多項選擇題Cisco IOS XR Software Multicast Routing Implementation， which three features are supported in IPv6 onCisco CRS router？（）

A.PIM-SSM
B.Aggregation multicast
C.PIM-Bidirectional
D.OOR handling
E.integrated multicast
F.Multicast NSF


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1.單項選擇題Which option is not a valid method to assign the lowest-order 64-bit field of an IPv6 unicast address？（）

A.ARP
B.manual assignment
C.DHCPv6
D.auto-configured based on the 48-bit MAC address
E.auto-generated pseudo-random number

2.多項選擇題Which two routers support cable access？（）

A.ME3000
B.UBR10000
C.ASR9000
D.CRS-1
E.ME3600
F.UBR7200

3.單項選擇題Assume that the PEs are separated by Multiple P routers.How many labels should the ingress PE push for BPE functionality？（）

A.1
B.None
C.3
D.2
E.It depends on the numbers of hops between the ingress and egress PE

4.單項選擇題Which option describes a benefits of IPv6 VPN Provider Edge？（）

A.Provider support for intra-AS and CSC scenarios
B.Uses separate signaling plane， which provides more security than IPv4
C.BGP is the preferred routing protocol for connecting two SPs
D.No requirement for a separate signaling plane

5.單項選擇題Which statement about multicast VPN is true？（）

A.The MDT group address should be the same for both address families in the same VRF
B.The MDT group address should be the same for both address families in the different VRFs
C.Configuration of the MDT source on a pre-VRF basis is supported only on IPv6
D.The MDT group address should be different for both address families in the same VRF

7.多項選擇題Which two requirements to deploy 6PE and 6VPE solutions are mandatory？（）

A.MPLS is enabled on the core， distribution， and edge devices.
B.A triple stack is enabled on PE devices.
C.The network has at least six PE devices.
D.A dual stack is enabled on all the P and PE devices in a network.

8.多項選擇題Which two statements about DS-Lite are true？（）

A.IPv4 packets are carried over IPv6 tunnels to the LSN while IPv6 traffic is forwarded natively.
B.Ipv6 packets are carried over IPv4 tunnels to the LSN while IPv4 traffic is forwards natively.
C.The LSN performs NAT44 on private IPv4 source addresses.
D.DS-Lite does not perform any address translation.

9.單項選擇題Which configuration prevents traffic that is sourced from the unique local address scope to be sent out ofthe link to the upstream service provider？（）

A.interface Ethernet0/0  I.pv6 traffic-filter NoULA out  I.pv6 access-list NoULA  Deny ipv6 FC00：：/8 any  Permit ipv6 any any
B.interface Ethernet0/0  I.pv6 traffic-filter NoULA out  I.pv6 access-list NoULA  Deny ipv6 FC00：：/7 anyP  ermit ipv8 any any
C.interface Ethernet0/0  I.pv6 access-group NoULA out  I.pv6 access-list NoULA  Deny ipv6 FC00：：/8 anyP  ermit ipv6 any any
D.interface Ethernet0/0  I.pv6 access-group NoULA out  I.pv6 access-list NoULA  Deny ipv6 FC00：：/7 any  Permit ipv6 any any

10.單項選擇題Which information is carried in the OSPFv3 intra-area Prefix LSA？（）

A.all link-local addresses
B.all IPv6 prefix and topology information that OSPFv2 included in Router LSA and Network LSA
C.list of options associated with the link to all other routers attached to the link
D.all prefix-specific information that OSPFv2 included in Router LSA and Network LSA