Download JNTUA MCA 2014 Oct Supply 3rd Sem 06MC303 UNIX Network Programming Question Paper

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Code: 06MC303

MCA II Semester Supplementary Examinations September/October 2014

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UNIX NETWORK PROGRAMMING

(For students admitted in 2008 only)

Time: 3 hours Max Marks: 60

Answer any FIVE questions

All questions carry equal marks

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1. Explain how security is provided by file permissions.
2. Describe the purpose of the following commands with examples: Is, ps, ftp, tail, grep, join, cmp and tar.
3. Write a shell program to count and display the number of files in a given directory.
4. Describe the control structures in detail.
5. Write a program to copy standard input to standard output.

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6. Explain the directory handling system calls.
7. Differentiate between:
   1. fork and vfork.
   2. wait and waitpid.
8. Write a program to illustrate sleep function(implementation.

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9. Explain system V IPC in detail.
10. Explain UNIX APIs for messages-in detail.
11. Explain file locking with semaphores with an example.
12. Briefly explain about UNIX APIs for shared memory.
13. What is a socket? Explain the socket system calls for connection oriented protocol in detail.

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