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321. What is dispatch latency?

September 4, 2025 by Admin
The time taken by the dispatcher to stop one process and start another
The time taken by the processor to write a file into disk
The whole time taken by all processor
None of Above
✅ The correct answer is option A.
Categories Computer, Operating System Tags Computer mcqs, Operating System mcqs Leave a comment

284. User-Friendly Systems are:

September 4, 2025 by Admin
required for object-oriented programming
easy to develop
common among traditional mainframe operating systems
becoming more common
✅ The correct answer is option D.
Categories Computer, Operating System Tags Computer mcqs, Operating System mcqs Leave a comment

287. Memory management is :

September 4, 2025 by Admin
not used in modern operating system
replaced with virtual memory on current systems
not used on multiprogramming systems
critical for even the simplest operating systems
✅ The correct answer is option D.
Categories Computer, Operating System Tags Computer mcqs, Operating System mcqs Leave a comment

290. Data encryption

September 4, 2025 by Admin
is mostly used by public networks
is mostly used by financial networks
cannot be used by private installations
is not necessary, since data cannot be intercepted
✅ The correct answer is option B.
Categories Computer, Operating System Tags Computer mcqs, Operating System mcqs Leave a comment

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

September 4, 2025 by Admin
Save
Create
Rename
All of above
✅ The correct answer is option A.
Categories Computer, Operating System Tags Computer mcqs, Operating System mcqs Leave a comment

295. In a folder, which of the following key is used to rename the file or folder

September 4, 2025 by Admin
F3
F4
F2
F7
✅ The correct answer is option C.
Categories Computer, Operating System Tags Computer mcqs, Operating System mcqs Leave a comment

297. In which addressing mode the contents of a register specified in the instruction are first decremented, and then these contents are used as the effective address of the operands?

September 4, 2025 by Admin
index addressing
indirect addressing
auto increment
auto decrement
✅ The correct answer is option D.
Categories Computer, Operating System Tags Computer mcqs, Operating System mcqs Leave a comment

299. The primary purpose of an operating system is to:

September 4, 2025 by Admin
make computer easier to use
keep system programmers employed
make the most efficient use of the hardware
allow people to sue the computers
✅ The correct answer is option C.
Categories Computer, Operating System Tags Computer mcqs, Operating System mcqs Leave a comment

301. Which of the following statement about directories is false?

September 4, 2025 by Admin
Directories can exist inside directories
The root directory is always at the highest level
Directories cannot be renamed
Directories can be deleted
✅ The correct answer is option C.
Categories Computer, Operating System Tags Computer mcqs, Operating System mcqs Leave a comment

303. Which of the following are loaded in safe mode?

September 4, 2025 by Admin
Keyboard driver
Mouse driver
VGA drive
All of above
✅ The correct answer is option D.
Categories Computer, Operating System Tags Computer mcqs, Operating System mcqs Leave a comment
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