McqMate
These multiple-choice questions (MCQs) are designed to enhance your knowledge and understanding in the following areas: Computer Science Engineering (CSE) .
| 401. |
The administrative information of a file is stored in |
| A. | vnode |
| B. | dnode |
| C. | inode |
| D. | snode |
| Answer» C. inode | |
| 402. |
The -t option to ls is used for |
| A. | sort according to time |
| B. | sor according to date |
| C. | sort according to name |
| D. | sort according to size |
| Answer» A. sort according to time | |
| 403. |
The systems internal name to file is |
| A. | id |
| B. | i-number |
| C. | pid |
| D. | pid_t |
| Answer» B. i-number | |
| 404. |
The first tow bytes in each directory entry are |
| A. | connection between id and name |
| B. | connection between name of file and its contents |
| C. | connection between if and its contents |
| D. | connection betweeen id and contents |
| Answer» B. connection between name of file and its contents | |
| 405. |
The rm command removes |
| A. | directory entries |
| B. | removes inodes |
| C. | removes names |
| D. | removes files |
| Answer» A. directory entries | |
| 406. |
primary parts oc c comipler is in |
| A. | /dev |
| B. | /lib |
| C. | /bin |
| D. | /etc |
| Answer» B. /lib | |
| 407. |
The basic program such as who and ed resids in |
| A. | /dev |
| B. | /lib |
| C. | /bin |
| D. | /etc |
| Answer» C. /bin | |
| 408. |
various administrative fils such as password file in |
| A. | /dev |
| B. | /lib |
| C. | /bin |
| D. | /etc |
| Answer» D. /etc | |
| 409. |
Short lived files created during execution are stored in |
| A. | /tmp |
| B. | /lib |
| C. | /bin |
| D. | /etc |
| Answer» A. /tmp | |
| 410. |
which of following features of UNIX may be used for IPC |
| A. | signals |
| B. | ipes |
| C. | semaphores |
| D. | all of these |
| Answer» D. all of these | |
| 411. |
In a system 5 peole are currently using VI editor, then no. of currosonding rocesses will be |
| A. | 1 |
| B. | 5 |
| C. | 2 |
| D. | 0 |
| Answer» B. 5 | |
| 412. |
the command echo welcome >/dev/tty |
| A. | echoes welcome in all the gtermonals that are switched on |
| B. | echoes welcome in all the terminals which are logged on |
| C. | echoes welcomes only in terminal in which it is run |
| D. | a&c |
| Answer» D. a&c | |
| 413. |
dev/nul |
| A. | it is a file |
| B. | has write operation for all |
| C. | built in dest bin |
| D. | all of these |
| Answer» D. all of these | |
| 414. |
The advantage of binary files over text file is |
| A. | it is compact |
| B. | it can be accessed faster. |
| C. | they are more reliable |
| D. | all of these |
| Answer» D. all of these | |
| 415. |
UNIX uses ls to list files in a directory. The corresponding command in MS environment is |
| A. | lf |
| B. | listdir |
| C. | dir |
| D. | none of these |
| Answer» C. dir | |
| 416. |
For some file the access permissions are modified to 764. Which of the following interpretation is valid: |
| A. | every one can read, group can execute only and the owner can read and write. |
| B. | every one can read and write, but owner alone can execute. |
| C. | every one can read, group including owner can write, owner alone can execute |
| D. | none of these |
| Answer» C. every one can read, group including owner can write, owner alone can execute | |
| 417. |
Which directory under the root contains the information on devices |
| A. | /usr/bin |
| B. | /dev |
| C. | /usr/peripherals/de v |
| D. | /etc/dev |
| Answer» B. /dev | |
| 418. |
Which option makes the command to ask the user for confirmation before removing each file |
| A. | rm-i |
| B. | rm-r |
| C. | rm-f |
| D. | rm-rf |
| Answer» A. rm-i | |
| 419. |
which opttion deletes all files in the current directory and all its subdirectories |
| A. | rm-i |
| B. | rm-r |
| C. | rm-f |
| D. | rm-rf |
| Answer» B. rm-r | |
| 420. |
which option is used for forcing removal operation |
| A. | rm-i |
| B. | rm-r |
| C. | rm-f |
| D. | rm-rf |
| Answer» C. rm-f | |
| 421. |
which option in used for deleting everything in current directory and below. |
| A. | rm-i |
| B. | rm-r |
| C. | rm-f |
| D. | rm-rf |
| Answer» D. rm-rf | |
| 422. |
which command is used for renaming a file |
| A. | mv |
| B. | cp |
| C. | rm |
| D. | cv |
| Answer» A. mv | |
| 423. |
which command is used for displaying contents of a file |
| A. | mv |
| B. | cp |
| C. | rm |
