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450+ Basics of Operating System Solved MCQs

These multiple-choice questions (MCQs) are designed to enhance your knowledge and understanding in the following areas: Common Topics in Competitive and Entrance exams .

251.

Which command allows you to create a root directory?

A. MD
B. Deltree
C. Format
D. All of above
Answer» C. Format
252.

Fonts install from

A. Add from control panel
B. Font setup file
C. Font.exe file
D. All of above
Answer» D. All of above
253.

You can install fonts from

A. Add from control program
B. Font setup files
C. Font .ext files
D. All of above
Answer» D. All of above
254.

Which is not concerned with control panel?

A. Printer
B. Run application
C. Font
D. Keyboard
Answer» B. Run application
255.

Unicode standard is

A. Keyboard layout
B. Software
C. Font
D. Character encoding system
Answer» D. Character encoding system
256.

MKDIR is similar to

A. MD
B. File
C. Folder
D. Table
Answer» A. MD
257.

A ...is a windows component that is designed to store other components so these can be organized efficiently?

A. Document
B. Window
C. Folder
D. All of above
Answer» C. Folder
258.

You can switch from one program to another on the desktop by clicking within the desired program's window or by clicking on its ....button

A. Icon
B. Taskbar button
C. Folder
D. None of above
Answer» B. Taskbar button
259.

You can switch from one program to another by clicking within the desired program's icon from the

A. Application icon on desktop
B. Application icon from taskbar
C. Folder
D. None of above
Answer» B. Application icon from taskbar
260.

Virtual memory typically located on

A. RAM
B. CPU
C. Flash card
D. Hard drive
Answer» D. Hard drive
261.

What is contained in the page table?

A. Base address of each frame and corresponding page number
B. Memory address and corresponding page number
C. File name and corresponding page number
D. None of Above
Answer» A. Base address of each frame and corresponding page number
262.

Tree structure displays the

A. File only
B. Directory only
C. File and directory name
D. None of above
Answer» C. File and directory name
263.

Windows 2000 server uses the

A. FAT 16
B. NTFS
C. FAT 64
D. FAT 32
Answer» B. NTFS
264.

Which command will divide the surface of the blank floppy disk into sector and assign a unique address to each one?

A. Ver
B. Format
C. FAT
D. CHKDSK
Answer» B. Format
265.

First-in-First-Out (FIFO) scheduling is

A. Non Preemptive Scheduling
B. Preemptive Scheduling
C. Fair Share Scheduling
D. Deadline Scheduling
Answer» A. Non Preemptive Scheduling
266.

Which one of the following key is used to refresh the active window?

A. F7
B. F8
C. F9
D. F5
Answer» D. F5
267.

To display system boot menu which of the following command you must press?

A. F4
B. F7
C. F8
D. F5
Answer» C. F8
268.

Press ____ key while booting to display Advanced Boot Menu

A. F5
B. F6
C. F8
D. Del
Answer» C. F8
269.

Which of the following command is used to move the pointer from one pane to next pane?

A. F3
B. F4
C. F5
D. F6
Answer» D. F6
270.

In a folder, which of the following command is used to rename the file or folder

A. F3
B. F4
C. F2
D. F7
Answer» C. F2
271.

A character that represents one or more unknown character is

A. Wildcard character
B. All file name
C. Extensions
D. None of above
Answer» A. Wildcard character
272.

Which of the following file format supports in Windows 7?

A. NTFS
B. BSD
C. EXT
D. All of the above
Answer» A. NTFS
273.

Anything you cut or copy on to the clipboard remains there until you

A. Change it
B. Clear
C. Exit windows
D. All of the above
Answer» D. All of the above
274.

Multiprogramming systems ...

A. Are easier to develop than single programming system
B. Execute each job faster
C. Execute more jobs in the same time period
D. Are used only by large mainframe computer
Answer» C. Execute more jobs in the same time period
275.

Multiprogramming systems:

A. Are easier to develop than single programming systems
B. Execute each job faster
C. Execute more jobs in the same time period
D. Are used only one large mainframe computers.
Answer» C. Execute more jobs in the same time period
276.

