McqMate
These multiple-choice questions (MCQs) are designed to enhance your knowledge and understanding in the following areas: Computer Science Engineering (CSE) .
| 451. |
The command that can be used to restrict incoming messages to a user is |
| A. | halt |
| B. | mesg |
| C. | grep |
| D. | sleep |
| Answer» B. mesg | |
| 452. |
The sort command in UNIX |
| A. | used to sort a file |
| B. | used to sort the list of files in a directory |
| C. | both a and b |
| D. | none of the abov |
| Answer» A. used to sort a file | |
| 453. |
Which of the following keys is used to replace a single character with new text? |
| A. | s |
| B. | s |
| D. | c |
| Answer» B. s | |
| 454. |
The tail command in UNIX |
| A. | can be used to look at the tail or bottom of the file |
| B. | can be used to display the list of last 10 files in the current directory |
| C. | can be used to display the list of last 15 in the current directory |
| D. | none of the above |
| Answer» A. can be used to look at the tail or bottom of the file | |
| 455. |
Which command is used to change protection mode of files starting with the string emp and ending with 1,2, or 3? |
| A. | can be used to look at the tail or bottom of the file |
| B. | chmod u x emp[l-3] |
| C. | chmod u r ??? emp |
| D. | chmod 222 emp? |
| Answer» B. chmod u x emp[l-3] | |
| 456. |
Which command will be used with vi editor to append text at end of line? |
| A. | is–x |
| B. | is |
| C. | is–1 |
| D. | is–f–x |
| Answer» B. is | |
| 457. |
Which command is used to display the device name of the terminal you are using? |
| A. | who |
| B. | stty |
| C. | tty |
| D. | ls |
| Answer» C. tty | |
| 458. |
Which command allows you to view your file 24 lines at a time ? |
| A. | more |
| B. | cat |
| C. | none of the above |
| D. | pg |
| Answer» A. more | |
| 459. |
The tar command in UNIX |
| A. | used to create compressed archives of directories and file |
| B. | used to extract directories and files from an archives |
| C. | both a and b |
| D. | none of the abov |
| Answer» C. both a and b | |
| 460. |
Which of the following commands is used to rename a file? |
| A. | rename |
| B. | remove |
| C. | mv |
| D. | ren |
| Answer» C. mv | |
| 461. |
Which of the following calls never returns an error? |
| A. | getpid |
| B. | ioct1 |
| C. | fork |
| D. | open |
| Answer» A. getpid | |
| 462. |
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. | count w |
| Answer» B. wc | |
| 463. |
The cc command makes a total of |
| A. | 1 pass |
| B. | 2 pass |
| C. | 3 pass |
| D. | 4 pass |
| Answer» D. 4 pass | |
| 464. |
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 | |
| 465. |
Mounting a file system results in the loading of |
| A. | boot block |
| B. | super block |
| C. | i-node table |
| D. | all of thes |
| Answer» B. super block | |
| 466. |
When a process makes a system call ,its mode changes from |
| A. | user to kernel |
| B. | kernel to user |
| C. | restricted to unrestricted |
| D. | unrestricted to restricted |
| Answer» A. user to kernel | |
| 467. |
Which of the following files contains information related to password aging? |
| A. | hadow |
| B. | profile |
| C. | password |
| D. | all of these |
| Answer» C. password | |
| 468. |
Which of the following are character special files? |
| A. | terminal |
| B. | printer |
| C. | modem |
| D. | tape drive |
| Answer» B. printer | |
| 469. |
To allow only one user to work with a particular file at a particular time ,one has to |
| A. | semaphore |
| B. | critical region |
| C. | locking |
| D. | dedicated mode |
| Answer» C. locking | |
| 470. |
A popular boot loader used by most Linux distributions to boot Linux is called |
| A. | fifo |
| B. | lilo |
| C. | lifo |
| D. | none |
| Answer» B. lilo | |
| 471. |
LILO can also be used to boot other operating systems as well such as …….. |
| A. | ms-dos |
| B. | windows 98 |
| C. | windows nt |
| D. | all of these |
| Answer» D. all of these | |
| 472. |
LILO can be installed to either ……..of Linux root partition. |
| A. | mbr |
| B. | to the boot record |
| C. | both a and b |
| D. | none |
| Answer» C. both a and b | |
| 473. |
What is LILO ? |
| A. | list in list out |
| B. | last in last out |
| C. | linux loader |
| D. | none |
| Answer» C. linux loader | |
| 474. |
LILO’s configuration file is |
| A. | /etc/lilo.conf |
| B. | lilo.config |
| C. | etc/lilo.config |
| D. | none |
| Answer» A. /etc/lilo.conf | |
| 475. |
Other boot loaders which can be used to load Linux exist: |
| A. | grub |
| B. | loadlin |
| C. | both a and b |
| D. | none |
| Answer» C. both a and b | |
| 476. |
The kernel itself is a program that usually lives in the root partition of the UNIX filesystem. Most Linux distributions call it and it often a symbolic link to the real kernel file which lives in “/boot”. |
| A. | /vmlinuz |
| B. | /kernel |
| C. | /root |
| D. | none |
| Answer» A. /vmlinuz | |
| 477. |
After the kernel is brought in from disk into main memory, it begins execution and one of the first things it does is ………… |
