OS Objective Questions From 251 to 300

251. 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

252. Tree structure displays the

a. File only
b. Directory only
c. File and directory name
d. None of above

253. Windows 2000 server uses the

a. FAT 16
b. NTFS
c. FAT 64
d. FAT 32

254. 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

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

a. Non Preemptive Scheduling
b. Preemptive Scheduling
c. Fair Share Scheduling
d. Deadline Scheduling

MCQ Sets presents operating system MCQ Questions. There are altogether 442 MCQ Questions from operating system.

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

a. F7
b. F8
c. F9
d. F5

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

a. F4
b. F7
c. F8
d. F5

258. Press ____ key while booting to display Advanced Boot Menu

a. F5
b. F6
c. F8
d. Del

259. 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

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

a. F3
b. F4
c. F2
d. F7

261. A character that represents one or more unknown character is

a. Wildcard character
b. All file name
c. Extensions
d. None of above

262. Which of the following file format supports in Windows 7?

a. NTFS
b. BSD
c. EXT
d. All of the above

263. 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

264. 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

265. 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.

266. 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

267. Netscape navigator is a

a. Browser
b. Compose
c. Editor
d. None of these

268. 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

269. Which of the following appear in Windows menu bar?

a. Help
b. File
c. Edit
d. All of above

270. 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

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

a. Primary clicking
b. Pointing
c. Double clicking
d. Secondary clicking

272. Essential files of DOS are

a. Command.com and IO.Sys
b. IO.Sys and DOS.Sys
c. DOS.Sys and Command.com
d. Autoexec.bat and Config.sys

273. Which operating system does not support long file names?

a. OS/2
b. Windows 98
c. DOS 6.2
d. Windows NT

274. Which operating system uses short file names?

a. Windows
b. Unix
c. DOS
d. All of above

275. Pick out odd

a. Windows
b. Window
c. DOS
d. Linux

276. 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

277. 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

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

a. Briefcase
b. Clipboard
c. Document
d. Boot

279. 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

280. Desktop is a

a. Provides workspace
b. Screen saver
c. Display program
d. Working with my document

281. The operating system manages

a. Memory
b. Processes
c. Disks and I/O devices
d. All of above

282. The operating system manages

a. Memory
b. Processes
c. Disks and I/O devices
d. all of the above

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

a. Copy
b. Move
c. Diskcopy
d. All of above

284. Which of the following is not a system tool?

a. Scandisk
b. Drive space
c. Disk defragmenter
d. Doskey

285. DOS stand for

a. Dummy operating system
b. DOS operating system
c. Dirty operating system
d. Disk operating system

286. 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

287. 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

288. 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

289. Which command displays only directory?

a. Dir/aa
b. Dir/od
c. Dir/directory
d. Dir/ad

290. Which command permits to see the directory structure in DOS?

a. Display structure
b. Tree
c. Dir/all
d. All of above

291. To display hidden files

a. Dir/hidden
b. Attrib/ah
c. Dir/ah
d. None of above

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

a. Dir *.exe
b. Dir *.exe/s
c. Dir *.exe/all
d. None of above

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

a. CLS
b. Clear
c. Dir
d. CHKDSK

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294. Which command will you use to display the system date?

a. Date
b. Ver
c. Dir
d. Format

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

a. Tree
b. Path
c. Dir
d. CD

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

a. Desktop
b. Windows
c. Dialog box
d. None of above

297. In PC from where you will connect internet?

a. Tools
b. Network neighborhood
c. Dial up network
d. None of the above

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


a. BIOS
b. Bootstrap program
c. Device driver
d. Supervisor program

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

a. Swapping
b. Deadlock
c. Demand Paging
d. Page Fault

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

a. Deltree/f
b. Erase *.*
c. Deltree *.*
d. Del *.*/p