Explore topic-wise MCQs in Computer Science.

This section includes 139 Mcqs, each offering curated multiple-choice questions to sharpen your Computer Science knowledge and support exam preparation. Choose a topic below to get started.

1.

What does OSS stand for?

A. pen System Software
B. riginal Source Software
C. pen Source Software
D. riginal System Server
E. one of the above
Answer» D. riginal System Server
Discussion
2.

What command is used to count thenumber of files in the current directory by using pipes?

A. s | ws - c
B. s | wc - w
C. s | wc - l
D. s | wc
E. one of the above
Answer» D. s | wc
Discussion
3.

What does GNU stand for?

A. NU's not Unix
B. reek Needed Unix
C. eneral Unix
D. eneral Noble Unix
E. one of the above
Answer» B. reek Needed Unix
Discussion
4.

What does FSF stand for?

A. ree Software File
B. ile Server First
C. irst Serve First
D. ree Software Foundation
E. one of the above
Answer» E. one of the above
Discussion
5.

Which program is used to schedule particular jobsorprograms at particular times on the system?

A. i
B. utlook
C. cheduler
D. ron
E. one of the above
Answer» E. one of the above
Discussion
6.

Which of the following subdirectory(ies) contains the system boot scripts.

A. /dev
B. /bin
C. /etc
D. /home
Answer» D. /home
Discussion
7.

Which of the following command can be used to rename a file in UNIX?

A. ren
B. mv
C. remove
D. change
Answer» C. remove
Discussion
8.

For you to create a swap partition by using fdisk, what must the partition's system ID type be?

A. 83
B. 82
C. 5
D. 4
Answer» C. 5
Discussion
9.

Which daemon is used for the Apache server?

A. apached
B. httpd
C. html
D. shttp
Answer» C. html
Discussion
10.

What types of installations require a special boot disk?

A. NFS
B. FTP
C. PCMCIA
D. All of the above
Answer» E.
Discussion
11.

What command is used to list the jobs currently in print queues?

A. lpq
B. lpr
C. lprm
D. lpc
Answer» B. lpr
Discussion
12.

What command is used to compare the files?

A. ccp
B. du
C. cmp
D. comp
Answer» D. comp
Discussion
13.

What script is run for setting bash global defaults for all users?

A. /etc/.profile
B. /etc/.bashrc
C. /etc/.log
D. /etc/profile
Answer» E.
Discussion
14.

What command is used to summarize the disk usage?

A. disk
B. du
C. fdisk
D. chkdsk
Answer» C. fdisk
Discussion
15.

Which of the following subdirectory(ies) contains the device files?

A. /dev
B. /bin
C. /etc
D. /home
Answer» B. /bin
Discussion
16.

Which of the following NIS clients returns the name of the NIS server used by the NIS client?

A. ypwhich
B. ypbind
C. ypcat
D. yppoll
Answer» B. ypbind
Discussion
17.

How can you rebuild the RPM file to include the new patches?

A. #NAME?
B. #NAME?
C. #NAME?
D. #NAME?
Answer» B. #NAME?
Discussion
18.

What layer protocol is responsible for user and the application programme support such as passwords, resource sharing, file transfer and network management?

A. Layer 4 protocols
B. Layer 5 protocols
C. Layer 6 protocols
D. Layer 7 protocols
Answer» E.
Discussion
19.

How many extended partitions can exist on one drive?

A. 16
B. 4
C. 2
D. 1
Answer» E.
Discussion
20.

What are the appropriate Hex codes for setting Linux swap and Linux native partition types in fdisk?

A. 82 and 83
B. 92 and 93
C. 63 and 64
D. 82 and 85
Answer» B. 92 and 93
Discussion
21.

What command is used to halt a Linux system?

A. init 0
B. Shutdown -t
C. Shutdown -g -y0
D. Ctrl+Alt+Del
Answer» B. Shutdown -t
Discussion
22.

In order to increase the amount of memory available for a system, what is the maximum size of a swap partition (with kernel version 2.2.x)?

A. 2GB
B. 128MB
C. 64MB
D. 32MB
Answer» B. 128MB
Discussion
23.

What command is used to count just the number of characters in a file?

A. wc - r
B. wc - w
C. wc - c
D. wc - 1
Answer» D. wc - 1
Discussion
24.

What command is used with vi editor to move the cursor to the left?

A. h
B. k
C. j
D. i
Answer» B. k
Discussion
25.

What service is not monitored by inetd ?

