laboursonline – MCQs, Mock Tests | Computer OS(Computer Operating Systems) Part 1

Running multiple programs at the same time is called:

1. Multitasking
2. Foreground tasking
3. Single tasking
4. Symmetric

✅ Correct Answer: 1

What is the meaning of “Hibernate” in Windows XP/Windows 7?

1. Restart the Computer in safe mode
2. Restart the Computer in hibernate mode
3. Shutdown the Computer terminating all the running applications
4. Shutdown the Computer without closing the running applications

✅ Correct Answer: 4

The function of Dir/W is

1. Show all details of file
2. Show only file name and directory name
3. Shows only directory
4. All of the above

✅ Correct Answer: 2

Page stealing

1. Is a sign of an efficient system
2. Is taking page frame from other working sets
3. Should be the turning goal
4. Is taking layer disk space for page in page out

✅ Correct Answer: 2

What do you mean by dialog box?

1. Interactive message box
2. Group of options
3. Set of controls
4. All of the above

✅ Correct Answer: 4

Dial up connection allows you to

1. Connect ISP
2. Internet
3. Server
4. All of above

✅ Correct Answer: 1

To properly exit Windows

1. Click the stop button on the desktop
2. Click the exit button on the desktop
3. Select shut down from Start menu
4. None of above

✅ Correct Answer: 3

Which is not a system tool?

1. Folder
2. Backup
3. Scandisk
4. Format

✅ Correct Answer: 1

A utility that can be used to minimize the number of fragmented files and enhance the speed

1. Disk space
2. Defrag
3. Scandisk
4. Double space

✅ Correct Answer: 2

To change the volume label

1. Vol
2. Label
3. Scandisk
4. None

✅ Correct Answer: 2

Which of the following is a disk compression tools?

1. Drive space
2. Defragmenter
3. Scandisk
4. None of the above

✅ Correct Answer: 1

To save your computer from viruses you will do

1. Install antivirus software and run it
2. Make physical safe for the removal disk
3. Scan the removable disk before using it
4. All of the above

✅ Correct Answer: 1

How can you optimize performance of your computer?

1. Delete unused files
2. Defrag disk
3. Scan for virus
4. All of above

✅ Correct Answer: 4

Scandisk

1. Checks the disk
2. Give information about disk
3. Run from DOS mode
4. All of the above

✅ Correct Answer: 4

Recently used application file list appears in the Windows operating system

1. Setting menu
2. Documents menu
3. Run dialog box
4. Programs menu

✅ Correct Answer: 2

Batch file is used to

1. Run program
2. Show the contents
3. run commands automatically
4. All of above

✅ Correct Answer: 3

…. are specially designed computer chips that reside inside other devices; such as your car or electric thermostat

1. Server
2. Embedded computer
3. Robotic computer
4. Mainframes

✅ Correct Answer: 2

The title bar always displays on

1. Top of the open windows
2. Left side of the open window
3. Right side of the open window
4. All of above

✅ Correct Answer: 1

Which of the following is used to display the content of a certain drive or folder?

1. Click the drive or folder while holding down the Alt key
2. Triple click the drive or folder
3. Right-click the drive or folder
4. Double click the drive or folder

✅ Correct Answer: 4

Which of the following file menu option saves document to disk?

1. Save
2. Create
3. Rename
4. All of above

✅ Correct Answer: 1

While working with MS-DOS which command is used to change the extension of all file names ending with .txt to doc?

1. Ren *.doc *.txt
2. Ren .txt .doc
3. Ren file.doc file.text
4. Ren a:*.doc *.doc

✅ Correct Answer: 1

Booting means

1. Restarting computer
2. Installing program
3. Removing errors
4. Switch off computer

✅ Correct Answer: 1

RD command are used to

1. Remove an empty directory
2. Remove non-empty directory
3. Remove directory including files
4. None of the above

✅ Correct Answer: 1

When you open my computer on desktop you see the information of

1. Hard disk
2. CD
3. Removable disk
4. All of the above

✅ Correct Answer: 4

….is an intermediate storage for deleted files

1. My computer
2. My documents
3. Recycle bin
4. None of above

✅ Correct Answer: 3

We can start the application from?

