Nov-2021 Huawei H31-311 Actual Questions and Braindumps
H31-311 Dumps To Pass Huawei Exam in 24 Hours - Fast2test
NEW QUESTION 109
The SL64 board can be used in an OSN 2500.
- A. FALSE
- B. TRUE
Answer: A
NEW QUESTION 110
The difference between a dispersion compensation fiber and a common fiber is that the dispersion compensation fiber has a negative dispersion coefficient at ( ).
- A. 1650 nm
- B. 800 nm
- C. 1550 nm
- D. 1310 nm
Answer: C
NEW QUESTION 111
Which of the following overhead bytes needs to be processed at an electrical regeneration site?
- A. TCM
- B. SM
- C. PM
- D. All of the above
Answer: D
NEW QUESTION 112
Which of the following are VLAN classification methods? (Multiple Choice)
- A. By port
- B. By protocol
- C. By subnet
- D. By MAC address
Answer: A,B,C,D
NEW QUESTION 113
Which of the following can be the center wavelengths of the pump sources in an EDFA? (Multiple Choice)
- A. 1510 nm
- B. 1480 nm
- C. 1310 nm
- D. 980 nm
Answer: B,D
NEW QUESTION 114
Which of the following is not a condition for triggering multiplex section protection (MSP)?
- A. The MS-AIS signal is detected.
- B. R-LOS is detected.
- C. R-LOF is detected.
- D. AU-AIS is detected.
Answer: D
NEW QUESTION 115
Which of the following logical functional modules are involved in processing clock signal? (Multiple Choice)
- A. SETS
- B. SPI
- C. MCF
- D. RST
Answer: A,B
NEW QUESTION 116
LCK insertion has priority over AIS insertion. That is, if a user configures LCK insertion and the conditions of automatic AIS insertion are met, LCK is inserted.
- A. FALSE
- B. TRUE
Answer: B
NEW QUESTION 117
When the LCAS function is used/ which of the following overhead bytes are used to transmit control information? (Multiple Choice)
- A. K2
- B. K4
- C. H4
- D. M1
Answer: B,C
NEW QUESTION 118
The pointer is used for alignment and indicates the start position of VC-n in the corresponding AU or TU frame. In this way, the receive end can correctly remove the corresponding VC from the STM-N, and then split the VC and C encapsulation to separate low-rate signals, such as PDH. That is, low-rate tributary signals can be directly dropped from the STM-N signal.
- A. FALSE
- B. TRUE
Answer: B
NEW QUESTION 119
Which of the following bytes in the regenerator section overhead are associated with R-OOF and R-LOF?
(Multiple Choice)
- A. A1
- B. A2
- C. B2
- D. B1
Answer: A,B
NEW QUESTION 120
RSOH, MSOH, HPOH, and LPOH implement monitoring functions in the descending order of monitoring scope.
- A. FALSE
- B. TRUE
Answer: B
NEW QUESTION 121
Optical supervisory channels are intended for the supervisory of WDM optical transmission systems. In ITU-T recommendations, 1510 nm wavelengths at a ( ) rate are preferentially used.
- A. 64 kbit/s
- B. 192 kbit/s
- C. 576 kbit/s
- D. 2Mbit/s
Answer: D
NEW QUESTION 122
Which of the following are the steps for multiplexing low-speed services into high-speed SDH services?
(Multiple Choice)
- A. Multiplexing
- B. Overhead insertion
- C. Mapping
- D. Alignment
Answer: A,C,D
NEW QUESTION 123
A 1510 nm optical supervisory channel can be effectively amplified after it passes an EDFA.
- A. FALSE
- B. TRUE
Answer: A
NEW QUESTION 124
For the (local) HA solution where the active and standby servers are deployed in the same place, which of the following platforms can be deployed? (Multiple Choice)
- A. SUSE Linux
- B. Solaris
- C. All of the above
- D. Windows
Answer: A,B
NEW QUESTION 125
Which of the following statements about an MSP ring are correct? (Multiple Choice)
- A. The number of nodes on an MSP ring cannot exceed 16.
- B. When multiple protection subnets occupy the same port on the same board, you must select "Resource Sharing".
- C. When creating a protection subnet, select SDH NEs only. Do not select REG or WDM NEs.
- D. "Assigned by VC4" means that different VC4s are assigned to different protection subnets to achieve MSP only in some channels.
Answer: A,B,C,D
NEW QUESTION 126
Which of the following are communication quality alarms? (Multiple Choice)
- A. Optical port loopback
- B. No login of an NE user
- C. NE communication interruption
- D. Loss of optical signals
Answer: C,D
NEW QUESTION 127
The STM-64 has () AU pointers.
- A. 0
- B. 1
- C. 2
- D. 3
Answer: B
NEW QUESTION 128
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. FALSE
- B. TRUE
Answer: B
NEW QUESTION 129
EPL services exclusively use ports and bandwidths, and different users may need to share resources. Which of the following methods can be used to isolate user data?
- A. VLANID
- B. MPLS label
- C. All of the above
- D. QinQ technology
Answer: C
NEW QUESTION 130
According to the formula of "ODUk rate = 239/(239-k) x STM-N frame rate", the ODU4 rate is equal to 239/235 x STM-N frame rate.
- A. FALSE
- B. TRUE
Answer: A
NEW QUESTION 131
Which of the following can be configured as the monitoring time of NE performance events?
- A. Same as the current time of the NE
- B. Earlier than the current time
- C. Later than the current time
- D. Any time
Answer: C
NEW QUESTION 132
In the system control unit, which of the following databases do not lose data after a power failure?
- A. FDB0
- B. MDB
- C. DRDB
- D. FDB1
Answer: A,B,C
NEW QUESTION 133
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