Which of the following will not cause the VRRP backup group to flap?

• A.both endsVRRPBackup group preemption delay configuration is inconsistent
• B.BackupDevice Interface Packet Loss
• C.transmissionVRRPLink flapping of advertisement packets
• D.the time interval of the notification message is too small

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[According to this picture, Peimen can judge?
cR3>display ipv6 routing-table protocol isis

• A.R3The device type must beLevel-1
• B.unable to judgeR3type of device
• C.R3The device type must beLevel-2
• D.R3The device type must beLevel-1-2

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During the test phase of the cutover, the criteria to indicate that the test has been completed are:

• A.IPThe configuration view result of the device is normal as the standard
• B.Test that the network service is normal as the standard
• C.The upper-layer application service test carried by the network is normal as the standard

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The cutover risk assessment mainly considers which of the following aspects?

• A.time of risk
• B.loss from risk
• C.Scope of Risk Impact
• D.Location of key risk points

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Part of the configuration of R1 is as follows. Which statement about OSPF on R1 is correct?
ospf 1 router-id 172.16.1.1
area 0.000
network 10.1.12.1 0.0.0.0
network 10.1"3"0.0.0.0
network 172.16/1 1 0.0.0.0
ospf 2 vpn-instance tt
area QQO.O
network 10J J 1 0.000

• A.process1and process2ofOSPF-LSDBits area0InsideLSAexactly the same
• B.process1and process2ofOSPF LSD8within its areaLSAinconsistent
• C.VRF ttThe routing information will appear inOSPFprocess1in the routing table
• D.VRFttThe routing information will not be available nowOSPFprocess1in the routing table

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