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Latest Huawei H31-311 Free Exam Questions | SPOTO

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Question #1
For OSN6800 equipment, which of the following slots does not have an electrical layer cross-backplane bus?
A. Slot1
B. Slot9
C. Slot10
D. Slot17correct
View answer
Correct Answer: D
Question #2
If a bit error is detected in the B1 byte, which of the following alarms will be reported by the peer end?
A. MS-AIScorrect
B. RS-BBE
C. RS-FEBBE
D. Not reportingcorrect
View answer
Correct Answer: AD
Question #3
The SNCP switching speed can be improved if you classify the SNCP services that have the same source, sink, or route into groups.
A. TRUEcorrect
B. FALSE
View answer
Correct Answer: A
Question #4
When there is a Critical Error In Seconds (SES) in the PM portion of the ODUk layer, which of the following alarms is reported by NMS?
A. AODUk_PM_ES
B. BODUk_PM_SES
C. CODUk_PM_SESR
D. DODUk_PM_UAS
View answer
Correct Answer: B
Question #5
Linear MSP (LMSP) has two modes: 1+1 and 1:1. Extra services can be configured for the protection channel only in the 1:1 mode of LMSP.
A. TRUEcorrect
B. FALSE
View answer
Correct Answer: A
Question #6
Which of the following is not an advantage of using QinQ technology?
A. Solve the problem of increasingly scarce public network VLAN ID resources
B. Provide a simpler Layer 2 VPN solution
C. Different services can be distinguished by different levels of VLAN ID:
D. Solve the packet transmission delay problemcorrect
View answer
Correct Answer: D
Question #7
The dispersion coefficient is the delay difference caused by the optical wavelength signal passing through the unit length of optical fiber in the unit wavelength interval, so which of the following is the unit of the dispersion coefficient?
A. ps/nm
B. ps/km
C. ps/nm
D. ps/km
View answer
Correct Answer: C
Question #8
When a fiber cut test is performed on a normal MSP ring, which of the following alarms is reported? (Multiple Choice)
A. TU-AIS
B. R-LOScorrect
C. APSJNDIcorrect
D. BD STATUS
View answer
Correct Answer: BC
Question #9
The dispersion coefficient is the time delay difference caused by the optical wavelength signal passing through the unit length of optical fiber within the unit wavelength interval. Which of the following is the unit of the dispersion coefficient?
A. ps/nm
B. ps/km
C. ps/nm
D. ps/km
View answer
Correct Answer: C
Question #10
The SDH equipment can judge the quality of the clock signal according to the S 1 byte. The larger the value of S 1 is, the higher the quality of the corresponding clock is.
A. True
B. Falsecorrect
View answer
Correct Answer: B
Question #11
In terms of protection capability, which of the following topologies has the strongest protection capability?
A. Linear topology
B. Star topology
C. Tree topology
D. Ring topology
E. Mesh topologycorrect
View answer
Correct Answer: E
Question #12
Which of the following bridges is used to forward data based on the MAC address and VLAN ID carried in data?
A. 802
B. 802
C. 802
D. 802
View answer
Correct Answer: C
Question #13
If a network port that supports auto-negotiation is connected to a network port that does not support auto-negotiation, half-duplex may be used instead of full-duplex.
A. Truecorrect
B. False
View answer
Correct Answer: A
Question #14
The standard Ethernet frame length should not be less than 64 bytes. Which of the following factors cause this limitation? (Multiple Choice)
A. Minimum transmission distance
B. Maximum transmission distancecorrect
C. Working mechanism of conflict detectioncorrect
D. MAC address
View answer
Correct Answer: BC
Question #15
After the U2000 delivers configuration data to an NE, if the verification fails on the SCC board, the NE enters the installation state.
A. TRUE
B. FALSE
View answer
Correct Answer: A
Question #16
Regarding the processing of data frames by the data board port, which of the following is correct? (Multiple choice)
A. The port set as the tag Aware attribute can only discard the data without vlan tagcorrect
B. Hybrid ports can realize mixed transmission of tag and untag servicescorrect
C. When the Ethernet port is set to Tag aware, there is no need to set the default VLAN of the port ID, the default VLAN ID of the port needs to be set only when it is set to Access
View answer
Correct Answer: AB
Question #17
To which of the following levels does the U2000 network management belong?
A. Network-level management system
B. Subnet-level management systemcorrect
C. Network element level management system
D. Regional level management system
View answer
Correct Answer: B
Question #18
A 2.2m cabinet can accommodate up to which of the following OSN 2500 sub-racks?
A. 1
B. 2
C. 3correct
D. 4
View answer
Correct Answer: C
Question #19
When inserting LCK to the ODUk signal at the local end, what processing will the downstream station system not perform?
A. Report ODUk_PM_LCK alarmcorrect
B. Download ODUk_AIS information
C. Return ODUk_PM_BDI
D. Insert ODUk_PM_LCK alarmcorrect
View answer
Correct Answer: AD
Question #20
The advantages of WDM mainly include the following. (Multiple choice)
A. Large capacity, " transparent" transmission of datacorrect
B. The system is easy to upgrade, and the existing investment can be protected to the greatest extent when upgradingcorrect
C. Can fully replace SDH equipment
D. Compatible with future all-optical switching networkscorrect
E. High networking flexibility, economy and reliabilitycorrect
View answer
Correct Answer: ABDE
Question #21
The current sparse wavelength division multiplexing system generally works in the band from 1271nm to 1611nm. Which of the following is the channel spacing?
A. 10nm
B. 5nm
C. 20nmcorrect
D. 18nm
View answer
Correct Answer: C
Question #22
Which of the following descriptions of MPLS is incorrect? (Multiple choice)
A. MPLS: Multi-protocol Label Switching, a non-standardized routing and switching technology platformcorrect
B. P/PE: P (Provider) is the internal node of the MPLS network, and PE (Provider Edge) is the edge of the MPLS networkc
C. The operation of P->P is Ingress, which exchanges MPLS labelscorrect
View answer
Correct Answer: AC
Question #23
Which of the following is not included in the basic architecture of MPLS L2VPN?
A. AC
B. VC
C. Tunnel
D. S-VLANcorrect
View answer
Correct Answer: D
Question #24
Chromatic dispersion includes material dispersion and waveguide dispersion. Generally, only material dispersion and waveguide dispersion are considered in single-mode fiber.
A. Truecorrect
B. False
View answer
Correct Answer: A
Question #25
Pointer adjustment is related to which of the following?
A. Clockcorrect
B. Rate
C. Expenses
D. Scrambling
View answer
Correct Answer: A
Question #26
Which of the following situations can cause the board to reinsert the BDI maintenance signal to the upstream site? (Multiple choice)
A. The board reports R_LOScorrect
B. Report OTU2_DEG on the board
C. Report OTU2_LOF on the boardcorrect
D. ODU2_PM_LCKcorrect
View answer
Correct Answer: ACD
Question #27
When multiple users need to share the same VCTRUNK and use the same VLAN ID, the QinQ technology can be used.
A. TRUEcorrect
B. FALSE
View answer
Correct Answer: A
Question #28
Which of the following boards supports QinQ function?
A. EFT8
B. EGT2
C. EMS4correct
D. EMR2
View answer
Correct Answer: C
Question #29
The SNCP switching speed can be improved if you classify the SNCP services that have the same source, sink, or route into groups.
A. TRUE
B. FALSE
View answer
Correct Answer: A
Question #30
STM-64 has an () AU pointer.
A. A64
B. B1
C. C4
D. D16
View answer
Correct Answer: A

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