更新された検証済みのH31-311_V2.5問題集と解答には100%一発合格保証問題集はここ
合格Huawei Transmission H31-311_V2.5試験問題には200問があります
質問 87
Which of the following different types of ESC are divided according to the principles of implementation? (Multiple choice)
- A. None of the above
- B. Fixed frame structure DCC
- C. Pilot adjusts DCC
- D. insert DCC
正解: B,C
質問 88
Which of the following statements about basic LCAS functionality are correct? (Multiple choice).
- A. Failed members are protected and restored. .
- B. New network elements and links are automatically discovered.
- C. Provides a fault-tolerant mechanism to enhance the robustness of the virtual cascading function. .
- D. Bandwidth dynamically increases or decreases. .
正解: A,C,D
質問 89
Which of the following is photolayer tracking? (Multiple Choices)
- A. osc
- B. OCh
- C. OMS
- D. OTS
正解: A,B,C,D
質問 90
RSOH, MSOH, HPOH and LPOH implement the monitoring function in descending order of the monitoring fan country.
- A. Error
- B. True
正解: B
質問 91
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 slots 1 and 2 for the 8th VC-4
- B. VC-12 time slots for the second VC4 33 and 34
- C. VC-12 time slot 1 and 2 for the first VC4
- D. VC-12 time slots 1 and 2 for the fourth VC4
正解: D
質問 92
OTM nr.m consists of up to n " multiplexed channels and does not support non-channel-related overhead. The letter "r" indicates a decrease in functionality.
- A. Error
- B. True
正解: B
質問 93
EPL services use bandwidth exclusively on the line, which is very safe. Dedicated line applications for VIP customers
- A. Error
- B. True
正解: B
質問 94
In WDM systems, it is ideal to use a dielectric thin film filter (TFF) when using less than () wavelengths.
- A. 0
- B. 1
- C. 2
- D. 3
正解: B
質問 95
If a network port that supports autonegotiation is connected to a network port that does not support autonegotiation, you can interconnect in both half-duplex and full-duplex modes.
- A. Error
- B. True
正解: B
質問 96
When the working PQ1 board is oversized, the device will perform and the TFS protection will be reversed. Which of the following statements about the switching process are correct? (Multiple choice).
- A. cross-connect board checks the PQ1 board fault through the board status bus. .
- B. If the protection PQ1 board is normal, the cross-connection board sends a switching message to the D75S corresponding to the faulty PQ1 board through the switching control bus. .
- C. The protection PQ1 board receives and processes the services transmitted from the D75S board to the protection bus to complete the protection switching
- D. The D75S board responds to the switch message by transmitting the service to the shared protection bus and stopping sending the service to the tyrant PQ1 board
正解: A,B,C,D
質問 97
Which of the following bridges are used to forward data based on the MAC address and VLAN ID carried in the data?
- A. 802.11from
- B. 802.1d
- C. 802.1q
- D. 8021a
正解: C
質問 98
The rate of STM-1 is ()bit/s.
- A. 9*270*1*8000
- B. 9*270*8000
- C. 9*270*1'8000*16
- D. 9*270*1*8000*8
正解: D
質問 99
In Recommendation ITU-T G.692, the allowable channel frequencies are based on the reference frequency (), and the channel spacing can be 100 GHz, 50 GHz or 25 GHz.
- A. 192.1 Terahertz
- B. 1941 Terahertz
- C. 193.1 Terahertz
- D. 196.1 Terahertz
正解: C
質問 100
Which of the following is not the advantage of WDM?
- A. Future compatible with all optical switching networks
- B. Large capacity and transparent data transfer
- C. gold replacement for SDH equipment
- D. Easy to upgrade and maximize protection for existing investments
正解: C
質問 101
When the sender detects that the b6-b8 of the K2 byte is 110, it means that the sender has reported an alarm ().
- A. MS-AIS
- B. MS RIF
- C. R THE
- D. R LOF
正解: B
質問 102
After configuring PDH on a per-net element basis, the full trace cannot be searched. Which of the following is a possible cause? (Multiple choice)
- A. The tributary plate is not selected to be recited correctly.
- B. Passthrough is not configured at the intermediate site. Correct answer)
- C. The board selection is incorrect.
- D. The time period is not configured correctly 5.
正解: B,C,D
質問 103
Which of the following is the multiplexing method of SDH?
- A. flexible mapping and asynchronous multiplexing
- B. flexible mapping
- C. Flexible mapping and synchronization multiplexing
- D. Asynchronous multiplexing
正解: C
質問 104
The index is used to folio and delineate the starting position of VC-n in the corresponding AU or TU frame so that the receiving end can correctly remove the corresponding VC from the STM-N The VC and C packages are then separated into separate low-rate signals, such as PDH That is; Low-rate branch signals can be discarded directly from the STM-N signal
- A. Error
- B. True
正解: B
質問 105
When the fiber between node A and node B is disconnected, the RU on node B detects OTS_LOS alarm and will OTS_BDI The ru of the alert inserted into node A of node A forces reports OTS BDI alarms. The board reports och_SSF alarm on the downstream C node.
- A. error
- B. True
正解: B
質問 106
According to ITU-T's recommendations, the requirement that the MSP switching time should be within 50ms is conditional. For example, the number of net elements on the entire ring network is less than 16.
- A. True
- B. False
正解: B
質問 107
Which of the following local maintenance endpoints can be used to manage MSTP devices?
- A. U2000LCT
- B. All of the above
- C. U200IP LCT
- D. U2000WebLCT
正解: A
質問 108
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