During the evolution from IPv4 network to IPv6, some transitional technologies have emerged. Which of the following are common types of transitional technologies? (Multiple choice)

• A.Conversion technology
• B.Compatible technologies
• C.Tunnel technology
• D.Dual stack technology

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On an OSPF network, if two routers with the same router ID run in different areas and one of the routers is an ASBR, LSA flapping occurs.

• A.TRUE
• B.FALSE

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During routine maintenance, an enterprise administrator runs a command to check VRRP group information. Which of the following statements is false about the command output?
yaml
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<HUAWEI> display vrrp verbose
Vlanif100 | Virtual Router 1 State: Master
Virtual IP: 10.1.1.100
Master IP: 10.1.1.2
PriorityRun: 120 PriorityConfig: 120
DR: None BDR: None MTU: 0
Preempt: YES Delay Time: 20s
Remain: --
Track: YES Priority Reduced: 20
Auth Type: MD5
BFD-session State: UP

• A.Preemption is enabled for the VRRP group.
• B.This VRRP group is an mVRRP group.
• C.Authentication is enabled for the VRRP group.
• D.The ID of the VRRP group is 1.

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EVPN is a VPN technology that can only provide layer 2 network interconnection.

• A.TRUE
• B.FALSE

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Which command is used to configure the VRRP preemption delay?

• A.vrrp vrid 1 timer delay 20
• B.vrrp vrid 1 preempt-delay 20
• C.vrrp vrid 1 preempt-mode timer delay 20
• D.vrrp vrid 1 preempt-timer 20

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