When you press and release the secondary mouse button you are ....

A. Right clicking
B. Left clicking
C. Either a or b
D. None of above
Answer» A. Right clicking
277.

Netscape navigator is a

A. Browser
B. Compose
C. Editor
D. None of these
Answer» A. Browser
278.

To print documents from Windows

A. File >> Print
B. Drag the document icon over your printers icon
C. Edit print
D. Both a and B
Answer» D. Both a and B
279.

Which of the following appear in Windows menu bar?

A. Help
B. File
C. Edit
D. All of above
Answer» D. All of above
280.

The operating system allows the user to organize the computer's contents in a hierarchical structure of directories that include all of the following except:

A. Files
B. Folders
C. Drives
D. System
Answer» D. System
281.

When you quickly press and release the left mouse button twice you are

A. Primary clicking
B. Pointing
C. Double clicking
D. Secondary clicking
Answer» C. Double clicking
282.

Essential files of DOS are

A. Command.com and IO.Sys
B. IO.Sys and DOS.Sys
C. DOS.Sys and Comma
D. com
Answer» B. IO.Sys and DOS.Sys
283.

Which operating system does not support long file names?

A. OS/2
B. Windows 98
C. DOS 6.2
D. Windows NT
Answer» C. DOS 6.2
284.

Which operating system uses short file names?

A. Windows
B. Unix
C. DOS
D. All of above
Answer» C. DOS
285.

Pick out odd

A. Windows
B. Window
C. DOS
D. Linux
Answer» B. Window
286.

Bringing a page into memory only when it is needed, this mechanism is called

A. Deadlock
B. Page Fault
C. Dormant Paging
D. Demand Paging
Answer» D. Demand Paging
287.

It is the default folder for many Windows Applications to save your file

A. My Document
B. My Pictures
C. Documents and Settings
D. My Computer
Answer» A. My Document
288.

The component of Widows that lets you to transfer contents from one document to another

A. Briefcase
B. Clipboard
C. Document
D. Boot
Answer» B. Clipboard
289.

What do you mean by Memory Compaction?

A. Combine multiple equal memory holes into one big hole
B. Combine multiple small memory holes into one big hole
C. Divide big memory hole into small holes
D. Divide memory hole by 2
Answer» B. Combine multiple small memory holes into one big hole
290.

Desktop is a

A. Provides workspace
B. Screen saver
C. Display program
D. Working with my document
Answer» A. Provides workspace
291.

The operating system manages

A. Memory
B. Processes
C. Disks and I/O devices
D. All of above
Answer» D. All of above
292.

The operating system manages

A. Memory
B. Processes
C. Disks and I/O devices
D. all of the above
Answer» D. all of the above
293.

You need to duplicate the entire disk which command will you use?

A. Copy
B. Move
C. Diskcopy
D. All of above
Answer» C. Diskcopy
294.

Which of the following is not a system tool?

A. Scandisk
B. Drive space
C. Disk defragmenter
D. Doskey
Answer» D. Doskey
295.

DOS stand for

A. Dummy operating system
B. DOS operating system
C. Dirty operating system
D. Disk operating system
Answer» D. Disk operating system
296.

Which of the following statement about directories is false?

A. Directories can exist inside directories
B. The root directory is always at the highest level
C. Directories cannot be renamed
D. Directories can be deleted
Answer» C. Directories cannot be renamed
297.

Which command allows you to show the contents of disk widely in screen?

A. Dir/p
B. Dir/b
C. Dir/w
D. Dir/o:w
Answer» C. Dir/w
298.

Which command will be used to display only the file name and extensions in wide format?

A. Dir/b
B. Dir A:
C. Dir/s
D. Dir/w
Answer» D. Dir/w
299.

Which command displays only directory?

A. Dir/aa
B. Dir/od
C. Dir/directory
D. Dir/ad
Answer» D. Dir/ad
300.

Which command permits to see the directory structure in DOS?

A. Display structure
B. Tree
C. Dir/all
D. All of above
Answer» B. Tree

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