Latest Huawei H31-311_V2.5 PDF and Dumps (2024) Free Exam Questions Answers
Pass Your Huawei Transmission H31-311_V2.5 Exam on Dec 08, 2024 with 750 Questions
NEW QUESTION # 433
Which of the following descriptions about full-duplex Ethernet is wrong?
- A. Full-duplex fundamentally solves the conflict problem of Ethernet, and Ethernet bids farewell to CSMA/CD
- B. There is a limit on the maximum transmission distance
- C. Data can be received and sent at the same time
- D. The efficiency of transmitting data frames is greatly improved, and the maximum throughput reaches double the rate
Answer: A
NEW QUESTION # 434
Assume that two VC12 time slots need to be bound to VCTRUNK1 of the N2EFS4 board. When there are 8 V04 time slots on the N2EFS4 board, which of the following time slots meets the requirement?
- A. VC12 timeslots 1 and 2 of the first VC4
- B. Timeslots 1 and 2 of the eighth VC4 of VC-12
- C. Vc12 time slots 1 and 2 of the fourth vC4
- D. VC-12 timeslots 33 and 34 of the second C-4
Answer: C
NEW QUESTION # 435
Which of the following bytes can be used for ordenwire calls between two REG devices?
- A. E1
- B. Not above
- C. E1 and E2
- D. E2
Answer: A
NEW QUESTION # 436
On OSN Series transmission devices, ethernet ports cannot access tagged and untagged frames at the same time
- A. True
- B. False
Answer: B
NEW QUESTION # 437
After the network sends a fiber cut, which of the following alarms does not appear in a 1+1 linear multiplex section protection configuration?
- A. APS_INDI
- B. R_LOS
- C. HP_LOM
- D. MS_APS_INDI_EX
Answer: C
NEW QUESTION # 438
The only functional difference between OPSA and OPSB is that OPSA has () after the splitter, while OPSB does not.
Answer:
Explanation:
VOA
NEW QUESTION # 439
Which of the following types of Ethernet can be divided into? (Multiple choice)
- A. Fast Ethernet FE
- B. Standard Ethernet
- C. Gigabit Ethernet GE
- D. 10 Gigabit Ethernet 10GE
Answer: A,C,D
NEW QUESTION # 440
Automatic gain control (AGC) can solve the problem of increased optical power in multi-wavelength systems where the increase in wavenumber or decrease in derivative energy transfer affects normal operation.
- A. True
- B. False
Answer: A
NEW QUESTION # 441
Which of the following is the steps to multiplex a low-speed service into a high-speed SDH service? (Multiple choice).
- A. Overhead insertion
- B. Alignment
- C. Multiplexing
- D. Mapping
Answer: B,C,D
NEW QUESTION # 442
For a (local) HA solution where the active and standby servers are deployed at the same location, which of the following platforms can be deployed? (Multiple choice)
Answer:
Explanation:
B.C.
NEW QUESTION # 443
Which of the following are not passive optical devices? (Multiple choice)
- A. Grating
- B. Filter
- C. Optical switch
- D. Modulator
- E. Laser
Answer: D,E
NEW QUESTION # 444
When 172.17.15.0/24 is subnetted using an extra 4 bits, which of the following addresses are legal subnet addresses? (Multiple choice)
- A. 172.17.15.96
- B. 172.17.15.8
- C. 172.17.15.248
- D. 172.17.15.40
- E. 172.17.15.0
Answer: A,E
NEW QUESTION # 445
Which of the following layers define the protocols that control the network layer? The protocols at this layer apply to logical links, that is, end-to-end connections between two devices.
- A. Transport layer
- B. Data Link Layer
- C. Application layer
- D. Network layer
Answer: A
NEW QUESTION # 446
Which of the following is the steps to multiplex a low-speed service into a high-speed SDH service?
(Multiple choice).
- A. Overhead insertion
- B. Alignment
- C. Multiplexing
- D. Mapping
Answer: B,C,D
NEW QUESTION # 447
The dual-fiber ring topology consisting of three network elements is arranged in counterclockwise order as AB, CA and the service between C occupies the 48th VC-12 time slot of the first VC4 on the short path, and the service between B and C also occupies the 48th VC-12 time slot of the first VC-4 on the short path.
In this case, which of the following is the type of subnet that the ring protects?
- A. Bidirectional MSP ring
- B. Single-path protection ring
- C. All of the above
- D. SNCP ring
Answer: A
NEW QUESTION # 448
Optical module parameter "L-64.2" in the "2" indicates which of the following working windows?
- A. 1510tm
- B. 1550hm
- C. 1310 nm
- D. 880 nm
Answer: B
NEW QUESTION # 449
QinQ technology can be used when multiple users need to share the same VCTRUK and use the same VLAN ID.
- A. True
- B. False
Answer: A
NEW QUESTION # 450
The video system and transmission connection port in the base station is ().
Answer:
Explanation:
FE interface
NEW QUESTION # 451
Which of the following light sources has the best dispersion tolerance and stability?
- A. Mach-Zehnder modulates the light source
- B. EA modulates the light source
- C. Direct modulation of the light source
- D. None of the above
Answer: A
NEW QUESTION # 452
QinQ technology is a VLAN nesting technology. QinQ complies with the IEEE 802.1q recommendation and is also a VLAN extension technology.
- A. True
- B. False
Answer: B
NEW QUESTION # 453
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