642-885 試験問題を無料オンラインアクセス

What is one of the configuration errors within an AS that can stop a Cisco IOS-XR router from announcing certain prefixes to its EBGP peers?

• A.The inbound BGP route policy only has set actions defined without any pass actions defined
• B.The outbound BGP route policy only has set actions defined without any pass actions defined
• C.Some prefixes were mistagged with the no-export BGP community
• D.Some prefixes were set with an MED of 0

Given the IPv6 address of 2001:0DB8::1:800:200E:88AA, what will be its corresponding the solicited-node multicast address?

• A.FF01::1:FF0E:88AA
• B.FF02::1:FF0E:88AA
• C.FF01::1:200E:88AA
• D.FF01:0DB8::1:800:200E:88AA
• E.FF02::1:200E:88AA
• F.FF02:0DB8::1:800:200E:88AA

Which multicast routing protocol supports dense mode, sparse mode and bidirectional mode?

• A.MP-BGP
• B.MSDP
• C.DVMRP
• D.MOSPF
• E.PIM

Which three statements are correct regarding the various multicast groups? (Choose three.)

• A.Currently there is no source sending traffic to the 224.1.1.1 multicast group
• B.PE5 has a Null OILforthe (*,224.1.1.1) entry
• C.CE5 has a Null OILforthe (*,224.1.1.1) entry
• D.CE5 has joined the 224.0.1.40 multicast group
• E.PE5 has a Null OILforthe (*,224.0.1.40) entry

In which four ways does DHCPv6 differ from DHCPv4? (Choose four.)

• A.A hosts discovers a DHCPv6 server by using a DHCP Solicit packet.
• B.A DHCP server replies with a DHCP Advertise message.
• C.DHCPv4 functions without external protocols.
• D.An IPv6 host can request only one IP address at a time from a DHCPv6 server.
• E.A DHCPv6 server replies with a DHCP Offer packet.
• F.DHCPv6 uses the same message types as DHCPv4.
• G.A host discovers a DHCPv6 server by using a DHCP Discover packet.
• H.An IPv6 host can request multiple addresses at the same time from a DHCPv6 server.