[Jan-2022] Pass Huawei H31-311-ENU Tests Engine pdf - All Free Dumps
HCIA-Transmission(Huawei Certified ICT Associate-Transmission) Practice Tests 2022 | Pass H31-311-ENU with confidence!
NEW QUESTION 38
The TAG attribute cannot be set for the internal port VCTRUNK of the board on the NMS.
- A. TRUE
- B. FALSE
Answer: B
NEW QUESTION 39
Which of the following are the electrical-layer overheads of OTN? (Multiple Choice)
- A. ODUk
- B. OTUk
- C. OPUk
- D. OCh
Answer: A,B,C
NEW QUESTION 40
Which of the following are the main advantages of SDH? (Multiple Choice)
- A. Standard interfaces
- B. Synchronous multiplexing
- C. High compatibility
- D. Powerful OAM
Answer: A,B,C,D
NEW QUESTION 41
When you configure services on a per-NE basis, which of the following protection schemes does not require the subnet configuration before subsequent protection operations?
- A. MSP and SNCP
- B. MSP
- C. SNCP
- D. LMSP
Answer: C
NEW QUESTION 42
When the transmit end detects that the b6-b8 of the K2 byte is 110, it indicates that the () alarm is reported at the transmit end.
- A. R-LOF
- B. R-LOS
- C. MS-RDI
- D. MS-AIS
Answer: C
NEW QUESTION 43
When synchronization is performed on the U2000, the NE data that is the same as that on the U2000 is not uploaded to the U2000, and the data that exists on the U2000 but not on the NE is deleted.
- A. TRUE
- B. FALSE
Answer: B
NEW QUESTION 44
Which of the following alarm/event dumping modes are supported by the U2000? (Multiple Choice)
- A. Manual dumping
- B. Overflow dumping
- C. Automatic dumping
- D. Periodic dumping of alarm logs
Answer: A,B,D
NEW QUESTION 45
An unprotected chain consists of four NEs: NE1, NE2, NE3, and NE4. An end-to-end VC4 trail NE1-NE4 is created, and NE5 is added between NE2 and NE3 for capacity expansion. The original configuration remains unchanged, and no service is configured on NE5. In this case, the unprotected chain becomes NE1-NE2-NE5-NE3-NE4, and how many VC4 trails can be searched out?
- A. 0
- B. 1
- C. 2
- D. 3
Answer: C
NEW QUESTION 46
If the overhead bytes pass through the backplane bus between two slots, the two slots are called paired slots. Paired slots implement automatic transparent transmission of overhead bytes, such as (), (), and ( ). This improves MSP switching performance and protects DCC communication with other NEs even if the SCC board on the local NE is offline. (Multiple Choice)
- A. E1 byte
- B. B1 byte
- C. K byte
- D. D byte
Answer: A,C,D
NEW QUESTION 47
A MAC address consists of 46 bits and is globally unique.
Which of the following is the meaning of the MAC address whose eighth bit is 1?
- A. Bicast address
- B. Unicast address
- C. Broadcast address
- D. Multicast address
Answer: D
NEW QUESTION 48
Manual configuration will clear data on the NE side.
- A. TRUE
- B. FALSE
Answer: A
NEW QUESTION 49
MSP is a network-level protection scheme. The MSP does not directly protect a service, and the MSP switching and restoration are not affected even if there is no service on the MSP ring.
- A. TRUE
- B. FALSE
Answer: A
NEW QUESTION 50
Which of the following is the functional unit that provides the interfaces related to the orderwire phone and serial data for the system?
- A. Line unit
- B. Tributary unit
- C. Auxiliary unit
- D. Cross-connect unit
Answer: C
NEW QUESTION 51
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
Answer: A
NEW QUESTION 52
When bit errors are detected in the B2 byte, which of the following alarms is reported by the peer end?
- A. MS-FEBBE
- B. MS-AIS
- C. MS-BBE
- D. RS-BBE
Answer: A
NEW QUESTION 53
An optical amplifier unit compensates for line loss and extends transmission distance. Connecting multiple optical amplifier units in cascading mode can infinitely extend transmission distance of a system.
- A. TRUE
- B. FALSE
Answer: B
NEW QUESTION 54
Which of the following is the meaning of SFD in the Ethernet frame structure?
- A. Start frame delimiter
- B. Frame check sequence
- C. Preamble
- D. Payload
Answer: A
NEW QUESTION 55
Forced switching, fiber cut switching, manual switching, and exercise switching are in the descending order of priority.
- A. TRUE
- B. FALSE
Answer: A
NEW QUESTION 56
The PRBS can be used to test whether an SDH service is normal and whether the protection switching function is normal.
- A. TRUE
- B. FALSE
Answer: A
NEW QUESTION 57
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