McqMate
| 101. |
Which command is used to extract specific columns from the file? |
| A. | cut |
| B. | grep |
| C. | past |
| D. | cat |
| Answer» A. cut | |
| 102. |
Which command is used with vi editor to move the cursor to the left? |
| A. | i |
| B. | k |
| C. | j |
| D. | h |
| Answer» D. h | |
| 103. |
Which command is used to create a directory? |
| A. | crdir |
| B. | mkdir |
| C. | md |
| D. | cr |
| Answer» B. mkdir | |
| 104. |
Which of the following changes permission to deny write permission to group and others? |
| A. | chmod go-w filex |
| B. | chmod go w filex |
| C. | chmod go=w file |
| D. | none of the above |
| Answer» A. chmod go-w filex | |
| 105. |
Which command is used with vi editor to delete a single character? |
| A. | z |
| B. | y |
| C. | a |
| D. | x |
| Answer» D. x | |
| 106. |
The tar command in UNIX |
| A. | used to create compressed archives of directories and files |
| B. | used to extract directories and files from an archives |
| C. | both a and b |
| D. | none of the above |
| Answer» C. both a and b | |
| 107. |
Which command is used to sort the lines of data in a file in reverse order |
| A. | sort |
| B. | sh |
| C. | st |
| D. | sort -r |
| Answer» D. sort -r | |
| 108. |
Which of the following commands is used to rename a file? |
| A. | rename |
| B. | mv |
| C. | remove |
| D. | ren |
| Answer» B. mv | |
| 109. |
Which command is used to display a file contents in octal form? |
| A. | cd |
| B. | of |
| C. | od |
| D. | oct |
| Answer» C. od | |
| 110. |
Which of the following commands is used to count the total number of lines,words and characters contained in a file? |
| A. | count p |
| B. | wcount |
| C. | wc |
| D. | count w |
| Answer» C. wc | |
| 111. |
The cc command makes a total of |
| A. | 1 pass |
| B. | 2 pass |
| C. | 4 pass |
| D. | 5 pass |
| Answer» D. 5 pass | |
| 112. |
Which of the following commands is used for an automatic remainder service? |
| A. | write |
| B. | calender |
| C. | |
| D. | mesg |
| Answer» B. calender | |
| 113. |
The Unix command used to find out the number of characters in a file is |
| A. | nc |
| B. | wc |
| C. | chcnt |
| D. | c |
| Answer» B. wc | |
| 114. |
In a system ,if 5 people are currently using vi editor ,then the number of corresponding processes will be |
| A. | 1 |
| B. | 5 |
| C. | 3 |
| D. | 0 |
| Answer» B. 5 | |
| 115. |
Which set option is used with vi editor to display line numbers on screen? |
| A. | nm |
| B. | nu |
| C. | ic |
| D. | li |
| Answer» B. nu | |
| 116. |
Which command will be used with vi editor to move back to the beginning of a word? |
| A. | b |
| B. | e |
| C. | a |
| D. | w |
| Answer» A. b | |
| 117. |
Which of the following are not system calls? |
| A. | chmod |
| B. | open |
| C. | lseek |
| D. | getc |
| Answer» D. getc | |
| 118. |
The advantage of binary files over text files is that |
| A. | it is compact |
| B. | it can be accessed faster |
| C. | many commands assume the named file to be a binary file |
| D. | they are more reliable |
| Answer» D. they are more reliable | |
| 119. |
The cat command is used to |
| A. | print a file |
| B. | display a file |
| C. | capture a file |
| D. | copy a file |
| Answer» B. display a file | |
| 120. |
Command compares two files byte by byte and displays the first mismatch. |
| A. | cmp |
| B. | comp |
| C. | cmap |
| D. | none of these |
| Answer» A. cmp | |
| 121. |
When the read system call encounters EOF ,it returns |
| A. | some positive integer |
| B. | some negative integer |
| C. | 0 |
| D. | -1 |
| Answer» C. 0 | |
| 122. |
Which of the following system calls,does not return control to the calling point, on termination? |
| A. | fork |
| B. | exec |
| C. | ioct1 |
| D. | longjmp |
