多项选择题
Which two addresses can be assigned to a host with a subnet mask of 255.255.254.0？（）
A.113.10.4.0 B.186.54.3.0 C.175.33.3.255 D.26.35.2.255 E.17.35.36.0
单项选择题 When two hosts are trying to communicate across a network, how does the host originating thecommunication determine the hardware address of the host that it wants to "talk" to?（）
单项选择题 Which network protocol does DNS use?（）
单项选择题 DNS servers provide what service?（）
