McqMate
These multiple-choice questions (MCQs) are designed to enhance your knowledge and understanding in the following areas: Master of Computer Applications (MCA) , Programming Languages .
Chapters
| 51. |
Which of the following commands is used to summarize the disk usage? |
| A. | chkdsk |
| B. | du |
| C. | fdisk |
| D. | disk |
| Answer» B. du | |
| 52. |
Which of the following commands is used to copy directory structures in and out? |
| A. | cp |
| B. | cp-p |
| C. | cpio |
| D. | copy |
| Answer» C. cpio | |
| 53. |
Which of the following commands is used to change the working directory? |
| A. | cd |
| B. | chdir |
| C. | changedir |
| D. | cdir |
| Answer» A. cd | |
| 54. |
Which of the following commands is used to count the total number of line, words and characters contained in a file? |
| A. | count p |
| B. | wcount |
| C. | wc |
| D. | countw |
| Answer» C. wc | |
| 55. |
Which of the following commands is used to list contents of directories? |
| A. | 1s |
| B. | dir |
| C. | 1p |
| D. | tar |
| Answer» A. 1s | |
| 56. |
Which of the following commands is used to list remove files? |
| A. | erase |
| B. | rm |
| C. | delete |
| D. | dm |
| Answer» B. rm | |
| 57. |
Which of the following commands is used to count just the number of lines contained in a file? |
| A. | wc – 1 |
| B. | wc - w |
| C. | wc - c |
| D. | wc - r |
| Answer» A. wc – 1 | |
| 58. |
Which of the following directories contain all the files created by a user, including his login directory? |
| A. | /tmp |
| B. | /usr |
| C. | /etc |
| D. | /dev |
| Answer» B. /usr | |
| 59. |
Which command is used to copy the three files wb, collect and mon into the misc directory, under the same, when you were currently in the programs directory? |
| A. | copywb collect mon /mis |
| B. | cpwb collect mon ../misc |
| C. | copywb ../misccollect ../mismon ../misc |
| D. | tarwb collect mon /misc |
| Answer» B. cpwb collect mon ../misc | |
| 60. |
Which command is used to assign only read permission to all three categories of the file ‘note’? |
| A. | chmod a-rw |
| B. | chmodgo+r note |
| C. | chmodugo = r = note |
| D. | chmodu+r, g+r, o-x note |
| Answer» C. chmodugo = r = note | |
| 61. |
Which command is used to make all files and sub-directories in the directory (prog) executable by all users? |
| A. | chmod –R a+xprogs |
| B. | chmod –x a+xprogs |
| C. | chmod -1 a+xprogs |
| D. | chmod –R 222 progs |
| Answer» A. chmod –R a+xprogs | |
| 62. |
The chmodugo+rw note command can be represented in octal notation as |
| A. | chmod 555 note |
| B. | chmod 666 note |
| C. | chmod 333 note |
| D. | chmod 444 note |
| Answer» B. chmod 666 note | |
| 63. |
Which of the following commands is used to view the file 24 lines at a time? |
| A. | pg |
| B. | 1p |
| C. | cat |
| D. | /p |
| Answer» A. pg | |
| 64. |
The second set of the three permissions (r-) indicates that |
| A. | group has read permission only |
| B. | other has read permission only |
| C. | group has write permission only |
| D. | owner has read permission only |
| Answer» A. group has read permission only | |
| 65. |
The dmesg command |
| A. | Shows user login logoff attempts |
| B. | Shows the syslog file for info messages |
| C. | Kernel log messages |
| D. | Shows the daemon log messages |
| Answer» C. Kernel log messages | |
| 66. |
The command “mknodmyfifo b 4 16” |
| A. | Will create a block device if user is root |
| B. | Will create a block device for all users |
| C. | Will create a FIFO if user is not root |
| D. | None of the above |
| Answer» A. Will create a block device if user is root | |
| 67. |
Which command is used to set terminal IO characteristic? |
| A. | tty |
| B. | ctty |
| C. | ptty |
| D. | stty |
| Answer» D. stty | |
| 68. |
Which command is used to record a user login session in a file ? |
| A. | macro |
| B. | read |
| C. | script |
| D. | none of the above |
| Answer» C. script | |
| 69. |
Which command is used to display the operating system name ? |
| A. | os |
| B. | Unix |
| C. | kernel |
| D. | uname |
| Answer» D. uname | |
| 70. |
Which command is used to display the unix version ? |
| A. | uname -r |
| B. | uname -n |
| C. | uname -t |
| D. | kernel |
| Answer» A. uname -r | |
| 71. |
Which command is used to print a file ? |
| A. | |
| B. | ptr |
| C. | lpr |
| D. | none of the above |
| Answer» C. lpr | |
| 72. |
Using which command you find resource limits to the session? |
| A. | rlimit |
| B. | ulimit |
| C. | setrlimit |
| D. | getrlimit |
| Answer» B. ulimit | |
| 73. |
Which option of ls command used to view file inode number ? |
| A. | –l |
| B. | -o |
| C. | –a |
| D. | –i |
| Answer» D. –i | |
| 74. |
Find / -name ‘*’ will |
| A. | List all files and directories recursively starting from / |
| B. | List a file named * in / |
| C. | List all files in / directory |
| D. | List all files and directories in / directory |