| Answer» B. exec | |
| 123. |
Which command is used to display the characteristics of a process? |
| A. | pid |
| B. | ps |
| C. | du |
| D. | au |
| Answer» D. au | |
| 124. |
Which command is used to display and create files? |
| A. | cat |
| B. | ed |
| C. | vi |
| D. | lyrix |
| Answer» A. cat | |
| 125. |
Files that can store data in the same format as used in program are called |
| A. | binary files |
| B. | source file |
| C. | text file |
| D. | core |
| Answer» A. binary files | |
| 126. |
The file that stores an integer as a sequence of characters is a |
| A. | text file |
| B. | data file |
| C. | binary file |
| D. | core |
| Answer» A. text file | |
| 127. |
Which is the earliest and most widely used shell that came with the UNIX system? |
| A. | c shell |
| B. | korn shell |
| C. | bourne shell |
| D. | smith shell |
| Answer» C. bourne shell | |
| 128. |
System call mknod creates a |
| A. | new file |
| B. | new directory |
| C. | new binary file |
| D. | none of these |
| Answer» B. new directory | |
| 129. |
A pipe a mechanism that allow a stream of data between to be passed between…….. |
| A. | reader and writer process |
| B. | reader process |
| C. | writer process |
| D. | none of these |
| Answer» A. reader and writer process | |
| 130. |
Which command is used to display the top of the file? |
| A. | cat |
| B. | head |
| C. | more |
| D. | grep |
| Answer» B. head | |
| 131. |
Which of the following keys is used to replace a single character with new text? |
| A. | s |
| B. | s |
| C. | r |
| D. | c |
| Answer» B. s | |
| 132. |
Which command sends the word count of the file infile to the newfile. |
| A. | wc infile >newfile |
| B. | wc <infile >newfile |
| C. | wc infile - newfile |
| D. | wc infile | newfile |
| Answer» A. wc infile >newfile | |
| 133. |
Which command is used to remove the read permission of the file 'note' from both the group and others? |
| A. | chmod go+r note |
| B. | chmod go+rw note |
| C. | chmod go-x note |
| D. | chmod go-r, 4-x note |
| Answer» D. chmod go-r, 4-x note | |
| 134. |
Which of the following commands is used to display the directory attributes rather than its contents? |
| A. | ls -1 -d |
| B. | ls -1 |
| C. | ls -x |
| D. | ls -f |
| Answer» A. ls -1 -d | |
| 135. |
Which of the following files will displayed by this command cat *ch* |
| A. | patch |
| B. | catch |
| C. | .ch |
| D. | all of the above |
| Answer» D. all of the above | |
| 136. |
If you are to use [Control-c] as the interrupt key instead of [Del], then you will have to use |
| A. | tty ^c |
| B. | stty intr \\^c |
| C. | stty echoe |
| D. | stty echo \\^a |
| Answer» B. stty intr \\^c | |
| 137. |
Which of the following keys is used to move the cursor to the end of the paragraph. |
| A. | } |
| B. | { |
| C. | | |
| D. | $ |
| Answer» A. } | |
| 138. |
Which command is used to concatenate all files beginning with the string 'emp' and followed by a non-numeric characters? |
| A. | cat emp[!0-9] |
| B. | more [emp][!0-9] |
| C. | cat emp[x-z] |
| D. | cat emp[a-z] |
| Answer» A. cat emp[!0-9] | |
| 139. |
The command which transcribes the standard input to the standard output and also makes a copy of the same in a file is |
| A. | tee |
| B. | tr |
| C. | sort |
| D. | grep |
| Answer» A. tee | |
| 140. |
Which symbol is used to separate more than one command in the same command line? |
| A. | $ |
| B. | # |
| C. | : |
| D. | ; |
| Answer» D. ; | |
| 141. |
The agency that sits between the user and the UNIX system is called the |
| A. | logic |
| B. | profile |
| C. | shell |
| D. | erxc |
| Answer» C. shell | |
| 142. |
Which of the following commands is used to update access and modification times of a file? |
| A. | grep |
| B. | wc |
| C. | touch |
