Latest [Jan 28, 2026] Huawei H31-311_V2.5 Exam Practice Test To Gain Brilliante Result
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NEW QUESTION # 397
AAC address consists of 46 bits and is globally unique. Which of the following is the meaning of a MAC address with the eighth bit being 1?
- A. Multicast address
- B. Broadcast address
- C. Unicast address
- D. Double-click the address
Answer: A
NEW QUESTION # 398
Dynamic PW refers to a PW established through a signaling protocol. Currently, the main PW signaling protocol is RSVP-TE.
- A. True
- B. False
Answer: B
NEW QUESTION # 399
A subnet mask is a 32-bit address consisting of a string of 1s followed by a string of 0s, such as:
255.255.0.255 is a valid subnet mask.
- A. True
- B. False
Answer: B
NEW QUESTION # 400
Forced switching, fiber switching, manual switching and motion switching are in descending order of priority.
- A. True
- B. False
Answer: A
NEW QUESTION # 401
In addition to positioning, the pointer can also accommodate differences in frame rate to a certain extent.
- A. True
- B. False
Answer: A
NEW QUESTION # 402
The scope of management of OMSn is the path from the input optical port on the multiplexer unit of the sending site to the output optical port on the multiplexer unit of the receiving site, called the optical multiplexing segment (OMS) path.
- A. True
- B. False
Answer: A
NEW QUESTION # 403
Which of the following are communication quality alerts? (Multiple choice)
- A. NE Communications
- B. Loss of optical signal
- C. No user logged in to the network element
- D. Optical port loopback
Answer: A,B
NEW QUESTION # 404
Which of the following is not a nonlinear effect?
- A. Self-Phase Modulation (SPM)
- B. Dispersion
- C. Raman scattering
- D. Four Wave Mixing (FWMM)
Answer: B
NEW QUESTION # 405
Which of the following is not a non-linear effect?
- A. PMD
- B. FWM
- C. SPM
- D. SRS
Answer: A
NEW QUESTION # 406
Which of the following device domains can be managed by U2000? (Multiple choice)
- A. Wireless Devices
- B. Data communication equipment
- C. Transport equipment
- D. Access Device
Answer: A,B,C,D
NEW QUESTION # 407
The rate of STM-0 is 51.84Mbit/s; (STM-0 is used for digital microwave).
- A. True
- B. False
Answer: A
NEW QUESTION # 408
The standard Ethernet frame length should not be less than 64 bytes Which of the following factors contribute to this limitation? (Multiple choice).
- A. Maximum transmission distance
- B. How conflict detection works
- C. Minimum transmission distance
- D. MAC address
Answer: A,B
NEW QUESTION # 409
Which of the following features must be enabled on the port when configuring a VLAN-based service type?
- A. Broadcast suppression
- B. Enter the test
- C. Auto-negotiation mode
- D. Flow Control
Answer: B
NEW QUESTION # 410
Which of the following descriptions about the Ethernet frame structure is wrong?
- A. The standard Ethernet frame length should be no less than 64 bytes
- B. Frames with a type field value of 0x0806 represent IP protocol frames
- C. SFD: Start of Frame Delimiter, used to inform the receiving end that the next byte is the beginning of the frame
- D. FCS: Frame Check Sequence, length is 4 bytes
Answer: B
NEW QUESTION # 411
When the switch receives a data frame, it searches the MAC forwarding table based on the destination MAC address of the data frame. The result of the search is one or a group of ports. Based on the result of the search, the data packet is sent to the sending queue of the corresponding port.
- A. True
- B. False
Answer: A
NEW QUESTION # 412
Which of the following alarms will not trigger an AU-AIS alarm?
- A. R_LOS
- B. MS_AIS
- C. B2_EXC
- D. AU_LOP
Answer: D
NEW QUESTION # 413
In which ITU-T recommendation is the OTN frame structure defined?
- A. G.709
- B. G.694
- C. G.975
- D. G.652
Answer: A
NEW QUESTION # 414
Which of the following is protected by the channel protection ring?
- A. Fiber Optic
- B. Business
- C. Monitoring Channel
- D. Equipment
Answer: B
NEW QUESTION # 415
Four network elements form an STM-4 bidirectional multiplex section protection ring. Which of the following is the maximum service capacity of the network?
- A. 63 2M
- B. 252 2M
- C. 1008 2M
- D. 504 2M
Answer: D
NEW QUESTION # 416
Which of the following are the main functions of U2000 network management? (Multiple choice)
- A. Fault maintenance
- B. Performance Management
- C. Topology management
- D. End-to-end business management
Answer: B,C,D
NEW QUESTION # 417
Which of the following VLAN numbers can be provided by QINQ technology?
- A. 4095*4095
- B. 4096*1024
- C. 1024*1024
- D. 0
Answer: A
NEW QUESTION # 418
Which of the following is a VLAN classification method? (Multiple choice)
- A. By agreement
- B. By MAC address
- C. Through the port
- D. By subnet
Answer: A,B,C,D
NEW QUESTION # 419
Which of the following statements about the EFS4 board are correct? (Multiple choice).
- A. The board has four FE ports. .
- B. The plate must be used with the processing plate.
- C. The board supports three layers of text exchange. .
- D. The board interface is the LC interface.
Answer: A,C
NEW QUESTION # 420
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