Which of the following statements correctly describes Isolation and Transaction Isolation Levels in a database system?
Which of the following statements correctly describes Isolation and Transaction Isolation Levels in a database system?
Statement-1: Ensuring the isolation property is the responsibility of a component
of the database system called the concurrency-control system.
Statement-2: The isolation levels may be Serializable, Repeatable read, Read
committed, Read uncommitted and all the isolation levels additionally disallow dirty writes, that is, they disallow writes to a data item that has already been written by another transaction that has not yet committed or aborted.
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Correct answer: (A) Statement-1 is True and Statement-2 is True