| D. | cat |
| Answer» C. touch | |
| 143. |
Which command is used to count just the number of characters in a file? |
| A. | wc - 1 |
| B. | wc -c |
| C. | wc -w |
| D. | wc -r |
| Answer» B. wc -c | |
| 144. |
Which of the following commands is used to list contents of directories? |
| A. | ls |
| B. | lp |
| C. | dir |
| D. | tar |
| Answer» A. ls | |
| 145. |
In vi editor, forward search is performed using the command. |
| A. | :pat |
| B. | :pat |
| C. | /pat |
| D. | all of the above |
| Answer» D. all of the above | |
| 146. |
Which of the following special shell variables is used to process number of the last background job? |
| A. | $! |
| B. | $# |
| C. | 0 |
| D. | $* |
| Answer» A. $! | |
| 147. |
Which option will be used with ps command to slow the entire command line of the process being run? |
| A. | -4 |
| B. | -f |
| C. | -1 |
| D. | -4 |
| Answer» B. -f | |
| 148. |
Which of the following command addresses all users who are currently hooked on? |
| A. | write |
| B. | |
| C. | wall |
| D. | mesg |
| Answer» C. wall | |
| 149. |
Which of the following directories contain all the Ales created by a user, including his login directory? |
| A. | /tmp |
| B. | /etc |
| C. | /usr |
| D. | /dev |
| Answer» C. /usr | |
| 150. |
Which of the following commands is used to obtain a list of all files by modification time? |
| A. | ls -1 |
| B. | ls -t |
| C. | ls -i |
| D. | ls -r |
| Answer» B. ls -t | |
| 151. |
Which command is used to display the characteristics of a process? |
| A. | pid |
| B. | du |
| C. | ps |
| D. | au |
| Answer» C. ps | |
| 152. |
The filed separator in cut command is specified with |
| A. | -a option |
| B. | -d option |
| C. | -r option |
| D. | -x option |
| Answer» B. -d option | |
| 153. |
Which option will be used with touch command to change the access time? |
| A. | -a |
| B. | -b |
| C. | -t |
| D. | -h |
| Answer» A. -a | |
| 154. |
Which command is used to make all files and sub-directories in the directory (progs) executable by all users? |
| A. | chmod -r a+x progs |
| B. | chmod -r 222 progs |
| C. | chmod -1 a+x progs |
| D. | chmod -x a+x progs |
| Answer» A. chmod -r a+x progs | |
| 155. |
The second set of the three permissions (r-) indicates that |
| A. | group has read permission only |
| B. | other has read permission only |
| C. | owner has read permission only |
| D. | group has write permission only |
| Answer» A. group has read permission only | |
| 156. |
Which column contains all details of the permissions of a file when you issue the ls - l command? |
| A. | second |
| B. | fourth |
| C. | third |
| D. | first |
| Answer» D. first | |
| 157. |
Which of the following commands is used to display your working directory? |
| A. | second |
| B. | fourth |
| C. | third |
| D. | first |
| Answer» C. third | |
| 158. |
While working with mail command, which command is used to save mail i a separate file? |
| A. | s |
| B. | r |
| C. | w |
| D. | d |
| Answer» A. s | |
| 159. |
Which command is used to terminate a process? |
| A. | shutdown |
| B. | haltsys |
| C. | cancel |
| D. | kill |
| Answer» D. kill | |
| 160. |
The cp command uses: |
| A. | standard input file |
| B. | standard output file |
| C. | both input and output file |
| D. | neither standard input nor standard output file |
| Answer» D. neither standard input nor standard output file | |
| 161. |
Which command is used to print a file? |
| A. | |
| B. | prn |
| C. | pg |
| D. | lp |
| Answer» D. lp | |
| 162. |
Which command is used to list out all the hidden files along with the other files? |
| A. | ls -l |
| B. | ls -x |
| C. | ls -f |
| D. | ls -a |
| Answer» D. ls -a | |
| 163. |
Which command is used with vi editor to search a pattern in the forward direction? |
