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

Download JNTUA (JNTU Anantapur) MCA (Master of Computer Applications) 2014 Sept-Oct Supplementary 3rd Sem 06MC303 UNIX Network Programming Question Paper

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Code: 06MC303
MCA III Semester Supplementary Examinations September/October 2014
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 (a) Explain how security is provided by file permissions.
(b) Describe the purpose of the following commands with examples:
ls, ps, ftp, tail, grep, join, cmp and tar.

2 (a) Write a shell program to count and display the number of files in a given directory.
(b) Describe the control structures in detail.

3 (a) Write a program to copy standard input to standard output.
(b) Explain the directory handling system calls.

4 (a) Differentiate between:
(i) fork and vfork.
(ii) wait and waitpid.
(b) Write a program to illustrate sleep function implementation.

5 Explain system V IPC in detail.

6 Explain UNIX APIs for messages in detail.

7 (a) Explain file locking with semaphores with an example.
(b) Briefly explain about UNIX APIs for shared memory.

8 What is a socket? Explain the socket system calls for connection oriented protocol in detail.
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