?
A. 1
B. 2
C. 3
D. 4
Answer: D

Question No : 9

OSN 3500 branch business ability is strong, with 16 branch line slots, single sub-rack has 504 2M, 32 E4, 117 E3/DS3, and 132 STM-1e, providing STM-1/4/16/64 group rate.
A. True
B. False
Answer: A

Question No : 10

If the B1 byte detects an error code, then which of the following alarm will the opposite end report?
A. MS-AIS
B. RS-BBE
C. RS-FEBBE
D. don't report
Answer: D

Question No : 11

The frame structure of ODU4 is four times of ODU1.
A. True
B. False
Answer: B

Question No : 12

Which of the following is related to the pointer adjustment?
A. Clock
B. Rate
C. Overhead
D. Scrambling code
Answer: A

Question No : 13

Which of the following does the advantage of WDM mainly include? (Multiple choice)
A. Large capacity, the data "transparent" transmission
B. System upgrade easy, upgrade can maximally protect existing investments
C. can fully replace the SDH equipment
D. Compatible with future all-optical switching networks
E. High degree of networking flexibility, economy and reliability
Answer: ABDE

Question No : 14

Which of the following description about MPLS is not correct? (Multiple choice)
A. MPLS: Multi-protocol Label Switching, a non-standardized routing and switching technology platform
B. P/PE: P (Provider) is an MPLS network internal node, PE (Provider Edge) for the MPLS network edge
C. PE->P operates as Egress, and the MPLS label is added to the client signal
D. P->P operates as Ingress and exchanges MPLS labels
Answer: ACD

Question No : 15

Which of the following is the database that U2000 used on PC/WIN2003?
A. Sybase
B. Microsoft SQL Server 2000
C. Foxpro
D. DB2
Answer: B
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03 Jan, 2019

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23 Nov, 2018

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20 Oct, 2018

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28 Sep, 2018

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