Download JNTUH MCA 4th Sem R17 2019 April-May 844AB Aprilmay Linux Programming Question Paper

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Code No: 844AB

JAWAHARLAL NEHRU TECHNOLOGICAL UNIVERSITY HYDERABAD

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MCA IV Semester Examinations, April/May - 2019

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.

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PART - A

5 x 5 Marks =25

1. a) Write short notes on file name substitution and command substitution. [5]
2. b) Explain in detail about stat family. [5]
3. c) Write a program to illustrate zombie process. [5]

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4. d) Explain briefly about the types of Inter Process Communication. [5]
5. e) Briefly discuss about the socket options. [5]

PART -B

5 x 10 Marks =50

1. a) Write short notes on shell responsibilities. b) Write a shell script to find the factorial of a given number. [5+5]

   OR

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2. a) Write short notes on interrupt processing in shell. b) Write a shell script to list all the directories and files in the current directory. [5+5]
3. a) Write short notes on scalar in Perl and their operations. b) Explain pattern matching with an example. [5+5]

   OR

4. a) Explain the concept of kernel support for files. b) Write a program to check and report file descriptors of all opened files. [5+5]

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5. a) Explain in brief the kernel support for signals. b) Write about alarm and pause functions with example. [5+5]

   OR

6. a) What is meant by process termination? Explain the various types of process terminations with suitable example. b) Write short notes on process attributes. [5+5]
7. Explain in detail about the process of reading and writing a message from and to a message queue. [10]

   OR

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8. a) Explain about inter process communication using pipes. b) Explain popen() and pclose() functions with suitable examples. [5+5]
9. a) Explain about the semget( ), semop( ), and semctl( ) functions. b) Explain about the kernel support for shared memory. [5+5]

   OR

10. What are Linux Sockets? Write about connection oriented and connectionless protocols. [10]

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