Unix Operating System solved MCQs

a. dennis ritchie

B. bjarne stroustrup

c. ken thompson

d. brian kernighan

a. microsoft corp. usa

B. at & t bell labs, usa

c. ibm, usa

d. borland international, usa

a. c language

B. ada language

c. perl language

d. pascal language

a. single user, single tasking os

B. single user, multi-tasking os

c. multi-user, multi- tasking os

d. none

a. find

B. b. group

c. c.look up.

d. none

a. lower case

B. upper case

c. both the cases

d. none

a. unix

B. sh

c. dd

d. cc

a. c shell

B. visual shell

c. bourne shell

d. korn shell

a. 3

B. 4

c. 1

d. 2

a. 1024

B. 4021

c. 0022

d. 1001

a. letc

B. lusr

c. ldev

d. none

a. letc

B. lusr

c. ldev

d. none

a. one

B. two

c. three

d. four

a. pressing the keys ctrl-c

B. typing save and pressing enter

c. pressing esc key

d. pressing ctrl-d

a. rm-i file

B. rm-i file

c. rm-r-file

d. rm-f-file

a. rwxrwx- -x

B. rw- -w-r-x

c. rwxr-xr-x

d. rwxr- -rw–

a. no one can remove it

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

c. next time you login it would get executed on its own

d. none of the above

a. present working directory

B. password in encrypted form

c. password in decrypted form

d. none

a. cd

B. rm

c. pwd

d. del

a. 512 bytes

B. 1024 bytes

c. 2048 bytes

d. any of the above

a. blksz

B. szblk

c. chksz

d. cmchk

a. 64 kb

B. 32kb

c. 32 bytes

d. 64 bytes

a. disk bootstrap program

B. master boot program

c. shell program

d. none of the above

a. boot block

B. a special block created by book block

c. super block

d. none of the above

a. /etc/passwd

B. /etc/pwd

c. /bin/passwd

d. /passwd