Download JNTUH MCA 3rd Sem R09 2018 June-July F3303 Linux Programming Question Paper

Download JNTUH (Jawaharlal nehru technological university) MCA (Master of Computer Applications) 3rd Sem (Third Semester) Regulation-R09 2018 June-July F3303 Linux Programming Previous Question Paper

R09

Code No: F3303















JAWAHARLAL NEHRU TECHNOLOGICAL UNIVERSITY HYDERABAD

MCA III Semester Examinations, June/July - 2018

LINUX PROGRAMMING



Time: 3hrs













Max.Marks:60

Answer any five questions

All questions carry equal marks

- - -



1.a)

Write a shell script that determines the period for which a specified user is working on
the system?

b) Explain reliable and unreliable signals.











[6+6]







2.a)

Write about directory management system calls.

b)

Differentiate pipes and named pipes.











[6+6]


3.a)

Write about orphan process.

b)

Write a C program to create a zombie process.









[6+6]



4.

Write a C program to create a message queue with read and write permissions to write
3 messages to it with different priority numbers.









[12]



5.a)

What are semaphores? Explain with an example.

b)

Write a note on POSIX thread APIs.











[6+6]



6.a)

Write about shell meta characters.

b)

Differentiate soft links and hard links.











[6+6]



7.

What is socket? Explain socket system calls for connection oriented protocol.

[12]



8.

Write short notes on the following:

a) Socket addresses
b) Stream errors

c) FIFO's.



















[12]




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