單項選擇題

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?（）

A.RARP request
B.Show Network Address request
C.Proxy ARP request
D.ARP request
E.Show Hardware Address request

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單項選擇題

Which network protocol does DNS use?（）

A.FTP
B.TFTP
C.TCP
D.UDP
E.SCP

單項選擇題

DNS servers provide what service?（）

A.they run a spell check on host names to ensure accurate routing
B.they map individual hosts to their specific IP address
C.they convert domain names into IP address
D.Given an IP address,they determine the name of the host that is…