IV Semester B.C.A Examination,April/May 2012
Y2K8 SCHEME
COMPUTER SCIENCE
BCA 406:Unix Programming.
Time:3hours Max.Marks:60
Instruction:Answer all the sections.
SECTION-A
Answer any ten questions. 10X1=10
1.what is Daemon?
2.list the different part of unix file system.
3.Which is the process which cannot be killed using the kil command?
4.what is PID?
5.what is the purpose of du command?
6.what is filter?
7.Name any commands for compressing and decompressing files in Unix.
8.What is shell programming?
9.Give the usage of PWD.
10.what is the significance of backquotes in a command line?
11.what is the function of mesg command?
12.what is the function of boot block?
SECTION-B
Answer any five questions: 5X3=15
13.What are the salient features of unix operating system?
14.Explain any three options used with Ps command.
15.Explain mounting of file system in unix.
16.Explain the concept of a piped process.
17.What are the different types of shells in unix?
18.Write a shell program to find whether a given number is odd or even.
19.Explain the difference between who and finger commands.
20.Explain any 3duties of system administrator.
SECTION-C
Answer any five questions 5X7=35
21.Explain with a neat diagram.the unix system architecture.
22.what are the different modes of setting file permissions? Explain with an example.
23.Compare kernel mode versus user mode.
24.Explain the command used to check for disk space in Unix.
25.Explain the different stages of a process and its associated unix system.
26.Explain the different loop control structures available in unix.
27.Write a shell program to print all prime numbers between m and n (m<n).
28.Explain the following
a) Super user's privileges. 4marks
b)Tax command in unix 3marks
Y2K8 SCHEME
COMPUTER SCIENCE
BCA 406:Unix Programming.
Time:3hours Max.Marks:60
Instruction:Answer all the sections.
SECTION-A
Answer any ten questions. 10X1=10
1.what is Daemon?
2.list the different part of unix file system.
3.Which is the process which cannot be killed using the kil command?
4.what is PID?
5.what is the purpose of du command?
6.what is filter?
7.Name any commands for compressing and decompressing files in Unix.
8.What is shell programming?
9.Give the usage of PWD.
10.what is the significance of backquotes in a command line?
11.what is the function of mesg command?
12.what is the function of boot block?
SECTION-B
Answer any five questions: 5X3=15
13.What are the salient features of unix operating system?
14.Explain any three options used with Ps command.
15.Explain mounting of file system in unix.
16.Explain the concept of a piped process.
17.What are the different types of shells in unix?
18.Write a shell program to find whether a given number is odd or even.
19.Explain the difference between who and finger commands.
20.Explain any 3duties of system administrator.
SECTION-C
Answer any five questions 5X7=35
21.Explain with a neat diagram.the unix system architecture.
22.what are the different modes of setting file permissions? Explain with an example.
23.Compare kernel mode versus user mode.
24.Explain the command used to check for disk space in Unix.
25.Explain the different stages of a process and its associated unix system.
26.Explain the different loop control structures available in unix.
27.Write a shell program to print all prime numbers between m and n (m<n).
28.Explain the following
a) Super user's privileges. 4marks
b)Tax command in unix 3marks
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