Q. Lock timeouts have which of the following advantages?

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Q. The _________ graph describes deadlocks precisely

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Q. How do we generally recover from a deadlock?

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Q. State true or false: Partial rollback is not possible.

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Q. Which of the following steps must be taken while choosing a victim?

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Q. Which of the following cannot be used to implement a timestamp

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Q. A logical counter is _________ after a new timestamp has been assigned

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Q. W-timestamp(Q) denotes?

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Q. R-timestamp(Q) denotes?

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Q. A ________ ensures that any conflicting read and write operations are executed in timestamp order

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Q. The default timestamp ordering protocol generates schedules that are

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Q. State true or false: The Thomas write rule has a greater potential concurrency than the timestamp ordering protocol

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Q. Which of the following timestamp based protocols generates serializable schedules?

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Q. In timestamp ordering protocol, suppose that the transaction Ti issues read(Q) and TS(Ti)<W-timestamp(Q), then

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Q. In timestamp ordering protocol, suppose that the transaction Ti issues write(Q) and TS(Ti)<W-timestamp(Q), then

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Q. The _________ requires each transaction executes in two or three different phases in its lifetime

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Q. During __________ phase, the system reads data and stores them in variables local to the transaction.

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Q. During the _________ phase the validation test is applied to the transaction

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Q. During the _______ phase, the local variables that hold the write operations are copied to the database

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Q. Read only operations omit the _______ phase

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