Bangalore University 2005 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 anode table. and datablock of Unit File System.

2.Explain the use of (i) at (ii) batch (iii) crontab commands.

3.Explain the use of subsequent predefined variables in Bourne shell: (i) PS1 (ii) IFS

4.Explain various file permissions and how they are assigned to owner, group and others.

5.Explain the difference ranging from multitasking and multiprogramming.

6.Mention various kinds of file permissions available in Unix OS

7.What is the difference ranging from Kernel and Shell.

8.What are the features of Unix Operating System?

9.What are the security levels in Unix O.S.?

10.Mention the commands for secondary storage management.

part - B

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

11.
a)What is the difference ranging from UNIX and DOS operating system?
b) discuss in detail the Unix Kernel system.

12.
a)Explain how inodes are accessed.
b)Briefly discuss the filers in Unix.

13.
a)Write a note on process scheduling.
b)Explain the steps involved in Fork ( ) system call.

14.
a)Write a shell program to add candidate details and print the details in neat format.
b)Explain unitand case statements in Bourne shell with examples.

15.
a)Describe the difference ranging from piped process and Daemon ( ) process.
b)Explain briefly user and supery isor privileges.

16.
a)Explain the commands used for secondary storage management.
b) What is signal? elaborate its various types?

Earning:   Approval pending.