This course is no longer offered

20550 Computer Networks II 1

Credits: 4 advanced credits in Computer Science

Prerequisites: Students must fulfill all English requirements and take bibliographic instruction in the Library.

Required: Computer Networks I

The course is based on chapters 5-8 of Computer Networks (4th ed.), by A. S. Tanenbaum (Prentice Hall, 2003). Note: Computer Networks I (20398) is based on the first five chapters of the book.

Topics: The network layer – the network layer in the Internet, the IP protocol, routing tables, network address translation (NAT), the future of the IP protocol – IPv6; The transport layer – the transport service; elements of transport protocols; addressing, communication connection process, flow control, buffer management, error control and crash recovery; server-client model; simple transport protocol; Internet transport protocols: TCP and UDP; RPC, wireless TCP and wireless UDP; The application layer – DNS; e-mail: SMTP, MIME, POP3 and IMAP; WWW applications: HTTP, URL, cookies, HTML, XML, CGI; wireless Web; WAP, I-Mode and cHTML; multimedia; voice over IP; Network security – introduction to cryptography: types of codes, symmetric-key algorithms, public-key algorithms; DES and AES; RSA; digital signatures; certification authorities and PKI; kinds of attacks and breaking ciphers; communication security; firewalls; VPN; wireless security; authentication protocols; E-mail security; Web security: spoofing, SSL, Java and ActiveX.

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1Beginning in Fall 2006, this course will no longer be offered.

There is some overlap in the content of this and other courses. For details, see Overlapping Courses.