单选题 Vecchiarelli Consultants occupies two adjacent rooms in the Coffland Building. The network, consisting of four workstations and a printer, is probably a（ ）.
A. LAN
B. MAN
C. WAN
D. none of the above
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单选题（） is a protocol for file transfer.
A. FTP
B. SMTP
C. TELNET
D. HTTP
单选题（） is a protocol for mail services.
A. FTP
B. SMTP
C. TELNET
D. HTTP
单选题 （） is a protocol for accessing and transferring documents on the WWW.
A. FTP
B. SMTP
C. TELNET
D. HTTP
填空题 A ____is a set of rules that controls the interaction of different devices in a network or internetwork.
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