H12-831_V1.0-ENU 試験問題を無料オンラインアクセス

The AS Path attribute is the private attribute of BGP. The if-match as-path-filter command is applicable only to BGP routes

• A.TRUE
• B.FALSE

On the OSPF network shown in the figure, the cost values of links are marked, and OSPF IP FRR is enabled on R1. Which of the following statements is false?

• A.If the link between R1 and SI is disconnected, Rl recalculates the optimal path to R3 and performs path switching instantly.
• B.If the link between R1 and SI is disconnected, R1 directly uses the backup path to forward packets to R3 because FRR is enabled on R1.
• C.If the link between R2 and SI is disconnected, R1 recalculates the optimal path to R3 and performs path switching instantly.
• D.If the link between R1 and SI is disconnected and you check neighbor information on R1, the neighbor relationship between R1 and R2 will instantly display Down.

On an MPLS network where LDP is used to establish LSPs, a transit node directly connected to the ingress node that sends a label request distributes labels to the ingress node only after receiving a label mapping message from the egress node. In this case, which of the following is the correct combination of the label advertisement mode and label distribution control mode?

• A.DU + independent
• B.DoD + independent
• C.DoD + ordered
• D.DU + ordered

A network engineer checks LLDP neighbor information on R1. The output is shown below.
Which of the following statements are true?
LLDP Output:
yaml
CopyEdit
< R1 > display lldp neighbor interface GE0/0/0
------------------------------------------------
GE0/0/0 has 1 neighbor(s):
Neighbor index: 1
Chassis type: MAC Address
Chassis ID: faed-ad04-0010
Port ID subtype: Interface Name
Port ID: GE0/0/0
System name: R2
System description: Huawei YunShan OS
Version 1.22.01 (AR8000 V100R002C200)
Copyright (C) 2021-2022 Huawei Technologies Co., Ltd.
HUAWEI AR8140-12G10XG
System capabilities supported: bridge router
System capabilities enabled: bridge router
Management address type: IPv4
Management address: 192.168.1.1
Expired time: 107s

• A.The sysname of the peer device is R2.
• B.The interface number of the peer device is GE0/0/0.
• C.The management IP address of the peer device is 192.168.1.1.
• D.The VLAN ID of the peer device is 1.

A network engineer provides a troubleshooting report after rectifying a fault . The actual network is simplified into the one shown in the figure, where:
* R1 and R2 both have OSPF enabled .
* R1 and R2 function as the gateways for PC1 and PC2, respectively .
Given this, which of the following statements are true?

Options:

• A.R1 can ping 192.168.1.21.
• B.PC1 and PC2 cannot ping each other.
• C.R1 can ping 192.168.1.22.
• D.R2 can ping 192.168.1.2.