642-885 무료 덤프문제 온라인 액세스

When implementing high-availability stateful switchover BGP routing, in which situation would Cisco NSR be required?

• A.On the PE routers connecting to the CE routers which are incapable of performing stateful switchover operations because the CE routers are only NSF aware but not NSF capable
• B.On the PE routers connecting to the CE routers which are not NSF aware or are not NSF capable
• C.On the PE routers connecting to the CE routers which are incapable of performing stateful switchover operations because the CE routers are only NSF capable but not NSF aware
• D.On the PE routers connecting to the CE routers which support graceful restart
• E.On the service provider core P routers which are also NSF aware
• F.On the service provider core P routers which are also NSF capable

In which three cases is a dual-stack IPv6/IPv4 router required? (Choose three.)

• A.tunnel endpoint routers in the case of IPv6 over GRE
• B.PE routers in case of an IPv6 over IPv4 tunnel over MPLS implementation
• C.6to4 implementation border routers
• D.PE and P routers in case of an IPv6 over IPv4 tunnel over MPLS implementation
• E.6to4 implementation border and neighboring routers
• F.transit routers in case of an IPv6 over GRE implementation

Which type of DNS record is used for IPv6 forward lookups?

• A.A records
• B.AAAA records
• C.MX records
• D.PTR records

Which command configures a Source Specific Multicast on a Cisco IOS XR router?

• A.configure interface all enable exit router igmp version 3 commit
• B.configure multicast-routing address-family ipv4 interface all enable exit router igmp version 1 commit
• C.configure multicast-routing address-family ipv4 interface all enable exit router igmp version 3 commit
• D.configure multicast-routing address-family ipv4 interface all enable exit router igmp version 2 commit

Refer to the exhibit. R2cannot to learn RP information from XR3. Which issue is the source of the problem?

• A.Multicast routing is not enabled on the XR3 Giga0/0/0/0 interface.
• B.R2 is learning the RP address via non-IGP routing protocol.
• C.BGP IPv4 MDT address family is not enabled on XR3.
• D.XR3 is not the DR.
• E.Multicast routing is not enabled on the XR3 Loopback0 interface.