| D. | cv |
| Answer» B. cp | |
| 424. |
which command is used for copying a file |
| A. | mv |
| B. | cp |
| C. | rm |
| D. | cv |
| Answer» C. rm | |
| 425. |
Which command is used to determine a type of file |
| A. | infile |
| B. | file |
| C. | wc |
| D. | cp |
| Answer» B. file | |
| 426. |
Whcich command is used for word count |
| A. | infile |
| B. | file |
| C. | wc |
| D. | cp |
| Answer» C. wc | |
| 427. |
The command for changing file owener is |
| A. | chown |
| B. | chgrp |
| C. | chmod |
| D. | cher |
| Answer» A. chown | |
| 428. |
The command for changing group owner is |
| A. | chown |
| B. | chgrp |
| C. | chmod |
| D. | cher |
| Answer» B. chgrp | |
| 429. |
The vi editor is working in which mode of following |
| A. | command |
| B. | input |
| C. | ex |
| D. | all of these |
| Answer» D. all of these | |
| 430. |
command mode allows operation of |
| A. | copy and delete |
| B. | cut and copy |
| C. | paste and delete |
| D. | copy and cut |
| Answer» A. copy and delete | |
| 431. |
Input mode is used for |
| A. | to show text |
| B. | to copy text |
| C. | to provide command |
| D. | all of these |
| Answer» A. to show text | |
| 432. |
ex mode is used for |
| A. | handling files and erform substitution |
| B. | copy and delete |
| C. | to show text |
| D. | to hide text |
| Answer» A. handling files and erform substitution | |
| 433. |
:x is used for |
| A. | saving and editing |
| B. | editing and aborting |
| C. | writing |
| D. | saving |
| Answer» A. saving and editing | |
| 434. |
:q is used for |
| A. | saving and editing |
| B. | editing and aborting |
| C. | writing |
| D. | saving |
| Answer» B. editing and aborting | |
| 435. |
:w is used for |
| A. | saving and editing |
| B. | editing and aborting |
| C. | writing |
| D. | saving |
| Answer» D. saving | |
| 436. |
!cmd is used for |
| A. | saving and editing |
| B. | editing and aborting |
| C. | to runs cmd and return to command prompt |
| D. | saving |
| Answer» C. to runs cmd and return to command prompt | |
| 437. |
which of the following are archive command |
| A. | tar -c |
| B. | tar-x |
| C. | tar-t |
| D. | all of these |
| Answer» D. all of these | |
| 438. |
which command is used for creating an archive |
| A. | tar -c |
| B. | tar-x |
| C. | tar-t |
| D. | all of these |
| Answer» A. tar -c | |
| 439. |
whicj command is used for displaying file in archieve |
| A. | tar -c |
| B. | tar-x |
| C. | tar-t |
| D. | all of these |
| Answer» C. tar-t | |
| 440. |
which command is used for extracting file sfrom arcieve |
| A. | tar -c |
| B. | tar-x |
| C. | tar-t |
| D. | all of these |
| Answer» B. tar-x | |
| 441. |
Which command is used for specifying archieve arch |
| A. | tar -c |
| B. | tar-x |
| C. | tar-t |
| D. | #name? |
| Answer» D. #name? | |
| 442. |
the file access permission types are |
| A. | r-- read |
| B. | w-- write |
| C. | x-- execute |
| D. | all of these |
| Answer» D. all of these | |
| 443. |
it --- means |
| A. | no permission |
| B. | execute only |
| C. | writable only |
| D. | writable and executable |
| Answer» A. no permission | |
| 444. |
it --- x means |
| A. | no permission |
| B. | execute only |
| C. | writable only |
| D. | writable and executable |
| Answer» B. execute only | |
| 445. |
it -w- means |
| A. | no permission |
| B. | execute only |
| C. | writable only |
| D. | writable and executable |
| Answer» C. writable only | |
| 446. |
it -wx means |
| A. | no permission |
| B. | execute only |
| C. | writable only |
| D. | writable and executable |
| Answer» D. writable and executable | |
| 447. |
it r-- means |
| A. | readable |
| B. | readable and executable |
| C. | readable and writable |
| D. | readable, writable and executable |
| Answer» A. readable | |
| 448. |
it r-x means |
| A. | readable |
| B. | readable and executable |
| C. | readable and writable |
| D. | readable, writable and executable |
| Answer» B. readable and executable | |
| 449. |
it rw- means |
| A. | readable |
| B. | readable and executable |
| C. | readable and writable |
| D. | readable, writable and executable |
| Answer» C. readable and writable | |
| 450. |
It rwx means |
| A. | readable |
| B. | readable and executable |
| C. | readable and writable |
| D. | readable, writable and executable |
| Answer» D. readable, writable and executable | |
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