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
A national retail chain needs to design an IP addressin...
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
Which three are characteristics of an IPV6 anycast addr...
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
Which option is a valid IPv6 address?（）A.2001：0000：130F...
单项选择题Which option is a valid IPv6 address?（）
A.2001：0000：130F：：099a：：12a B.2002：7654：A1AD：61：81AF：CCC1 C.FEC0：ABCD：WXYZ：0067：：2A4 D.2004：1：25A4：886F：：1
