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Operating System :: Process Management

Home > Operating System > Process Management > General Questions

1. Match the following?

i) Software Interrupt mechanism (l)Deadlock
ii) Passing data from one process to another process (2)Signals
iii) A situation wherein two or more competing actions (3)Preemptive multitasking
are waiting for the other to finish, and thus
neither ever does
iv) Allows the computer system to more reliably guarantee each process a regular slice of operating time (4)Pipe

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Answer: Option B

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2. Which of the following are true with respect to deadlock conditions?

1) Mutual exclusion: a resource that cannot be used by more than one process or thread at a time

2) Hold and wait: processes already holding resources may request new resources

3) No preemption: No resource can be forcibly removed from a process holding it, resources can be released only by the explicit action of the process

4) Circular wait: two or more processes form a circular chain where each process waits for a resource that the next process in the chain holds

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Answer: Option D

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3. Which of the following algorithm is used for deadlock avoidance?

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Answer: Option B

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Answer: Option B

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Answer: Option A

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Answer: Option B

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7. The process in which OS saves all data associated with current process and switches over to the next is called

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Answer: Option C

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8. Background running processes are typically called

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Answer: Option A

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9. An optimal scheduling algorithm in terms of minimizing the average waiting time of a given set of processes is ________.

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Answer: Option C

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Answer: Option A

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