Download JNTUH MCA 3rd Sem R09 2017 August F3303 Linux Programming Question Paper

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Code No: F3303 R09

JAWAHARLAL NEHRU TECHNOLOGICAL UNIVERSITY HYDERABAD

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MCA III Semester Examinations, August - 2017

LINUX PROGRAMMING

Time: 3hrs Max.Marks:60

Answer any five questions

All questions carry equal marks

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1. a) What are the features of LINUX Operating System?
2. a) Describe the contents of a directory, explaining the mechanism by which its entries are updated by cp, mv, and rm commands. [6+6]
3. a) Explain briefly about Mathematical functions in awk.
4. b) Write a shell script to find the smallest of 10 integers using positional parameters.[6+6]
5. Differentiate between hard linking and soft linking.

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6. Write the syntax of read( ) and write( ) system calls and explain with an example code. [6+6]
7. Write the syntax of six versions of exec functions and also explain how these functions differ from each other. [12]
8. Define a signal. What are the uses of signals? What are the conditions that can generate a signal? Describe the actions to be taken by the kernel when a signal occurs. [12]
9. What are pipes? Explain how pipes are created and used in IPC with an example also mention their limitations. [12]
10. Explain the following POSIX APIs with clear syntax and with an example code: a) pthread_self( ) b) pthread kill() c) pthread_exit( ) [12]

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11. Explain briefly about the following socket APIs with clear syntax: a) socket( ) b) bind( ) c) listen( ) d) accept( ) [12]

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