CtrlAiHub

1.Which of the following introduced the flavor of UNIX named Solaris ?

1.HP
2.IBM
3.Sun Microsystems.
4.Digital Equipment Corp

2.Which of the following is not a variant of UNIX ?

1.Solaris
2.AIX
3.IRIX
4.AS400

3.In which language are the system calls implemented in Unix ?

1.C.
2.C++.
3.Assembly Language.
4.Fortran.

4.Which of the following process is given the name “super daemon” in Unix ?

1.init
2.sysinit.
3.inetd.
4.proc.

5. What is the name of the method that kernel uses to minimize the frequency of disk access by maintaining a pool of internal data buffer to increase the response time and throughput ?

1.Pooling
2.Spooling
3.Swapping
4.Buffer cache

6.What does wtmp and utmp files maintain ?

1.User login-logout log
2.Temporary system data.
3.The user’s command execution log.
4.The user’s su and sudo attempts.

7.What approach does an application use to communicate with the kernel.?

1.System Calls.
2.C Programs.
3.Shell Script.
4.Shell.

8.What is the purpose of command ?

1.Shows user login logoff attempts
2.kernel log messages
3.Shows the Syslog file for info messages
4.Shows the daemon log messages.

9.What does the following command do?

1.block device for all users
2.Will create a FIFO if user is not root
3.Will create a block device for all users
4.Will create a block device if user is root

10.Which of the following commands is used to set terminal IO characteristics ?

1.stty.
2.tty.
3.ptty.
4.ctty.

11.Which of the following option of ls command can be used to view file inode number ?

1.l
2.o
3.i
4.a

12.Which of the following actions is performed by command ?

1.Print a file with name * in /
2.List all files and directories recursively starting from /
3.List all files in / directory
4.List all files and directories in / directory.

13.Which of the following commands is used to display the octal value of the text ?

1.od.
2.oct.
3.text_oct.
4.octal.

14.Which of the following command is used to view the contents of a compressed text file.?

1.cat
2.type
3.print
4.zcat

15.What is the command to change the group ownership of a file ?

1.cgrp
2.group
3.change
4.chgrp