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南京信息工程大学2009－2010学年第一学期Internet Technologies课程试卷及答案(A卷)
A. Fill in the blanks（10X1score = 10scores）
1. Scientists and engineers devised ways to build networks that connected multiple computers across large geographic distances, which is called internet or long-haul networks.
2. is the Internet's origins.
3. Web pages are written in a computer language, which is html
4. HTTP uses what numeric value, in decimal, of the destination port field of the TCP header?
80
5. POP3 protocol we use to receive email 。
6. An can be used to protect a private network from outside attack.
7. Today there are encryption systems that use two keys, one for encryption and one for decryption. The key used for decryption is called a public key because it must be kept secret. The key used for encryption is called a private key because it can be distributed to anyone.
8. The standard protocol for remote login is known as pop3 .
9. The HTML tag <.BR.> instructs a browser to begin a new line.
B. Explain abbreviation（10X2 = 20scores）
1. TCP ：Transmission Control Protocol
2. UDP ：User Datagram Protocol
3. HTTP : HyperText Transfer Protocol
4. FTP : File Transfer Protocol
5. WWW ；World Wide Web
6. SMTP ：Simple Mail Transfer Protocol
7. DNS ：Domain Name System
8. HTML ：HyperText Mark-up Language
9. IP ：Internet Protocol
10. ADSL ：Asymmetric Digital Subscriber Line