laboursonline – MCQs, Mock Tests | Computer OS(Computer Operating Systems) Part 3

What is contained in the page table?

1. Base address of each frame and corresponding page number
2. Memory address and corresponding page number
3. File name and corresponding page number
4. None of Above

✅ Correct Answer: 1

Tree structure displays the

1. File only
2. Directory only
3. File and directory name
4. None of above

✅ Correct Answer: 3

Windows 2000 server uses the

1. FAT 16
2. NTFS
3. FAT 64
4. FAT 32

✅ Correct Answer: 2

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

1. Ver
2. Format
3. FAT
4. CHKDSK

✅ Correct Answer: 2

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

1. Non Preemptive Scheduling
2. Preemptive Scheduling
3. Fair Share Scheduling
4. Deadline Scheduling

✅ Correct Answer: 1

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

1. F7
2. F8
3. F9
4. F5

✅ Correct Answer: 4

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

1. F4
2. F7
3. F8
4. F5

✅ Correct Answer: 3

Press ____ key while booting to display Advanced Boot Menu

1. F5
2. F6
3. F8
4. Del

✅ Correct Answer: 3

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

1. F3
2. F4
3. F5
4. F6

✅ Correct Answer: 4

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

1. F3
2. F4
3. F2
4. F7

✅ Correct Answer: 3

A character that represents one or more unknown character is

1. Wildcard character
2. All file name
3. Extensions
4. None of above

✅ Correct Answer: 1

Which of the following file format supports in Windows 7?

1. NTFS
2. BSD
3. EXT
4. All of above

✅ Correct Answer: 1

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

1. Change it
2. Clear
3. Exit windows
4. All of the above

✅ Correct Answer: 4

Multiprogramming systems …

1. Are easier to develop than single programming system
2. Execute each job faster
3. Execute more jobs in the same time period
4. Are used only by large mainframe computer

✅ Correct Answer: 3

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

1. Right clicking
2. Left clicking
3. Either a or b
4. None of above

✅ Correct Answer: 1

Netscape navigator is a

1. Browser
2. Compose
3. Editor
4. None of these

✅ Correct Answer: 1

To print documents from Windows

1. File >> Print
2. Drag the document icon over your printers icon
3. Edit print
4. Both a and B

✅ Correct Answer: 4

Which of the following appear in Windows menu bar?

1. Help
2. File
3. Edit
4. All of above

✅ Correct Answer: 4

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:

1. Files
2. Folders
3. Drives
4. System

✅ Correct Answer: 4

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

1. Primary clicking
2. Pointing
3. Double clicking
4. Secondary clicking

✅ Correct Answer: 3

Essential files of DOS are

1. Command.com and IO.Sys
2. IO.Sys and DOS.Sys
3. DOS.Sys and Command.com
4. Autoexec.bat and Config.sys

✅ Correct Answer: 2

Which operating system does not support long file names?

1. OS/2
2. Windows 98
3. DOS 6.2
4. Windows NT

✅ Correct Answer: 3

Which operating system uses short file names?

1. Windows
2. Unix
3. DOS
4. All of above

✅ Correct Answer: 3

Pick out odd

1. Windows
2. Window
3. Dos
4. Linux

✅ Correct Answer: 2

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

1. Deadlock
2. Page Fault
3. Dormant Paging
4. Demand Paging

✅ Correct Answer: 4

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

1. My Document
2. My Pictures
3. Documents and Settings
4. My Computer

✅ Correct Answer: 1

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

1. Briefcase
2. Clipboard
3. Document
4. Boot

✅ Correct Answer: 2

What do you mean by Memory Compaction?

1. Combine multiple equal memory holes into one big hole
2. Combine multiple small memory holes into one big hole
3. Divide big memory hole into small holes
4. Divide memory hole by 2

✅ Correct Answer: 2

Desktop is a

1. Provides workspace
2. Screen saver
3. Display program
4. Working with my document

✅ Correct Answer: 1

The operating system manages

1. Memory
2. Processes
3. Disks and I/O devices
4. All of above

✅ Correct Answer: 4

The operating system manages

1. Memory
2. Processes
3. Disks and I/O devices
4. all of the above

✅ Correct Answer: 4

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

1. Copy
2. Move
3. Diskcopy
4. All of above

✅ Correct Answer: 3

Which of the following is not a system tool?

