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.


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1.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

2.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

3.單項選擇題Which statement about implementing the Cisco IPv6 provider Edge Router over MPLS is true？（）

A.6PE feature is supported over tunnels other than RSVP-TE tunnels
B.Core MPLS routers are supporting IPv6 ONLY
C.6PE feature is not supported over tunnels other than RSVP-TE tunnels
D.Core MPLS routers are supporting IPv4 only

4.多項選擇題Which two statements about Layer 3 MPLS VPN are true？（）

A.The virtual routing and forwarding table is separate from the global routing table that exists on PE routers. Routes are injected into the VRF from the CE-PE routing protocols for that VRF and any MP-BGP announcements that match the defined VRF RTs
B.Multiprotocol Border Gateway Protocol is run between PE and CE routers to exchange customer prefixes in a VPNv4 format
C.A customer edge router peers at Layer 3 to the provider edge. The PE-CE interface runs either a dynamic routing protocol （eBGP， RIPv2， EIGRP， OSPF） or a static routing protocol （Static， Connected）
D.VPNv4 address is the combination of the RT and customer IPv4 prefix. These VPNv4 prefixes are passed in MP-BGP

5.多項選擇題Which four statements about Ethernet virtual circuit （EVC） infrastructure are true？ （）

A.EVC infrastructure is a Layer 3 platform-independent routing architecture that supports IP overEthernet services
B.Ethernet flow point （EFP） is configured on the main interface
C.Feature commands like MQC-based QoS policies can be specified
D.EVC infrastructure is a Layer 2 platform-independent bridging architecture that supports Ethernetservices
E.Each Ethernet flow point （EFP） matches a predefined VLAN tag-based criteria
F.Ethernet flow point （EFP） is configured on the VLAN interface

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