| A. | / |
| B. | ? |
| C. | // |
| D. | ?? |
| Answer» A. / | |
| 164. |
The command to count the number of files in the current directory by using pipes, is |
| A. | ls | wc |
| B. | ls -l | ws -l |
| C. | ls | wc -w |
| D. | ls | ws -c |
| Answer» C. ls | wc -w | |
| 165. |
Which of the following commands is used to get directory one level up? |
| A. | cd |
| B. | cd .. |
| C. | cd/ |
| D. | chdir |
| Answer» B. cd .. | |
| 166. |
Which of the following commands is used to count the total number of lines, words, and characters contained in a file. |
| A. | count p |
| B. | wc |
| C. | wcount |
| D. | countw |
| Answer» B. wc | |
| 167. |
Which command is used to delete all files in the current directory as well as all files and sub-directories in its subdirectories? |
| A. | rm * |
| B. | rm -r * |
| C. | rm all |
| D. | rm *.* |
| Answer» B. rm -r * | |
| 168. |
Which of the following commands is used to change the working directory? |
| A. | cd |
| B. | changedir |
| C. | chdir |
| D. | cdir |
| Answer» A. cd | |
| 169. |
Services provided by kernel are……… |
| A. | controlling execution of process |
| B. | scheduling processes |
| C. | allocating main memory for an executing process |
| D. | all of these |
| Answer» D. all of these | |
| 170. |
The shell acts as an interface between the ……….. |
| A. | user and kernel |
| B. | user and operating system |
| C. | kernel and operating system |
| D. | none of these |
| Answer» A. user and kernel | |
| 171. |
When a process executes a system call, the execution mode of the process changes from ……….. |
| A. | kernel mode to user mode |
| B. | user mode to kernel mode |
| C. | user mode to operating system mode |
| D. | none of these |
| Answer» B. user mode to kernel mode | |
| 172. |
when the kernel services an intrrupt, it blocks out low priority interrupts but……….. |
| A. | services middle priority interrupt |
| B. | services higher priority interrupts |
| C. | both a and b |
| D. | none of these |
| Answer» B. services higher priority interrupts | |
| 173. |
The commonly used UNIX commands like date, ls, cat, etc. are stored in……….. |
| A. | /dev directory |
| B. | /bin and /usr/bin directories |
| C. | /tmp directory |
| D. | /unix directory |
| Answer» B. /bin and /usr/bin directories | |
| 174. |
Which of the following commands is used to summarize the disk usage? |
| A. | chkdsk |
| B. | fdisk |
| C. | du |
| D. | disk |
| Answer» C. du | |
| 175. |
Which command is used to sort the lines of data in a file in alphabetical order? |
| A. | sort |
| B. | sh |
| C. | st |
| D. | sort -r |
| Answer» A. sort | |
| 176. |
If a file has read and write permissions for the owner, then the octal representation of the permissions will be |
| A. | 1 |
| B. | 6 |
| C. | 5 |
| D. | 3 |
| Answer» B. 6 | |
| 177. |
Which command is used to copy a file wb with the same name from the programs directory to the misc directory? |
| A. | copy programs/wb misc/wb |
| B. | cp programs/wb misc |
| C. | tar programs/wb misc/wb |
| D. | copy a:programs/wb b:misc/wb |
| Answer» B. cp programs/wb misc | |
| 178. |
The seventh field of /etc/password is…………. |
| A. | password |
| B. | login |
| C. | shell |
| D. | home |
| Answer» C. shell | |
| 179. |
Which command is used to display the end of the file? |
| A. | head - r |
| B. | tail |
| C. | eof |
| D. | bof |
| Answer» B. tail | |
| 180. |
The ls -l command tells |
| A. | who the owner of the file is |
| B. | the name of the group owner of the file |
| C. | how large the file is and when the file was last modified. |
| D. | all of the above |
| Answer» D. all of the above | |
| 181. |
Which option will be used with disk free command to include the total amount of disk space in the file system? |
