最新H31-311_V2.5合格保証試験問題集には正確で最新な問題があります
H31-311_V2.5試験ブレーン問題集で学習注釈と理論
質問 # 114
Which of the following is the meaning of SFD in the Ethernet frame structure?
- A. Preamble
- B. Frame check sequence
- C. start frame delimiter
- D. Payload
正解：C
質問 # 115
In the case of a 1+1 linear MSP, which of the following switching modes does not require the APS protection protocol full (multiple choice) to be enabled
- A. Single-ended reply mode (correct case management).
- B. Single-ended non-reply pattern
- C. Double-ended reply mode
- D. Double-ended non-reply mode
正解：A、B
質問 # 116
In WDM systems, it is ideal to use a dielectric thin problem filter (TFF) when using less than () wavelengths.
- A. 0
- B. 1
- C. 2
- D. 3
正解：A
質問 # 117
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：A
質問 # 118
In a 2.5GMSP ring consisting of four MSTP sites, which of the following statements about alarm reports is correct when a protection switchover occurs?
- A. Report APS-INDI alarms on the board.
- B. Report APS-INDl alerts on the system dashboard.
- C. APS-INDI alarms are reported on the xCS board. .
- D. PS Alarms are reported on the tributary board.
正解：C
質問 # 119
Frame-Mapped GFP (GFPF> is a processing mode that targets data encoding blocks such as Fibre Channel and ESCON.
- A. True
- B. False
正解：B
質問 # 120
NE A and NE B are adjacent NE
If B3 and low-order errors occur in the A->B direction, and B1, B2, B3, and low-order errors occur in the B->A direction, it is caused by Which of the following performance events does NEA report? (Multiple choice).
- A. MSFEBBE
- B. RSFEBE
- C. MSBBE
- D. HPFEBBE
- E. RSBEE
- F. HPBBE
正解：C、D、E、F
質問 # 121
During service configuration, which of the following service levels cannot be selected?
- A. vC4
- B. VC8
- C. VC12
- D. VC3
正解：B
質問 # 122
The AAC address consists of 46 bits and is globally unique
Which of the following - is the meaning of the eighth-digit MAC address with 1?
- A. Multicast address
- B. Broadcast address
- C. Double-click the address
- D. unicast address
正解：A
質問 # 123
Which of the following layers define the protocols that control the network layer? The protocol for this layer applies to logical links, i.e. end-to-end connectivity between two devices.
- A. Application layer
- B. Transport Layer
- C. Data link layer
- D. Network layer
正解：B
質問 # 124
Which of the following is the maximum number of OSN3500 sub-racks that can be installed in a 2.2-meter cabinet?
- A. 0
- B. 1
- C. 2
- D. 3
正解：A
質問 # 125
Which of the following is not an EVPLAN feature?
- A. bandwidth sharing
- B. Multipoint to multipoint topology
- C. point-to-point, and point-to-multipoint topologies
- D. Forwarding based on MAC address
正解：C
質問 # 126
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. The protection PQ1 board receives and processes the services transmitted from the D75S board to the protection bus to complete the protection switching
- B. 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
- C. cross-connect board checks the PQ1 board fault through the board status bus. .
- D. 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. .
正解：A、B、C、D
質問 # 127
Fiber loss includes bending loss, absorption loss and scattering loss.
- A. True
- B. False
正解：B
質問 # 128
Which of the following statements about the clock source are incorrect?
- A. Select the same SSM co-editor for all NE in the clock protection subnet
- B. If the difficultY SSM protocol is enabled, you need to set the clock source ID to correct the answer.
- C. The internal clock source has the lowest priority due to low accuracy.
- D. Typically, a branch clock is not used as a clock source for a device.
正解：B
質問 # 129
What of the following operations may interrupt the network element service? (Multiple choice).
- A. search protects the subnet
- B. Download the network metadata
- C. Activate the trail
- D. Look for trails
正解：B、C
質問 # 130
In the system control unit, which of the following databases does not lose data after a power failure? (Multiple choice).
- A. MDE
- B. FDB1
- C. DRDB
- D. FDB0
正解：B、D
質問 # 131
When using a script to back up U2000 data, the backup speed is fast because the backup file is small.
- A. True
- B. False
正解：B
質問 # 132
QinQ technology can be used when multiple users need to share the same VCTRUK and use the same VLAN ID.
- A. True
- B. Error
正解：A
質問 # 133
Which of the following is the feature of TCM overhead in ODUk signals?
- A. Path trace identifier overhead
- B. In-line connection monitoring overhead
- C. General communications and communication overhead
- D. Channel oversight fees
正解：B
質問 # 134
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