55109-mt----unix Network Programming

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Code No: 55109/MT M.Tech. – I Semester Supplementary Examinations, September, 2008 UNIX NETWORK PROGRAMMING (Software Engineering) Time: 3hours

Max. Marks:60 Answer any FIVE questions All questions carry equal marks ---

1.a) b)

What is a shell? List the shell responsibilities. Discuss various disk utilities.

2.a) b)

Describe Unix file structure in detail. Explain the Unix functions used to change the user ID of a file and the group ID of a file.

3.a) b)

What is a process? Explain process structure. Give a note on kill and raise functions.

4.a) b)

What is a namespace? Explain namespaces for IPC. How to provide a bi-directional flow of data between two processes using pipes? Explain with a program.

5.a) b)

Explain message queue structures in kernel. Give a note on multiplexing messages.

6.a) b)

Explain file locking with semaphores. Discuss about Unix kernel support for shared memory.

7.a) b)

Explain socket system calls for connection – oriented protocols. Write a note on advanced socket system calls.

8.

Explain in detail the transparency issues of Remote procedure calls. $$$