Download JNTUH MCA 4th Sem R17 2021 July-August 844AB Linux Programming Question Paper

Download JNTUH (Jawaharlal nehru technological university) MCA (Master of Computer Applications) 4th Sem (Fourth Semester) Regulation-R17 2021 July-August 844AB Linux Programming Previous Question Paper

R17

Code No: 844AB















2021

JAWAHARLAL NEHRU TECHNOLOGICAL UNIVERSITY HYDERABAD

MCA IV Semester Examinations, July/August - 2021

LINUX PROGRAMMING

Time: 3 Hours













Max.Marks:75

Answer any five questions

All questions carry equal marks

- - -



1.

Explain about shell variables and shell Meta characters with suitable examples. [15]



2.a)

Explain about Piping and I/O redirection operators in Bourne Shell.

b)

Write a shell script to display the contents of a file without using in-built utilities. [8+7]


3.a)

Give the syntax for open( ) and create( ) system calls and explain.

b)

Describe the file descriptor and inode table entries with a neat diagram.

[8+7]



4.a)

Explain any two directory related system calls with neat syntax and example.

b)

Write about hashes and references in Perl.









[8+7]


5.a)

How does a fork( ) system call differs from an exec( ) system call? Explain.

b)

Write a program that illustrates the concept of zombie process.





[8+7]



6.a)

Illustrate the concept of kill( ) and raise( ) system calls.

b)

Explain about the primary features of reliable functions with an illustrative example
program.



















[7+8]


7.a)

What are the security problems associated with system V IPC mechanisms?

b)

What are the limitations of pipes? List the benefits of FIFOs compared to pipes. [7+8]


8.

Describe all the elementary socket functions required to write a complete TCP client
and server application.















[15]




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