MCQOPTIONS
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MCQOPTIONS
This section includes 358 Mcqs, each offering curated multiple-choice questions to sharpen your Unix knowledge and support exam preparation. Choose a topic below to get started.
| 251. |
___ searches for a first instance of a pattern in forwarding direction |
| A. | / |
| B. | % |
| C. | & |
| D. | ? |
| Answer» B. % | |
| 252. |
__ command allows us to undo a number of changes that have been made to a single line before moving away from that line. |
| A. | u |
| B. | U |
| C. | dd |
| D. | yy |
| Answer» C. dd | |
| 253. |
To copy 10 lines from the current cursor location, we can use ____ |
| A. | 10y |
| B. | 10yy |
| C. | yy10 |
| D. | 10x |
| Answer» C. yy10 | |
| 254. |
To copy (yank) lines in vi editor, we use ______ command. |
| A. | dd |
| B. | x |
| C. | p |
| D. | yy |
| Answer» E. | |
| 255. |
Which of the following commands of ex-mode is equivalent to ‘G’ command in command mode? |
| A. | : . |
| B. | : $ |
| C. | : % |
| D. | :w |
| Answer» C. : % | |
| 256. |
Which key is used for absolute movement? |
| A. | f |
| B. | G |
| C. | M |
| D. | ctrl-g |
| Answer» D. ctrl-g | |
| 257. |
___ command moves the cursor to the end of next line. |
| A. | 0 |
| B. | | |
| C. | % |
| D. | $ |
| Answer» E. | |
| 258. |
Using ‘w’ command we can _________ |
| A. | move back to the beginning of the word |
| B. | move forward to the end of the word |
| C. | move forward to the beginning of the word |
| D. | move back to the end of the word |
| Answer» D. move back to the end of the word | |
| 259. |
Using ‘b’ command we can _________ |
| A. | move back to the beginning of the word |
| B. | move forward to the end of the word |
| C. | move forward to the beginning of the word |
| D. | move back to the end of the word |
| Answer» B. move forward to the end of the word | |
| 260. |
Using ‘e’ command we can __________ |
| A. | move back to the beginning of the word |
| B. | move forward to the end of the word |
| C. | move forward to the beginning of the word |
| D. | move back to the end of the word |
| Answer» C. move forward to the beginning of the word | |
| 261. |
To recover from a crash, we can use ____ command. |
| A. | :recover |
| B. | -r |
| C. | : x |
| D. | :recover and -r |
| Answer» E. | |
| 262. |
To return back to the editor from shell prompt we use _____ command. |
| A. | fg |
| B. | exit |
| C. | back |
| D. | fg and exit |
| Answer» E. | |
| 263. |
In ex-mode, current line is represented by __ |
| A. | : |
| B. | $ |
| C. | > |
| D. | . |
| Answer» E. | |
| 264. |
In ex-mode, last line is represented by _ |
| A. | : |
| B. | $ |
| C. | > |
| D. | . |
| Answer» B. $ | |
| 265. |
Which command is used to abort the editing and quit the editing mode? |
| A. | :w |
| B. | :wq |
| C. | :q |
| D. | ‘:x’ |
| Answer» D. ‘:x’ | |
| 266. |
Which of the following command is a substitute for ‘:x’ command? |
| A. | ‘:x’ |
| B. | :wq |
| C. | :q |
| D. | :w |
| Answer» C. :q | |
| 267. |
Which one of the following is the best way for saving and quitting the editor? |
| A. | ZZ |
| B. | :wq |
| C. | :w |
| D. | ‘:x’ |
| Answer» B. :wq | |
| 268. |
Pressing ‘:’ in command mode invokes which mode of vi editor? |
| A. | ex-mode |
| B. | insert mode |
| C. | command mode |
| D. | input mode |
| Answer» B. insert mode | |
| 269. |
To replace the entire line irrespective of cursor position, we can use ____ command |
| A. | s |
| B. | 10s |
| C. | S |
| D. | 10S |
| Answer» D. 10S | |
| 270. |
To replace 5 characters with new characters, which one of the following will be used? |
| A. | s |
| B. | 5S |
| C. | 5s |
| D. | S |
| Answer» D. S | |
| 271. |
To replace all text on the right of the cursor position, we use ____ command. |
| A. | r |
| B. | R |
| C. | s |
| D. | l |
| Answer» C. s | |
| 272. |
Which one of the following command is used to replace a single character with many? |
| A. | s |
| B. | r |
| C. | R |
| D. | S |
| Answer» B. r | |
| 273. |
Input mode is used for ______ |
| A. | editing text in files |
| B. | invoking commands on files |
| C. | saving files |
| D. | performing substitution |
| Answer» B. invoking commands on files | |
| 274. |
One of the most important features of vi editor is _____ |
| A. | available mostly across all UNIX platforms |
| B. | easy to learn |
| C. | latest editor |
| D. | powerful than other editors |
| Answer» B. easy to learn | |
| 275. |
The first UNIX editor was __ |
| A. | emacs |