1. Log off
2. Network place
3. Recycle bin
4. Run

✅ Correct Answer: 4

Which command is used to list out deleted files in DOS?

1. list
2. Undelete/list
3. Recover
4. All of the above

✅ Correct Answer: 2

Which of the following is not process states?

1. New
2. Running
3. Ready
4. Finished

✅ Correct Answer: 4

Which command is used to delete the directory and all of its contents in one step?

1. Deltree
2. CD
3. Rd
4. Dir *.*

✅ Correct Answer: 1

What you type at the DOS command prompt to return back to windows?

1. Command
2. Exit
3. Quit
4. Return

✅ Correct Answer: 2

What do you type at the DOS command prompt to return back to Windows

1. Command
2. Exit
3. Quit
4. Return

✅ Correct Answer: 2

The question mark (?) indicates in file searching

1. A single character
2. A group of character
3. Questions
4. None of above

✅ Correct Answer: 1

Save operation means

1. Put data into processor
2. Put data into internal memory
3. Put data into secondary storage
4. Put data into monitor

✅ Correct Answer: 3

CAD software is most likely to be used by

1. Web designer
2. Engineers
3. Project Manager
4. Magazine Editor

✅ Correct Answer: 2

A spooler is a

1. Location in memory that maintains the contents of documents until it prints out
2. Queue of print job that are waiting to print
3. Program that coordinates the print job that are waiting to process
4. Message sent from the printer to the operating system when a print job is completed

✅ Correct Answer: 3

The problem with …file is that they slow your computer’s operation

1. Fragmented
2. Formatted
3. Program
4. All of above

✅ Correct Answer: 1

User action such as keystroke or mouse click are referred to as

1. Interrupt
2. Tasks
3. Processes
4. Event

✅ Correct Answer: 4

Which is not external command?

1. Doskey
2. Verify
3. Print
4. Find

✅ Correct Answer: 2

What is the method of handling deadlocks?

1. Use a protocol to ensure that the system will never enter a deadlock state.
2. Allow the system to enter the deadlock state and then recover.
3. Pretend that deadlocks never occur in the system.
4. All of the Above

✅ Correct Answer: 4

To delete a file without allowing it to store in recycle bin

1. Press Delete key
2. Press Shift + Delete key
3. Press Ctrl + Delete key
4. Press Alt + Delete key

✅ Correct Answer: 2

Operating system is a ….

1. System software
2. Application software
3. Presentation software
4. Database software

✅ Correct Answer: 1

To display a shortcut menu for an object you use

1. Click the object
2. Right click the object
3. Point the object and press Ctrl+P
4. Touch the object on the screen with your finger

✅ Correct Answer: 2

Which of the following separates primary file and extension is.

1. Dot
2. Period
3. Point
4. All of the above

✅ Correct Answer: 4

In Microsoft windows; the graphical pattern on the desktop used as background for windows is

1. Icons
2. Wallpaper
3. Picture
4. Background

✅ Correct Answer: 2

All of the following are task performed by the operating system except

1. Managing hardware on the computer
2. Controlling the access that application program has to the CPU
3. Performing housekeeping task like file compression and disk defragmentation
4. Provides an interface for user to interact with computer

✅ Correct Answer: 3

Which of the following is not an operating system?

1. CP/M
2. Unix
3. Pascal
4. MS-DOS

✅ Correct Answer: 3

Operating system is like a

1. Government
2. Police
3. Parliament
4. All of above

✅ Correct Answer: 1

Underlined character on the menu or dialog box known as

1. Hot spot
2. Hot key
3. Pane
4. Underline word

✅ Correct Answer: 2

Which key deletes text before; or to the left; of the insertion point?

1. PageUp
2. Delete
3. PageDown
4. BackSpace

✅ Correct Answer: 4

The chunks of a memory are known as

1. Sector
2. Offset
3. Page
4. Frame

✅ Correct Answer: 4