| Answer» A. List all files and directories recursively starting from / | |
| 75. |
In which directory can you store system user default files used for creating user directories? |
| A. | /usr/tmp |
| B. | /etc/default |
| C. | /etc/skel |
| D. | /etc/users |
| Answer» C. /etc/skel | |
| 76. |
What command do you use to create Linux file systems? |
| A. | fdisk |
| B. | mkfs |
| C. | fsck |
| D. | mount |
| Answer» B. mkfs | |
| 77. |
What command is used to display the characteristics of a process? |
| A. | au |
| B. | ps |
| C. | du |
| D. | pid |
| Answer» B. ps | |
| 78. |
What command is used to list the files chap0l, chap02 and chap04? |
| A. | ls chap* |
| B. | ls chap[124] |
| C. | ls - x chap0[124] |
| D. | ls chap0[124] |
| Answer» C. ls - x chap0[124] | |
| 79. |
What command is used to add printing jobs to the queue? |
| A. | lpd |
| B. | lpr |
| C. | lpq |
| D. | lpc |
| Answer» B. lpr | |
| 80. |
What command is used to list contents of directories? |
| A. | tar |
| B. | dir |
| C. | lp |
| D. | ls |
| Answer» D. ls | |
| 81. |
Command used to determine the path of an executable file is |
| A. | which |
| B. | where |
| C. | wexec |
| D. | what |
| Answer» A. which | |
| 82. |
Command used to count number of character in a file is |
| A. | grep |
| B. | wc |
| C. | count |
| D. | cut |
| Answer» B. wc | |
| 83. |
Which of these commands could you use to show one page of output at a time? |
| A. | less |
| B. | sed |
| C. | pause |
| D. | grep |
| Answer» A. less | |
| 84. |
Which commands will give you information about how much disk space each file in the current directory uses? |
| A. | ls -l |
| B. | ls -la |
| C. | du |
| D. | ls -a |
| Answer» C. du | |
| 85. |
Which of the following command output contains userid? |
| A. | ls |
| B. | help |
| C. | date |
| D. | ls –l |
| Answer» D. ls –l | |
| 86. |
Which command is used to display all the files including hidden files in your current and its subdirectories ? |
| A. | ls –aR |
| B. | ls –a |
| C. | ls –R |
| D. | ls –l |
| Answer» A. ls –aR | |
| 87. |
Which of the following commands can be used to copy files across systems? |
| A. | ssh |
| B. | telnet |
| C. | rsh |
| D. | ftp |
| Answer» D. ftp | |
| 88. |
pwd command displays |
| A. | user password |
| B. | password file content |
| C. | present working directory |
| D. | none of the mentioned |
| Answer» C. present working directory | |
| 89. |
Which of the following commands can be used to change default permissions for files and directories at the time of creation |
| A. | Chmod |
| B. | Chown |
| C. | Umask |
| D. | Chgrp |
| Answer» C. Umask | |
| 90. |
Which tar command option is used to list the files in a tape archive format? |
| A. | cvf |
| B. | tvf |
| C. | xvf |
| D. | ovf |
| Answer» B. tvf | |
| 91. |
Which of the following commands will allow the user to search contents of a file for a particular pattern |
| A. | touch |
| B. | grep |
| C. | find |
| D. | ls |
| Answer» B. grep | |
| 92. |
Write the command to display the current date in the form dd/mm/yyyy. |
| A. | date +%d/%m/%Y |
| B. | date +”%d/%m/%Y” |
| C. | date +/%d/%m/20%y |
| D. | date +”/%d/%m/20%y” |
| Answer» A. date +%d/%m/%Y | |
| 93. |
Which one shows the name of the operating system? |
| A. | uname -n |
| B. | uname -r |
| C. | uname -o |
| D. | uname –m |
| Answer» C. uname -o | |
| 94. |
How do you add (append) a file “file1” to the example.tar file |
| A. | no you cannot add a file to example.tar |
| B. | tar -cvf example.tar file1 |
| C. | tar -rvf file1 example.tar |
| D. | tar -evf file1 example.tar |
| Answer» C. tar -rvf file1 example.tar | |
| 95. |
How to execute ls command inside a vi editor? |
| A. | !ls |
| B. | :ls |
| C. | :!ls |
| D. | we can’t execute |
| Answer» C. :!ls | |
| 96. |
Which command gives the first byte where the difference is in the file1 & file2? |
| A. | diff |
| B. | cmp |
| C. | comm |
| D. | ls -a |
| Answer» B. cmp | |
| 97. |
To open a file file1 with cursor at line number 4 |
| A. | vi +num file1 |
| B. | vi +set num file1 |
| C. | vi + “set num” file1 |
| D. | vi +/se nu file1 |
| Answer» A. vi +num file1 | |
| 98. |
sed is a command typically used for |
| A. | Perform complex calculations |
| B. | Perform FIFO based non-blocking I/O |
| C. | Modify/print selective contents of a file |
| D. | None of the mentioned |
| Answer» C. Modify/print selective contents of a file | |
| 99. |
What communication command provides communication to another user logged on by writing to the bottom of their terminal? |
| A. | talk |
| B. | write |
| C. | chat |
| D. | transmit |
| Answer» A. talk | |
| 100. |
Which screen manipulation command sets the screen back to normal? |
| A. | tput cup |
| B. | tput smso |
| C. | tput rmso |
| D. | tput blink |
| Answer» C. tput rmso | |
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