Bangalore University 2006 B.C.A Computer Application Unix Operating System - Question Paper

Time : three Hours
Max. Marks: 80

part - A

ans any 8 of the subsequent questions (8x3=24)

1.Explain the structure of the super block.

2.Explain the architecture of Unix System.

3.Explain the use of fork and kill system calls with an example.

4.Explain the purpose of the subsequent commands with an example.
i) Cut
ii) Sort

5.Write short notes on checking the file system.

6.What is a shell? elaborate the various kinds of shell in Unix?

7.Explain briefly Unix System Communication.

8.Explain the concept of a piped process.

9.Write a shell program to obtain out whether the provided string is Palindrome or not.

10. discuss the use of subsequent predefined variables in bourne shell.
i) PSI
ii) IFS

part - B

ans any 4 of the subsequent questions: (4x14=56)

11.
a)What is an inode? discuss with an example inodes are allocated.
b)Explain the various file access permission and various kinds of users.

12.
a) Write a note on process scheduling.
b)Explaining various states of a process and its associated in Unix System Calls.

13.
a)Explain various loop control structures available in Boarne Shell.
b)Write the steps involved in CREAT System Call.

14.
a)Explain the features of Unix Operating System.
b)Explain with a neat block diagram of Unix System Kernel.

15.
a)Explain the commands used for secondary storage management.
b) Write a note on awk and sed.

16.
a)Write a shell script to interchange the value of 2 variables.
b) discuss sending and handing mails.

Earning:   Approval pending.