Which of these represents an IPv6 link-local address?（）

单项选择题Wich command can you use to manually assign a static IPV6 address to a router interface?（）

A.ipv6 address PREFIX_1::1/64
B.ipv6 autoconfig 2001:db8:2222:7272::72/64
C.ipv6 autoconfig
D.ipv6 address 2001:db8:2222:7272::72/64

单项选择题Which IPv6 address is valid?（）

A.2031:0:130F::9C0:876A:130B
B.2001:0DB8:0000:130F:0000:0000:08GC:140B
C.2001:0DB8:0:130H::87C:140B
D.2031::130F::9C0:876A:130B

单项选择题which address range efficiently summarizes the routing table of the addresses for router main?（）

A.172.16.0.0/18
B.172.16.0.0/16
C.172.16.0.0/20
D.172.16.0.0/21

多项选择题A national retail chain needs to design an IP addressing scheme to support a nationwide network. The company needs a minimum of 300 sub-networks and a maximum of 50 host addresses per subnet. Working with only one Class B address, which of the following subnet masks will support an appropriate addressing scheme?（）

A.255.255.255.0
B.255.255.255.128
C.255.255.252.0
D.255.255.255.224
E.255.255.255.192
F.255.255.248.0

多项选择题Which three are characteristics of an IPV6 anycast address?（）

A.any-to-many communication model
B.delivery of packets to the group interface that is closest to the sending device
C.one-to-many communication model
D.the same address for multiple devices in the group
E.one-to-nearest communication model
F.a unique IPV6 address for each device in the group