The following description of BGP ring protection is correct

• A.Any routing information from the IBGP peer is advertised to the other IBGP peers
• B.BGP routers that are not RR do not announce any updates from the IBGP peer to other IBGP peers
• C.through the AS-path attribute, discard any update information received from the EBGP peer that contains its own AS number in the AS-path attribute
• D.The BGP router does not announce any updates from the EBGP peer to other EBGP peers

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For Layer 2 VPN technology, the following statement is correct? Multi-select

• A.The VPLS configuration is complex and the Layer 2 network transmits BUM packets.
• B.BGPEVPN addresses mac address drift and multi-tenancy that VPLS cannot support.
• C.BGPEVPN supports features such as tenant isolation, Multi-homing, and broadcast suppression.
• D.VPLS is a widely used technology in the live network, which can provide transparent transmission of three-layer messages and achieve multi-point access.

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Regarding the description of the hello message in the PIM-SM message, the error is?

• A.Elect dr in multiple router segments with hello messages
• B.In a PIM-SM network, a newly started multicast router needs to use hello messages to discover neighbors and maintain neighbor relationships
• C.Hello messages are sent to multicast address 224005
• D.Routers periodically use hello messages to stay in touch

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Configure queue-based traffic shaping, which defaults to tailing if the queue length exceeds the cache size

• A.True
• B.False

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What mechanisms or techniques can VRRP combine with to monitor uplink connectivity?

• A.Interface trace
• B.NQA
• C.BFD
• D.IP-link

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