| B. | ex |
| C. | ed |
| D. | vi |
| Answer» D. vi | |
| 276. |
While entering text in input mode the data is saved in ___ |
| A. | buffer |
| B. | disk |
| C. | RAM |
| D. | cache |
| Answer» B. disk | |
| 277. |
___ key is used for switching to command mode from input mode. |
| A. | i |
| B. | A |
| C. | : |
| D. | esc |
| Answer» E. | |
| 278. |
Which one of the following key is used to switch from command mode to input mode? |
| A. | i |
| B. | : |
| C. | esc |
| D. | ; |
| Answer» B. : | |
| 279. |
Which symbol is used to change permissions for hidden files? |
| A. | . |
| B. | & |
| C. | $ |
| D. | * |
| Answer» B. & | |
| 280. |
Like chmod, chown and chgrp can also use ___ option. |
| A. | -R |
| B. | -r |
| C. | -x |
| D. | -i |
| Answer» B. -r | |
| 281. |
Which command is used to change the group owner of the file? |
| A. | chown |
| B. | ch |
| C. | chgrp |
| D. | chmod |
| Answer» D. chmod | |
| 282. |
Which character is used to replace ‘ugo’ string in chmod command? |
| A. | a |
| B. | v |
| C. | x |
| D. | o |
| Answer» B. v | |
| 283. |
To remove write permission from group and others, which one of the following commands will be used? |
| A. | chmod go+w file01 |
| B. | chmod go-w file01 |
| C. | chmod ug-w file01 |
| D. | chmod a-w file01 |
| Answer» C. chmod ug-w file01 | |
| 284. |
A file owner does not have a permission to edit the file but the group to which the file owner belong do have the permission to edit it. Can owner edit the file? |
| A. | Yes |
| B. | No |
| C. | Cannot be defined |
| D. | Error will be encountered |
| Answer» C. Cannot be defined | |
| 285. |
The write permission for a directory determines that ______ |
| A. | we can write to a directory file |
| B. | we can read the directory file |
| C. | we can execute the directory file |
| D. | we can add or remove files to it |
| Answer» E. | |
| 286. |
A file contains 1026 bytes. How many bytes of disk space will it consume if size of a disk block is 1024 bytes? |
| A. | 1026 |
| B. | 1024 |
| C. | 2048 |
| D. | 4096 |
| Answer» D. 4096 | |
| 287. |
Which option is used with unzip command to view the contents of a compressed archive? |
| A. | -v |
| B. | -t |
| C. | -c |
| D. | -x |
| Answer» B. -t | |
| 288. |
Which command is used for unzipping files which are compressed using zip command? |
| A. | gunzip |
| B. | gzip |
| C. | unzip |
| D. | guzip |
| Answer» D. guzip | |
| 289. |
o create an archive named abc.tar consisting of two files, file01 and file02, which of the following command will be used? |
| A. | tar –cvf abc.tar file01 file02 |
| B. | tar –cvf file01 file02 abc.tar |
| C. | tar –cv abc.tar file01 file02 |
| D. | tar –c abc.tar file01 file02 |
| Answer» C. tar –cv abc.tar file01 file02 | |
| 290. |
Which of the following is an archival program? |
| A. | arch |
| B. | archive |
| C. | ar |
| D. | tar |
| Answer» E. | |
| 291. |
Which of the following key options is used with tar to create an archive? |
| A. | -c |
| B. | -x |
| C. | -t |
| D. | –f archive name |
| Answer» B. -x | |
| 292. |
Which of the following is not an internal command for more? |
| A. | q |
| B. | f |
| C. | b |
| D. | z |
| Answer» E. | |
| 293. |
UNIX offers a pager named ____ which has replaced the original pager of UNIX called ____ |
| A. | more, less |
| B. | less, more |
| C. | more, pg |
| D. | pg, more |
| Answer» D. pg, more | |
| 294. |
Which option is used for printing multiple copies of a file using lp command? |
| A. | -l |
| B. | -i |
| C. | -t |
| D. | -n |
| Answer» E. | |
| 295. |
Which option is used with lp command if there are more than one printers in the system? |
| A. | -t |
| B. | -d |
| C. | -i |
| D. | -p |
| Answer» C. -i | |
| 296. |
Which option is used for counting the number of characters in a file only. |
| A. | -l |
| B. | -w |
| C. | -c |
| D. | -w |
| Answer» D. -w | |
| 297. |
Which command is used for printing a file? |
| A. | lp |
| B. | pr |
| C. | pg |
| D. | more |
| Answer» B. pr | |
| 298. |
Which option is used for counting the number of words in a file only? |
| A. | -l |
| B. | -w |
| C. | -c |
| D. | -W |
| Answer» E. | |
| 299. |
When two files are identical, what is the output of diff command? |
| A. | Files are identical |
| B. | Returns prompt |
| C. | No output |
| D. | Throws an error |
| Answer» C. No output | |
| 300. |
Which command is used to display the differences between files? |
| A. | comm |
| B. | diff |
| C. | cmp |
| D. | differ |
| Answer» C. cmp | |