Question Detail

Which technique is used by operating systems to execute several programs concurrently by switching back and forth

Partitioning
Multitasking
Windowing
Paging

Answer: Option C

Similar Questions :

1. Dirty bit is used to show

Page with corrupted data
Wrong page in memory
Page that is modified after being loaded in the cache memory
page that is less frequently accessed

Answer: Option C

2. Which scheduling policy is best suited for time-sharing operating systems

Shortest job first
Round robin
First come first serve
Elevator

Answer: Option B

3. Root directory of a disk should be placed

at the fixed address in the main memory
at a fixed location on the disk
at the fixed location on system disk
anywhere on the disk

Answer: Option B

4. Problem of thrashing is affected significantly by

program structure
program size
primary storage size
all of above

Answer: Option A

5. Dynamic allocation of storage areas with VSAM files is accomplished by

hashing
control splits
over flow areas
relative recording

Answer: Option B

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