1. Scandisk
2. Drive space
3. Disk defragmenter
4. Doskey

✅ Correct Answer: 4

DOS stand for

1. Dummy operating system
2. DOS operating system
3. Dirty operating system
4. Disk operating system

✅ Correct Answer: 4

Which of the following statement about directories is false?

1. Directories can exist inside directories
2. The root directory is always at the highest level
3. Directories cannot be renamed
4. Directories can be deleted

✅ Correct Answer: 3

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

1. Dir/p
2. Dir/b
3. Dir/w
4. Dir/o:w

✅ Correct Answer: 3

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

1. Dir/b
2. Dir A:
3. Dir/s
4. Dir/w

✅ Correct Answer: 4

Which command displays only directory?

1. Dir/aa
2. Dir/od
3. Dir/directory
4. Dir/ad

✅ Correct Answer: 4

Which command permits to see the directory structure in DOS?

1. Display structure
2. Tree
3. Dir/all
4. All of above

✅ Correct Answer: 2

To display hidden files.

1. Dir/hidden
2. Attrib/ah
3. Dir/ah
4. None of above

✅ Correct Answer: 3

The command used to display all files (.exe) from the system

1. Dir *.exe
2. Dir *.exe/s
3. Dir *.exe/all
4. None of above

✅ Correct Answer: 2

The command refreshes the screen and places the cursor at the top left corner of screen

1. CLS
2. Clear
3. Dir
4. CHKDSK

✅ Correct Answer: 1

Which command will you use to display the system date?

1. Date
2. Ver
3. Dir
4. Format

✅ Correct Answer: 1

Which command is used to provide access to program located in other directory or disk?

1. Tree
2. Path
3. Dir
4. CD

✅ Correct Answer: 4

The ….can be defined as the entire windows display and can be envisioned as the electronic equivalent of your own desk’s surface

1. Desktop
2. Windows
3. Dialog box
4. None of above

✅ Correct Answer: 1

In PC from where you will connect internet?

1. Tools
2. Network neighborhood
3. Dial up network
4. None of the above

✅ Correct Answer: 3

The program that is responsible for loading the operating system into RAM is called.

1. BIOS
2. Bootstrap program
3. Device driver
4. Supervisor program

✅ Correct Answer: 2

Copying a process from memory to disk to allow space for other processes is Called

1. Swapping
2. Deadlock
3. Demand Paging
4. Page Fault

✅ Correct Answer: 1

Which of the following command is used to ask you to confirm that you want to delete the directory?

1. Deltree/f
2. Erase *.*
3. Deltree *.*
4. Del *.*/p

✅ Correct Answer: 4

Which is an internal command?

1. Scandisk
2. XCOPY
3. Deltree
4. None of the above

✅ Correct Answer: 4

Any files deleted in Windows goes into

1. Trash can
2. Recycle bin
3. Deleted Files
4. None of above

✅ Correct Answer: 2

Which command used to delete all files from current directory?

1. Del
2. Deltree/y *
3. Del *.*
4. All of the above

✅ Correct Answer: 3

Which of the following is a disk compression tool?

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

✅ Correct Answer: 1

What does Belady’s Anomaly related to?

1. Page Replacement Algorithm
2. Memory Management Algorithm
3. Deadlock Prevention Algorithm
4. Disk Scheduling Algorithm

✅ Correct Answer: 1

A ….allows you to write on screen with a digital pen and convert that writing into characters that the PC can process

1. Monitor RS
2. Tablet PC
3. Database manager
4. Media Center

✅ Correct Answer: 2

Which is not utility program?

1. Backup
2. Scandisk
3. Data recovery
4. XCOPY

✅ Correct Answer: 4

Driver is

1. Hardware controller
2. Hardware and gain controller
3. Data controller
4. All of above

✅ Correct Answer: 1

System files allocated at

1. Boot area
2. FAT area
3. Data area
4. Directory

✅ Correct Answer: 1

Which command is used to delete all the files from root directory of drive A?

1. Del a:\
2. Del *.*
3. Del A
4. Erase * 1

✅ Correct Answer: 1