Unix Operating System Set 1 MCQs

Q1 | Unix OS was first developed by

dennis ritchie

bjarne stroustrup

ken thompson

brian kernighan

Q2 | Unix OS was first developed at

microsoft corp. usa

at & t bell labs, usa

ibm, usa

borland international, usa

Q3 | Unix is written in

c language

ada language

perl language

pascal language

Q4 | Unix is a

single user, single tasking os

single user, multi-tasking os

multi-user, multi- tasking os

none

Q5 | Which of the following is a command for searching a pattern in a file?

find

b. group

c.look up.

none

Q6 | Unix Command can be typed in

lower case

upper case

both the cases

none

Q7 | Shell Program is stored in a file called

unix

sh

dd

cc

Q8 | WhicBh shell offers a command history feature

c shell

visual shell

bourne shell

korn shell

Q9 | The minimum number of links for any directory file are

3

4

1

2

Q10 | The default value of Umask is

1024

4021

0022

1001

Q11 | Binary executable required for system administration is usually placed in ________ directory.

letc

lusr

ldev

none

Q12 | All user directories are usually placed in _________ directory.

letc

lusr

ldev

none

Q13 | If there are three links for a file then the number of copies of the file would be

one

two

three

four

Q14 | After typing the contents of file test created by you by giving the command cat>test you save the contents by

pressing the keys ctrl-c

typing save and pressing enter

pressing esc key

pressing ctrl-d

Q15 | The file for which we do not have write permission can be deleted using the command

rm-i file

rm-r-file

rm-f-file

Q16 | The permission 746 can be represented as

rwxrwx- -x

rw- -w-r-x

rwxr-xr-x

rwxr- -rw–

Q17 | A Sticky bit applies to a file would mean that

no one can remove it

it would stick around in memory even when its execution is over

next time you login it would get executed on its own

none of the above

Q18 | The command pwd gives

present working directory

password in encrypted form

password in decrypted form

none

Q19 | Which of the following is not a unix command

cd

rm

pwd

del

Q20 | The size of any block in the unix file system is

512 bytes

1024 bytes

2048 bytes

any of the above

Q21 | To find the block size on your file system the command is

blksz

szblk

chksz

cmchk

Q22 | Each entry in inode table is of size

64 kb

32kb

32 bytes

64 bytes

Q23 | The program contained in boot block, that loads kernel into memory is called

disk bootstrap program

master boot program

shell program

none of the above

Q24 | The state of the file system is contained in

boot block

a special block created by book block

super block

none of the above

Q25 | Which file gets executed when we use the passwd command

/etc/passwd

/etc/pwd

/bin/passwd

/passwd