Checks the disk
Give information about disk
Run from DOS mode
All of the above
✅ The correct answer is option D.
Computer mcqs
The OS used to operate the mobile phone is a
Smart card OS
Embedded OS
Multiuser OS
None of above
✅ The correct answer is option B.
What is dispatch latency?
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.
Access time is the highest in the case of
floppy disk
cache
swapping devices
magnetic disk
✅ The correct answer is option D.
Which of the following system program forgoes the production of object code to generate absolute machine code and load it into the physical main storage location from which it will be executed immediately upon completion of the assembly?
two pass assembler
load-and-go assembler
macroprocessor
compiler
✅ The correct answer is option B.
Process is
program in High level language kept on disk
contents of main memory
a program in execution
a job in secondary memory
✅ The correct answer is option C.
Which policy replace a page if it is not in the favoured subset of a process’s pages?
FIFO
LRU
LFU
Working set
✅ The correct answer is option D.
Virtual memory is
simple to implement
used in all major commercial operating systems
less efficient in utilization of memory
useful when fast I/O devices are not available
✅ The correct answer is option B.
Which is not a valid file system?
FAT 16
FAT 32
NTFS
FXZ
✅ The correct answer is option D.
Which is not an external command?
Edit
XCOPY
Sys
None of the above
✅ The correct answer is option D.