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Huawei H31-311_V2.5 (HCIA-Transmission V2.5) Certification Exam is designed for individuals who specialize in the field of transmission network engineering. HCIA-Transmission V2.5 certification exam is ideal for those who want to showcase their skills and knowledge in the latest transmission technologies and solutions. H31-311_V2.5 exam is designed to validate the candidates' skills in various aspects such as network planning, design, optimization, maintenance, and troubleshooting.
NEW QUESTION # 427
The standard Ethernet frame length should be no less than 64 bytes, which is determined by the working mechanism of () and collision detection.
Answer:
Explanation:
Carrier Sense Multiple Access
NEW QUESTION # 428
From the perspective of single board implementation, what are the main types of ESC? (Multiple choice)
- A. Fixed frame structure DCC
- B. Top adjustment DCC
- C. Insert DCC
Answer: A,B,C
NEW QUESTION # 429
What does the optical layer overhead include? (Multiple choice)
- A. ODUk
- B. OMS
- C. OTS
- D. Och
Answer: B,C,D
NEW QUESTION # 430
Which of the following descriptions about the MD02 board is wrong?
- A. The service types that can be accessed or output on the WDM side are OTU4 or OTUC2
- B. The optical signal on the wavelength division side is adjustable within the 120 wavelength range of the ultra-wide C-band 50GHZ interval, supporting Flex Grid
- C. The board supports relay mode.
- D. The service type that can be accessed by the client is 100GE or OTU4
Answer: B
NEW QUESTION # 431
In the network interface of OTN, the network interface within the same operator is the intra-domain interface, which is further divided into the interface between equipment from different manufacturers, IaVI, and the interface within the subnet of equipment from the same manufacturer, IrVI, according to the different equipment manufacturers.
- A. True
- B. False
Answer: B
NEW QUESTION # 432
When the 80-wavelength OTM site uses M40V for wave combining, it is also necessary to configure an ITL board.
- A. True
- B. False
Answer: A
NEW QUESTION # 433
In the Windows operating system, the log files of the U2000 program are stored in the () directory of the U2000 installation disk.
- A. U2000/server/log
- B. U2000/Customer
- C. U2000/client/log
- D. U2000/Server
Answer: A
NEW QUESTION # 434
When the sender detects that b6-b8 of the K2 byte is 110, it means that the sender reports a () alarm.
- A. MS-AIS
- B. MS-RDI
- C. R-LOS
- D. R-LOF
Answer: B
NEW QUESTION # 435
Which of the following is the default WTR time for MSP switching?
- A. 15 minutes
- B. 10 minutes
- C. 12 minutes
- D. 6 minutes
Answer: B
NEW QUESTION # 436
How many management unit pointers are there in the STM-64 frame structure?
- A. 9+64*8
- B. 0
- C. 9+9*64
- D. 9*64
Answer: D
NEW QUESTION # 437
In the SDH optical synchronous transmission system, which of the following bytes is used to transmit the quality and usage information of the clock source?
- A. N1
- B. G1
- C. S1
- D. M1
Answer: C
NEW QUESTION # 438
Which of the following descriptions of OTM-nm and OTM-nr.m optical layer interfaces of OTN is wrong?
- A. r means that some functions of the OTM have been removed. Here, it means that the oSC function has been removed.
- B. n represents the number of waves carried at maximum capacity
- C. OTM-nr.m plus osc signal becomes OTM-nm
- D. m represents the rate, and its value range is 01, 2, 3
Answer: D
NEW QUESTION # 439
The multi-frame loaded 2M signal is the information of which time period?
- A. 125us
- B. 500ms
- C. 500us
- D. 125ms
Answer: C
NEW QUESTION # 440
Which of the following clock operating modes supports the ITU-T G.781 standard? (Multiple choice).
- A. Tracking
- B. Master/Slave
- C. Hold
- D. Self-curved running
Answer: A,C,D
NEW QUESTION # 441
Which of the following alarms will be reported when performing a fiber cut test on a common MSP ring? (Multiple choice)
Answer:
Explanation:
B.C.
NEW QUESTION # 442
Which of the following options belong to nonlinear effects? (Multiple choice)
- A. Raman scattering
- B. Self-Phase Modulation Example
- C. Four-wave mixing
- D. Dispersion
Answer: A,B,D
NEW QUESTION # 443
When the optical cable is laid by traction, the main traction force should be applied to the () of the optical cable.
Answer:
Explanation:
Strengthening components
NEW QUESTION # 444
For alignment; Indicates the starting position of VC-n in the corresponding AU or TU frame. * This way: The receiver can correctly remove the corresponding VC from STM-N, and then The VC and C packages are separated into separate low-rate signals, such as PDH, which means that the low-rate path signal can be dropped directly from the STM-N signal.
- A. True
- B. Error
Answer: A
NEW QUESTION # 445
The comb filter is an active optical device whose main function is to couple or separate odd waves and even waves in the same band.
- A. True
- B. False
Answer: B
NEW QUESTION # 446
Suppose 2 VC-12 time slots need to be bound to the VCTRUNK1 of the N2EFS4 board. When there are 8 VC4 slots on the N2EFS4 board, which of the following slots meets the requirements?
- A. VC-12 time slot 1 and 2 for the first VC4
- B. VC-12 time slots 1 and 2 for the fourth VC4
- C. VC-12 time slots for the second VC4 33 and 34
- D. VC-12 Time slots 1 and 2 for the 8th VC-4
Answer: B
NEW QUESTION # 447
Some SNCP protection switching conditions are default, such as AUAIS and TUAS. Other conditions are optional, such as HP-TIM and HP-SLM. Optional conditions can be flexibly set according to the service level.
- A. True
- B. False
Answer: A
NEW QUESTION # 448
What are the main advantages of WDM? (Multiple choice)
- A. Ultra-large capacity, "transparent" data transmission
- B. Compatible with future all-optical switching networks
- C. High networking flexibility, economy and reliability
- D. The system is easy to upgrade and can protect existing investments to the greatest extent possible during the upgrade
- E. Can completely replace SDH equipment
Answer: A,B,C,D
NEW QUESTION # 449
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