MCQOPTIONS
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MCQOPTIONS
This section includes 746 Mcqs, each offering curated multiple-choice questions to sharpen your Technical Programming knowledge and support exam preparation. Choose a topic below to get started.
| 601. |
Which signal is sent by the command “kill -9 ” ? |
| A. | INT |
| B. | TERM |
| C. | KILL |
| D. | STOP |
| Answer» D. STOP | |
| 602. |
Process information in the current shell can be obtained by using |
| A. | kill |
| B. | bg |
| C. | fg |
| D. | ps |
| Answer» E. | |
| 603. |
Which command can be executed by a user who is already logged into the system, in order to change to the root user? (type the command without any parameters) |
| A. | su |
| B. | root |
| C. | chroot |
| D. | user |
| Answer» B. root | |
| 604. |
How to run a process in the background? |
| A. | & |
| B. | * |
| C. | ? |
| D. | | |
| Answer» B. * | |
| 605. |
Which command is used to bring the background process to forground? |
| A. | bg |
| B. | fg |
| C. | background |
| D. | forground |
| Answer» C. background | |
| 606. |
If a program executing in background attempts to read from STDIN |
| A. | It is terminated |
| B. | It’s execution is suspended |
| C. | STDIN is made available to it |
| D. | None of the mentioned |
| Answer» C. STDIN is made available to it | |
| 607. |
Which file is read by init to get the default runlevel |
| A. | /etc/profile |
| B. | /etc/init |
| C. | /etc/boot |
| D. | /etc/inittab |
| Answer» E. | |
| 608. |
The process id of init process is: |
| A. | -1 |
| B. | 0 |
| C. | 1 |
| D. | 2 |
| Answer» D. 2 | |
| 609. |
At the end of kernel bootstrap, which process is started? |
| A. | /etc/init |
| B. | /etc/sched |
| C. | /etc/swap |
| D. | /etc/kernel |
| Answer» B. /etc/sched | |
| 610. |
Which daemon manages the physical memory by moving process from physical memory to swap space when more physical memory is needed. |
| A. | Sched daemon |
| B. | Swap daemon |
| C. | Init daemon |
| D. | Process daemon |
| Answer» C. Init daemon | |
| 611. |
Which is the only partition mounted in Single user mode |
| A. | boot |
| B. | usr |
| C. | root |
| D. | tmp |
| Answer» D. tmp | |
| 612. |
Single user mode shell runs as |
| A. | Admin user |
| B. | Root user |
| C. | Normal user |
| D. | Log user |
| Answer» C. Normal user | |
| 613. |
The shell used for Single user mode shell is: |
| A. | bash |
| B. | Csh |
| C. | ksh |
| D. | sh |
| Answer» E. | |
| 614. |
Bootstrapping is also known as |
| A. | Quick boot |
| B. | Cold boot |
| C. | Hot boot |
| D. | Fast boot |
| Answer» C. Hot boot | |
| 615. |
The process of starting up a computer is known as |
| A. | Boot Loading |
| B. | Boot Record |
| C. | Boot Strapping |
| D. | Booting |
| Answer» D. Booting | |
| 616. |
Which is loaded into memory when system is booted? |
| A. | Kernel |
| B. | Shell |
| C. | Commands |
| D. | Script |
| Answer» B. Shell | |
| 617. |
On Linux, initrd is a file |
| A. | Containing root file-system required during bootup |
| B. | Contains only scripts to be executed during bootup |
| C. | Contains root-file system and drivers required to be preloaded during bootup |
| D. | None of the mentioned |
| Answer» D. None of the mentioned | |
| 618. |
Which of the following is not a valid run-level |
| A. | S |
| B. | 0 |
| C. | 8 |
| D. | 1 |
| Answer» D. 1 | |
| 619. |
Which command is used to mount file system read only. |
| A. | mount –a |
| B. | mount –v |
| C. | mount –f |
| D. | mount –r |
| Answer» E. | |
| 620. |
____ is a directory (which should exist), on which to mount the file system? |
| A. | Root |
| B. | Boot |
| C. | Mount-point |
| D. | Partition |
| Answer» D. Partition | |
| 621. |
Which file contains the filesystems to be automatically mounted during boot? |
| A. | /etc/mount |
| B. | /etc/fstab |
| C. | /etc/inittab |
| D. | /etc/boot |
| Answer» C. /etc/inittab | |
| 622. |
Which file system has journaling capability? |
| A. | Ext2 |
| B. | Ext4 |
| C. | Isofs |
| D. | Procfs |
| Answer» C. Isofs | |
| 623. |
Filesystem for CDROM is: |
| A. | Ext2 |
| B. | Ext3 |
| C. | Isofs |
| D. | Procfs |
| Answer» D. Procfs | |
| 624. |
Which filesystem can be used to change certain kernel parameters at runtime using sysctl command? |
| A. | Ext3 |
| B. | Sysfs |
| C. | Ext4 |
| D. | Procfs |
| Answer» E. | |
| 625. |
Which among the following allows fast file system recovery? |
| A. | Ext2 |
| B. | Journaling |
| C. | Caching |
| D. | Sysfs |
| Answer» C. Caching | |
| 626. |
Which command is used to check filesystem usage in a system? |
| A. | mount |
| B. | df |
| C. | du |
| D. | dd |
| Answer» E. | |
| 627. |
Which of the following umask settings allow execute permission to be set by default on regular files |
| A. | 222 |
| B. | 111 |
| C. | 000 |
| D. | None of the mentioned |
| Answer» E. | |
| 628. |
Which of the following umask settings doesn’t allow execute permission to be set by default on directory files |
| A. | 222 |
| B. | 111 |
| C. | 000 |
| D. | 444 |
| Answer» D. 444 | |
