271. Which of the following windows version support 64 bit processor?
Windows 98
Windows 2000
Windows XP
Windows 95
✅ The correct answer is option C.
Computer
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272. A disk scheduling algorithm in an operating system causes the disk arm to move back and forth across the disk surface in order to service all requests in its path. This is a
First come first served
Shortest Seek Time First (SSTE)
Scan
FIFO
✅ The correct answer is option C.
273. Backups should be done
daily for most installations
weekly for most installations
as several image copies, followed by an incremental
as several incrementals, followed by an image copy
✅ The correct answer is option D.
274. The Primary job of the operating system is
Manage Commands
Manage Users
Manage Programs
Manage Resources
✅ The correct answer is option D.
276. The FIFO algorithm
executes first the job that last entered the queue
executes first the job that first entered the queue
execute first the job that has been in the queue the longest
executes first the job with the least processor needs
✅ The correct answer is option B.
277. Which key deletes text before, or to the left, of the insertion point?
PageUp
Delete
PageDown
BackSpace
✅ The correct answer is option D.
278. Operating System manages
Memory
Processor
I / O devices
All of the above
✅ The correct answer is option D.
279. What is contained in the page table?
Base address of each frame and corresponding page number
Memory address and corresponding page number
File name and corresponding page number
None of Above
✅ The correct answer is option A.
280. The advantage of a command processor running only built-in commands is:
flexibility to the users in running lists of commands by simply collecting them in named batch command files
the command set being common across different hardware configurations
users can create system programs and run them as commands
the processing is much faster than would other-wise be the case when user defined commands are used
✅ The correct answer is option B.