The following configura tion exists on a router on one end of an IPv6 tunnel. Which type of tunnel is created by this configuration?（）
interface loopback 1
ip address 1.1.1.1 255.255.255.255
interface tunnel 2
ipv6 address 2000::1::/64
tunnel source loopback 1
tunnel destina tion 2.2.2.2
tunnel mode ipv6ip
ipv6 eigrp 1

单项选择题A client host uses IPv4 to communicate with one ser ver and IPv6 to communicate with another.Which of the following IPv6 coexistence features is likely at work on the host?（）

A. Native IPv6
B. Point - to -point tunnels
C. Multipoint tunnels
D. NAT - PT
E. Dual stacks

单项选择题An enterprise has plans to start adding IPv6 support. The initial deployment requires support from some IPv6 - only device s that need to access servers that support only IPv4. Which of the following tools would be most appropriate?（）

A. Native IPv6
B. Point - to -point tunnels
C. Multipoint tunnels
D. NAT - PT

单项选择题An enterprise h as plans to start adding IPv6 support. For the first year, the IPv6 will be in small pockets spread around the existing large IPv4 network, with occasional IPv6 traffic while applications teams test IPv6 - enabled servers and applications. Which of the fol lowing tools would be most appropriate?（）

A. Native IPv6
B. Point - to -point tunnels
C. Multipoint tunnels
D. NAT - PT

单项选择题Router R1 has been conf igured with an ipv6 route 2000:: 64 S0 0 0 64 command.Which of the following does the 64 at the end of the command represent?（）

A. Metric
B. Administrative distance
C. Timeout (seconds)
D. Prefix length
E. Interface ID

单项选择题The following output occurs on Router R1 , which runs both EIGRP for IPv6 and OSPFv3, with redistribution from EIGRP into OSPF configured with the redistribute eigrp 1 metric 25 command. Interface S0 0 1 has been enabled for EIGRP ASN 1. Which of the following should be true of redistribution in this case?（） D 2000:: 64 [90 1422516] via FE80::213:19FF:FE7B:5026, Serial0 0 1 C 2000:0:0:1:: 64 [0 0] via Serial0 0 1, directly connected L 2000::1:213:19FF:FE7B:5004 128 [0 0] via Serial0 0 1, receive

A. Route 2000::/64 will be redistributed.
B. Route 2 000:0:0:1::/64 will be redistributed.
C. Route 2000:1:213:19FF:FE7B:5004/128 will be redistributed.
D. No routes will be redistributed because of the omission of the subnets parameter of the redistribute command.