Download JNTUH MCA 4th Sem R15 2020 November 824AB Linux Programming Question Paper

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Code No: 824AB R15

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JAWAHARLAL NEHRU TECHNOLOGICAL UNIVERSITY HYDERABAD

MCA IV Semester Examinations, October/ November - 2020

LINUX PROGRAMMING

Time: 2 Hours Max.Marks:75

Answer any five questions

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All questions carry equal marks

1. a) Write a shell script to find the largest of 10 integers. [15]
2. a) Explain various process utilities in Linux with clear syntax. [15]
   b) Write about the following UNIX commands with example.
   Cal, date, echo, printf, bc, script, mailx, who, tty, stty. [15]

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3. a) How to declare and implement associative arrays? Give an example. [15]
4. a) Describe usage of dup (), dup2 () system calls with example.
   b) Explain about symlink () function with example program. [15]
5. a) Write the syntax of the following system calls and explain with an example code.
   a) telldir () b) mkdir () [15]

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6. a) Differentiate between fork( ) and vfork( ).
   b) What is the need of exec( ) system call? Write a C program to illustrate exec (). [15]
7. a) Define Signals. What do you mean by Unreliable Signals? Explain.
   b) Describe SIGKILL and SIGINT with examples. [15]
8. a) Write a program and explain how to transfer a large amount of data between two
   

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   processes using Message queues. [15]
9. a) Explain briefly about the following socket APIs with clear syntax:
   a) accept( ) b) connect() c) bind () [15]

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