| A. | -t |
| B. | -tt |
| C. | -4 |
| D. | -i |
| Answer» A. -t | |
| 182. |
Which command is used to set the three permissions for all the three categories of users of a file? |
| A. | chgrp |
| B. | chown |
| C. | chmod |
| D. | chusr |
| Answer» C. chmod | |
| 183. |
Which of the following commands can be used to get information about yourself? |
| A. | who am i |
| B. | i /4 |
| C. | pwd |
| D. | which |
| Answer» A. who am i | |
| 184. |
Which of the following commands can be used to get information about all users who are currently logged into the system? |
| A. | which |
| B. | who |
| C. | who am i |
| D. | 1 /u |
| Answer» B. who | |
| 185. |
Which of the following keys is used to overstrike a whole line? |
| A. | r |
| B. | v |
| C. | c |
| D. | u |
| Answer» A. r | |
| 186. |
Which command is used to locate all the .profile files in the system? |
| A. | ls profile |
| B. | find /-name profile print |
| C. | cd /.profile |
| D. | l -u .profile |
| Answer» B. find /-name profile print | |
| 187. |
The File that contains a set of instructions which are performed when a user logs in, is |
| A. | .exrc |
| B. | .profile |
| C. | .autoexec |
| D. | autoexec.bat |
| Answer» B. .profile | |
| 188. |
The octal representation 652 indicates |
| A. | execute permission for the owner |
| B. | write permission for others |
| C. | read and write permission of groups |
| D. | all of the above |
| Answer» B. write permission for others | |
| 189. |
Which of the following command is used to count just the number of lines contained in a file? |
| A. | wc -l |
| B. | wc -c |
| C. | wc -w |
| D. | wc -r |
| Answer» A. wc -l | |
| 190. |
Which command is used to move all files to the bin sub-directory of the parent directory? |
| A. | mv *.* /bin/ |
| B. | mv * /bin/* |
| C. | mv * ../bin |
| D. | mv * ../bin *.* |
| Answer» C. mv * ../bin | |
| 191. |
Which command is used to save the standard output in a file, as well as display it on the terminal? |
| A. | more |
| B. | cat |
| C. | grep |
| D. | tee |
| Answer» D. tee | |
| 192. |
Which of the following commands is used to copy directory structures in and out |
| A. | cp |
| B. | cpio |
| C. | cp - p |
| D. | copy |
| Answer» B. cpio | |
| 193. |
Which command allows you to view your file 24 lines at a time? |
| A. | more |
| B. | pg |
| C. | cat |
| D. | lp |
| Answer» B. pg | |
| 194. |
Which of the following special shell variables is used to process number of the current shell? |
| A. | $! |
| B. | $$ |
| C. | 0 |
| D. | $* |
| Answer» B. $$ | |
| 195. |
Which option is used with cmp command to give a detailed list of the byte number and the differing bytes in octal for each character that differs in both the files? |
| A. | -l |
| B. | -d |
| C. | -r |
| D. | -b |
| Answer» A. -l | |
| 196. |
Which command is used with vi editor scroll half page backward? |
| A. | [control-d] |
| B. | [control - u] |
| C. | [control-c] |
| D. | [control -p] |
| Answer» B. [control - u] | |
| 197. |
Which command is used with vi editor to move cursor forward to first occurrence of character 'ch' in the current line? |
| A. | tch |
| B. | fch |
| C. | rch |
| D. | ech |
| Answer» B. fch | |
| 198. |
Which of the following keys is used to delete the character beneath the cursor? |
| A. | x |
| B. | x |
| C. | dd |
| D. | d |
| Answer» A. x | |
| 199. |
Which command is used to assign only read permission to all three categories of the file 'note'? |
| A. | chmod go+r note |
| B. | chmod a-rw |
| C. | chmod ugo=r note |
| D. | chmod u+r,g+r,o x note |
| Answer» C. chmod ugo=r note | |
| 200. |
Which command will be used with vi editor to append text at end of line? |
| A. | a |
| B. | a |
| C. | i |
| D. | i |
| Answer» A. a | |
Done Reading?