INTERVIEW QUESTIONS OPERATING SYSTEMS DETAILS

Question: Describe the two phases of two-phase locking?

Answer: In the first phase, the process tries to lock all the records it needs, one at a time. If it succeeds, it begins the second phase, performing its updates and releasing the locks. No real work is done in the first phase.

In the first phase, the process tries to lock all the records it needs, one at a time. If it succeeds, it begins the second phase, performing its updates and releasing the locks. No real work is done in the first phase. Source: CoolInterview.com

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