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Question Detail
Which method is used to establish priority by serially connecting all devices that request an interrupt ?
- Interrupt
- Polling
- Priority
- Daisy chaining
Answer: Option D
1. In which of the following status flags required for data transfer are present ?
- Interface Circuit
- Parallel Line
- Device Circuit
- None of Above
Answer: Option A
2. User programs interact with I/O devices through ?
- Operating System
- Hardware
- Buses
- Processor
Answer: Option A
3. What is meaning of PCB ?
- Process control block
- Preempitive control block
- Process close block
- Process carrying block
Answer: Option A
4. Asynchronous means ?
- Not in step with the elapse of time
- Not in step with the elapse of address
- Not in step with the elapse of data
- Not in step with the elapse of control
Answer: Option A
5. In which condition only one process holds a resource at a given time ?
- Circular queue
- Hold and Wait
- Mutual exclusion
- Non preemption
Answer: Option C
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