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Question Detail
Fragmentation of a file system
- occurs only is file is not used properly
- can always be prevented
- happens in all file systems
- can be removed by compaction
Answer: Option B
1. Dynamic allocation of storage areas with VSAM files is accomplished by
- hashing
- control splits
- over flow areas
- relative recording
Answer: Option B
2. A hardware device which is capable of executing a sequence of instructions, is known as
- CPU
- ALU
- CU
- Processor
Answer: Option D
3. 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
4. Fragmentation of a file system
- occurs only is file is not used properly
- can always be prevented
- happens in all file systems
- can be removed by compaction
Answer: Option B
5. Four necessary conditions for deadlock are non pre-emption, circular wait, hold and wait and
- mutual exclusion
- race condition
- buffer overflow
- None of above
Answer: Option A
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