| 629. |
What does chmod +t do? |
| A. | wrong syntax |
| B. | set effective userid for filename |
| C. | set effective groupid for filename |
| D. | set the sticky bit |
| Answer» E. | |
| 630. |
A user executes the following command successfully: $ chmod +x file1.txt Which of the following is true of the output of this command? |
| A. | The command results in adding execute permission to the user who ran this command |
| B. | The command results in adding execute permission for the owner of the file |
| C. | The command results in an error since the file is not an executable file |
| D. | The command results in adding execute permission for all users (i.e., user,group & others) |
| Answer» E. | |
| 631. |
If you are a root user, how can you grand execute permission only for the owner of the file project1? |
| A. | chmod +x project1 |
| B. | chmod u+x project1 |
| C. | chmod a+x project1 |
| D. | chmod U+X project1 |
| Answer» C. chmod a+x project1 | |
| 632. |
Which of these commands will set the permissions on file textfile to read and write for the owner, read for the group, and nothing for everyone else? |
| A. | chmod 046 textfile |
| B. | chmod 640 textfile |
| C. | chmod 310 textfile |
| D. | chmod rw r nil textfile |
| Answer» C. chmod 310 textfile | |
| 633. |
Given the command $ chmod o-w datafile |
| A. | sets write permission to everyone for datafile |
| B. | sets write permission to others for datafile |
| C. | clears write permission to everyone for datafile |
| D. | clears write permission to others for datafile |
| Answer» E. | |
| 634. |
Which command is used to assign read-write permission to the owner? |
| A. | chmod a+r file |
| B. | chmod o+r file |
| C. | chmod u=rw file |
| D. | chmod og-r file |
| Answer» D. chmod og-r file | |
| 635. |
With a umask value of 112, what is the default permission assigned to newly created regular file? |
| A. | —x–x-wx |
| B. | -rw-rw-r– |
| C. | -r-xr-x-r– |
| D. | -rw-rw-r– |
| Answer» E. | |
| 636. |
The permission -rwxr-xr-t represented in octal expression will be |
| A. | 0777 |
| B. | 1755 |
| C. | 1754 |
| D. | 2754 |
| Answer» C. 1754 | |
| 637. |
What is the command to set the execute permissions to all the files and subdirectories within the directory /home/user1/direct |
| A. | chmod –r +x /home/user1/direct |
| B. | chmod –R +x /home/user1/direct |
| C. | chmod –f –r +x /home/user1/direct |
| D. | chmod –F +x /home/user1/direct |
| Answer» C. chmod –f –r +x /home/user1/direct | |
| 638. |
If the umask value is 0002. what will be the permissions of new directory |
| A. | 777 |
| B. | 775 |
| C. | 774 |
| D. | 664 |
| Answer» C. 774 | |
| 639. |
A user does a chmod operation on a file. Which of the following is true? |
| A. | The last accessed time of the file is updated |
| B. | The last modification time of the file is updated |
| C. | The last change time of the file is updated |
| D. | None of the mentioned |
| Answer» D. None of the mentioned | |
| 640. |
If user tries to remove (rm) a readonly file (444 permission), what will happen? |
| A. | The file is removed successfully (and silently) |
| B. | The rm command prompts for a confirmation, the command is successful upon confirmation |
| C. | The rm command prompts for a confirmation, however the operation fails because of insufficient permissions |
| D. | The rm command fails because of insufficient permissions |
| Answer» C. The rm command prompts for a confirmation, however the operation fails because of insufficient permissions | |
| 641. |
The permission -rwxr-sr– represented in octal expression will be |
| A. | 0777 |
| B. | 2766 |
| C. | 2744 |
| D. | 2754 |
| Answer» E. | |
| 642. |
The permission -rwSr–r– represented in octal expression will be |
| A. | 0777 |
| B. | 2666 |
| C. | 4744 |
| D. | 4644 |
| Answer» E. | |
| 643. |
Sticky bit can be set using following permission |
| A. | 0777 |
| B. | 2666 |
| C. | 4744 |
| D. | 1711 |
| Answer» E. | |
| 644. |
Effective group id can be set using following permission |
| A. | 0777 |
| B. | 2666 |
| C. | 4744 |
| D. | 1711 |
| Answer» C. 4744 | |
| 645. |
Effective user id can be set using following permission |
| A. | 0777 |
| B. | 2666 |
| C. | 4744 |
| D. | 1711 |
| Answer» D. 1711 | |
| 646. |
The permission -rwxr–r– represented in octal expression will be |
| A. | 777 |
| B. | 666 |
| C. | 744 |
| D. | 711 |
| Answer» D. 711 | |
| 647. |
The file permission 764 means: |
| 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. | Every one can read and write and execute |
| Answer» D. Every one can read and write and execute | |
| 648. |
All device files are stored in which directory? |
| A. | /etc |
| B. | /bin |
| C. | /dev |
| D. | /usr |
| Answer» D. /usr | |
| 649. |
Which is an example for block special file? |
| A. | Virtual Terminal |
| B. | CD-ROM |
| C. | Terminal |
| D. | Serial modem |
| Answer» C. Terminal | |
| 650. |
Which is an example for character special file? |
| A. | Hard disk |
| B. | CD-ROM |
| C. | Terminal |
| D. | Memory |
| Answer» D. Memory | |