Download JNTUH MCA 4th Sem R15 2017 August 824AB Linux Programming Question Paper

Download JNTUH (Jawaharlal nehru technological university) MCA (Master of Computer Applications) 4th Sem (Fourth Semester) Regulation-R15 2017 August 824AB Linux Programming Previous Question Paper

R15

Code No: 824AB















JAWAHARLAL NEHRU TECHNOLOGICAL UNIVERSITY HYDERABAD

MCA IV Semester Examinations, August - 2017

LINUX PROGRAMMING

Time: 3hrs













Max.Marks:75


Note: This question paper contains two parts A and B.


Part A is compulsory which carries 25 marks. Answer all questions in Part A.



Part B consists of 5 Units. Answer any one full question from each unit. Each



question carries 10 marks and may have a, b, c as sub questions.



PART - A



















5 ? 5 Marks = 25



1.a)

How are diff, comm and cmp utilities different from each other? Explain.

[5]

b) Define the boot block, super block, inode block and data block of the file system. [5]
c) What is a zombie process and explain how it may manifest itself?



[5]

d) Explain popen( ) and pclose( ) functions with sample prototypes.



[5]

e)

Differentiate between TCP and UDP.











[5]



PART - B

















5 ? 10 Marks = 50

2.a)

What are the features of Linux Operating system?

b)

Explain the usage of `chmod' command with clear syntax and example.

[5+5]

OR

3.a)

Write down the responsibilities of BASH shell.

b)

How to debug a shell script? Explain various options available in BASH shell
for debugging a script.















[5+5]



4.

Give the directory structure of Linux file system. Explain its entries.



[10]

OR

5.

What are the three kernel data structures for open files? Explain how these data structures
are shared by two independent processes with the same file open with a neat diagram.[10]


6.

Explain in how many ways and when a process terminate under normal and
abnormal conditions.















[10]

OR

7.

With an illustrative example explain signal( ) and abort( ) functions.



[10]



8.

Explain how to implement client - server communication using Message Queues. [10]

OR

9.

Describe the operations of semop( ) with a sample C program.





[10]



10.

Explain how TCP connections are established and terminated.





[10]

OR

11.

Write the syntax of the following socket system calls and explain:



a) connect( ) b)listen( )

c) shutdown( )









[10]



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