IV SEMESTER B.C.A EXAMINATIONS,MAY/JUNE 2007
NEW SCHEME
COMPUTER SCIENCE
UNIX OPERATING SYTEM (4 BCA 4 )
TIME:3HOURS MAX.MARKS:80
Instructions:All sections are compulsary
SECTION-A
Answer any eight of the following 8 X 3 = 24
1.Whar are the main features of Unix Operating System ?
2.Whar are the facilites provided by the kernel ?
3.Whar is the difference between an argument and an option ?
Give an examples each
4.What do you mean by context of a process ? Explain
5.what is Boot strapping the sytem ?Explain
6. Explain any three file display commands.
7.Explain EXEC () command with any two options.
8.Explain briefly about Unix system variables.
9.Explain briefly about unix system commmunication.
10.Write a shell program to generate the Fibonacci seriers.
SECTION - B
Answer any four of the following questions: 4 X 14 = 56
11.a) Describe briefly the Unix architecture explaining the role played by the kernel
and shell in sharing the workload.
b)What are the differnet modes of setting file permisson ? Explain with an
example
c) Explain lr. lpr and lprn commands 6 + 5 + 3
12.a) Explain how inodes are stored with a neat Diagram
b)Explain differnt states of a process with a neat diagram 8 + 6
13.a)Write a shell program to find the sum of the series upto n term
1 + 1/2 + 1/3 + ..............1/n.
b) What is a filter ? discuss any four filters with an example.
14.a)discuss different loop control constructs provided by shell programming with
an example
b) Using awk, write a menu driven program to create a student database and
perform the following opeerations.
i) Adding
ii) Deleting
iii) Display 6 + 8
15. a)What is a system call ? Explain any four file related system calls.
b)What is the significance of PID and PPID ?
c) Explain piped process 8 + 3 + 3
16.a) Explain the main functions of system administrator.
b) Explain about secondary storage management. 7 + 7
NEW SCHEME
COMPUTER SCIENCE
UNIX OPERATING SYTEM (4 BCA 4 )
TIME:3HOURS MAX.MARKS:80
Instructions:All sections are compulsary
SECTION-A
Answer any eight of the following 8 X 3 = 24
1.Whar are the main features of Unix Operating System ?
2.Whar are the facilites provided by the kernel ?
3.Whar is the difference between an argument and an option ?
Give an examples each
4.What do you mean by context of a process ? Explain
5.what is Boot strapping the sytem ?Explain
6. Explain any three file display commands.
7.Explain EXEC () command with any two options.
8.Explain briefly about Unix system variables.
9.Explain briefly about unix system commmunication.
10.Write a shell program to generate the Fibonacci seriers.
SECTION - B
Answer any four of the following questions: 4 X 14 = 56
11.a) Describe briefly the Unix architecture explaining the role played by the kernel
and shell in sharing the workload.
b)What are the differnet modes of setting file permisson ? Explain with an
example
c) Explain lr. lpr and lprn commands 6 + 5 + 3
12.a) Explain how inodes are stored with a neat Diagram
b)Explain differnt states of a process with a neat diagram 8 + 6
13.a)Write a shell program to find the sum of the series upto n term
1 + 1/2 + 1/3 + ..............1/n.
b) What is a filter ? discuss any four filters with an example.
14.a)discuss different loop control constructs provided by shell programming with
an example
b) Using awk, write a menu driven program to create a student database and
perform the following opeerations.
i) Adding
ii) Deleting
iii) Display 6 + 8
15. a)What is a system call ? Explain any four file related system calls.
b)What is the significance of PID and PPID ?
c) Explain piped process 8 + 3 + 3
16.a) Explain the main functions of system administrator.
b) Explain about secondary storage management. 7 + 7
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