| A. | initialize the system\s kernel |
| B. | initialize the system’s hardware. |
| C. | initialize the system\s ram |
| D. | none |
| Answer» B. initialize the system’s hardware. | |
| 478. |
All those cryptic messages you see fly by when the Linux kernel first starts up are messages from the initializing and configuring your hardware. |
| A. | compiled-in-ram |
| B. | compiled-in-root |
| C. | compiled-in kernel drivers |
| D. | none |
| Answer» C. compiled-in kernel drivers | |
| 479. |
The first program the kernel attempts to execute after basic system initialization is complete is called |
| A. | fork |
| B. | init |
| C. | kill |
| D. | none |
| Answer» B. init | |
| 480. |
init’s job after basic system initialization is |
| A. | is to take over the system start-up procedure |
| B. | complete the system bootstrap process |
| C. | both a and b |
| D. | none |
| Answer» C. both a and b | |
| 481. |
The actual program which the Linux kernel executes as the init process can be specified via the command line parameter. |
| A. | "kernel" |
| B. | "init" |
| C. | "root" |
| D. | none |
| Answer» B. "init" | |
| 482. |
The system start-up scripts are executed by when the system starts up and it is these scripts which are responsible for completing the bootstrap process of the UNIX system. |
| A. | init |
| B. | kernel |
| C. | root |
| D. | none |
| Answer» A. init | |
| 483. |
Styles of system start-up scripts… |
| A. | the system v style |
| B. | the bsd style |
| C. | both a and b |
| D. | none |
| Answer» C. both a and b | |
| 484. |
All start-up scripts are typically kept in a directory named which usually lives somewhere under “/etc” |
| A. | init.d |
| B. | init.c |
| C. | intit.e |
| D. | none |
| Answer» A. init.d | |
| 485. |
Each start-up script can usually accept at least two command line arguments: |
| A. | start and stop |
| B. | start and pause |
| C. | start and resume |
| D. | none |
| Answer» A. start and stop | |
| 486. |
Steps in boot process |
| A. | loading and initialzation of kernel |
| B. | device detection and configuration |
| C. | creation of processess and execution of system starup scripts |
| D. | all of these |
| Answer» D. all of these | |
| 487. |
Hardware configuration while booting includes |
| A. | check what hardware present |
| B. | locate and initialize each device as specified |
| C. | probe the bus for devices and ask the appropriate drivers for information |
| D. | all of these |
| Answer» D. all of these | |
| 488. |
Environment variables can be accessed by |
| A. | system programs |
| B. | c programs |
| C. | shell scripts |
| D. | none of the above |
| Answer» C. shell scripts | |
| 489. |
Which of the following shell scripts looping features does not recognize the break command? |
| A. | while |
| B. | until |
| C. | for |
| D. | none of the above |
| Answer» D. none of the above | |
| 490. |
Which of the following is not a filter? |
| A. | cat |
| B. | wc |
| C. | grep |
| D. | sort |
| Answer» A. cat | |
| 491. |
Shell functions |
| A. | are another name for shell procedures |
| B. | execute faster than shell procedures |
| C. | are executed by a new shell |
| D. | are not executed by new shell |
| Answer» D. are not executed by new shell | |
| 492. |
The shell does the following in Unix |
| A. | is the user interface |
| B. | provides security to files |
| C. | talks to the hardware |
| D. | is the file manager |
| Answer» A. is the user interface | |
| 493. |
"bash" is an example of a |
| A. | kernel |
| B. | shell |
| C. | security system |
| D. | file manager |
| Answer» B. shell | |
| 494. |
Which of the following is not a component of a user account? |
| A. | home directory |
| B. | password |
| C. | group id |
| D. | kernel |
| Answer» D. kernel | |
| 495. |
The Superuser can |
| A. | create accounts |
| B. | delete accounts |
| C. | read and write files in user accounts |
| D. | all the above |
| Answer» D. all the above | |
| 496. |
Who needs to possess the superuser account? |
| A. | ordinary users |
| B. | system administrator |
| C. | department manager |
| D. | president of the company |
| Answer» B. system administrator | |
| 497. |
To use a Unix system with a GUI you need this type of window to enter Unix commands |
| A. | terminal |
| B. | dialog box |
| C. | dos |
| D. | command |
| Answer» A. terminal | |
| 498. |
Multiple Unix commands can be put into a file to form a program. This is called a |
| A. | pipe |
| B. | script |
| C. | link |
| D. | shell |
| Answer» B. script | |
| 499. |
To get to the on-line reference manual, you use this command |
| A. | manual |
| B. | online |
| C. | man |
| D. | none of the above |
| Answer» C. man | |
| 500. |
The letters "bash" stand for |
| A. | born after shell |
| B. | bourne again shell |
| C. | berkeley admin shell |
| D. | none of the above |
| Answer» B. bourne again shell | |
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