A. SSH
B. time
C. ntalk
D. finger
Answer» B. time
Discussion
26.

_____ tool allows you to change your default X Window desktop.

A. utilinux
B. cempre
C. switchdesk
D. window
Answer» D. window
Discussion
27.

How many class A, B and C network IDs can exist?

A. 128
B. 126
C. 16382
D. 2113658
Answer» E.
Discussion
28.

Which program is used to automatically install Red Mat Linux on identical hardware?

A. bzimage.img
B. tar
C. ghost
D. mkkickstart
Answer» E.
Discussion
29.

What command is used to query for a specific package with RPM?

A. rpm -q
B. rpm -a
C. rpm -d
D. rpm -1
Answer» B. rpm -a
Discussion
30.

What command is used to assign only read permission to all three categories of the file'letter'?

A. chmod u + r, g + r, o - x letter
B. chmod ugo = r letter
C. chmod a - rw letter
D. chmod go + r letter
Answer» C. chmod a - rw letter
Discussion
31.

Which of the following command is used to mount NFS filesystems?

A. nfsmount
B. knfsd
C. mount
D. All of the above
Answer» D. All of the above
Discussion
32.

What shell's wild-card is used to match a single character?

A. [!ijk]
B. [ijk]
C. ?
D. *
Answer» D. *
Discussion
33.

What command is used to display and create files?

A. lyrix
B. ed
C. vi
D. cat
Answer» E.
Discussion
34.

Which of the following tool is used to partition your hard drive?

A. mkfs
B. fdisk
C. fsck
D. mount
Answer» C. fsck
Discussion
35.

To create an installation boot floppy disk from Linux (or another Unix) machine, what command could you use?

A. fdisk
B. fsck
C. dd
D. rawrite
Answer» D. rawrite
Discussion
36.

Which of the following is not a filter command?

A. sort
B. wc
C. grep
D. cat
Answer» E.
Discussion
37.

What file contains the list of port numbers (and associated names) monitored by inetd?

A. /etc/services
B. /etc/nsorder
C. /etc/nsswitch.conf/
D. /etc/hosts
Answer» B. /etc/nsorder
Discussion
38.

GNOME is based on

A. CORBA toolkit
B. COM/DCOM toolkit
C. ORE toolkit
D. OLE DB toolkit
Answer» B. COM/DCOM toolkit
Discussion
39.

Which file is used to configure which filesystems are mounted?

A. /etc/mount.sys
B. /etc/filesys
C. /etc/sysconfig
D. /etc/fstab
Answer» E.
Discussion
40.

What command do you use to add routes to a Linux router?

A. addroute
B. route
C. netstat
D. net
Answer» C. netstat
Discussion
41.

Which program is used to schedule particular jobs or programs at particular times on the system?

A. vi
B. Outlook
C. Scheduler
D. cron
Answer» E.
Discussion
42.

RPM

A. stands for Red Hat Package Manager
B. is used to install, uninstall, and manage packages
C. is used to keep track of the users
D. assigns a dynamic IP address
Answer» B. is used to install, uninstall, and manage packages
Discussion
43.

What command is used with vi editor to delete three words?

A. 3$d
B. 3 dw
C. 3 x
D. 3 dd
Answer» C. 3 x
Discussion
44.

Who has developed the Linux?

A. Bob Young
B. Mark Eving
C. Richard Stallman
D. Linus Torvalds
Answer» E.
Discussion
45.

What command is used to change the working directory?

A. cdir
B. chdir
C. changedir
D. cd
Answer» E.
Discussion
46.

The location of some system configuration and system administrator executable files, is:

A. /home
B. /proc
C. /var
D. /sbin
Answer» E.
Discussion
47.

What command is used to assign executable permission to the owner of the file named "letter"?

A. chmod ugo + x letter
B. chmod u + x letter
C. chmod u + w letter
D. chmod g + x letter
Answer» C. chmod u + w letter
Discussion
48.

What of the following tool is used to check and repair Linux file systems?

A. mkfs
B. fdisk
C. fsck
D. mount
Answer» D. mount
Discussion
49.

After you have compiled your kernel, what do you have to edit to boot your new kernel image?

A. /boot/lilo.conf
B. /etc/conf.modules
C. /etc/named.boot
D. /etc/lilo.conf
Answer» E.
Discussion
50.

What command is used to display your current working directory?

A. path
B. pwd
C. prompt $p$g
D. dir
Answer» C. prompt $p$g
Discussion