Q. If an transaction is performed in a database and committed, the changes are taken to the previous state of transaction by

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Q. When the transaction finishes the final statement the transaction enters into

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Q. Which of the following is an atomic sequence of database actions?

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Q. DBMS periodically suspends all processing and synchronizes its files and journals through the use of

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Q. A race condition occurs when

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Q. Data integrity control

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Q. The type of constraints that specifies the uniqueness of data stored in the database are considered as

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Q. The property of DBMS which ensures the execution of all the operations in transaction or none of the operation is executed is classified as

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Q. The control feature in database management system which ensures the accuracy of data updated by multiple users is classified as

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Q. The property of DBMS which ensures whether the hundreds of applications are executed, each transaction must be executed in isolation is classified as

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Q. If a transaction has obtained a __________ lock, it can read but cannot write on the item

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Q. If a transaction has obtained a ________ lock, it can both read and write on the item

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Q. A transaction can proceed only after the concurrency control manager ________ the lock to the transaction

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Q. If a transaction can be granted a lock on an item immediately in spite of the presence of another mode, then the two modes are said to be ________

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Q. A transaction is made to wait until all ________ locks held on the item are released

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Q. State true or false: It is not necessarily desirable for a transaction to unlock a data item immediately after its final access

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Q. The situation where no transaction can proceed with normal execution is known as ________

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Q. The protocol that indicates when a transaction may lock and unlock each of the data items is called as __________

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Q. If a transaction Ti may never make progress, then the transaction is said to be ____________

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Q. The two phase locking protocol consists which of the following phases?

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