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Database systems Practice Questions & Answers

0 vote

In optimistic locking, the assumption is made that conflict will occur.

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In optimistic locking, the assumption is made that conflict will occur.

A).  True

B).  False

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Locks placed by the DBMS are explicit locks.

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Locks placed by the DBMS are explicit locks.

A).  True

B).  False

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When two transactions are being processed against the database at the same time they are termed concurrent transactions.

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When two transactions are being processed against the database at the same time they are termed concurrent transactions.

A).  True

B).  False

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The size of a lock is referred to as lock sizing.

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The size of a lock is referred to as lock sizing.

A).  True

B).  False

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When one transaction reads a changed record that has not been committed to the database a filthy read occurs.

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When one transaction reads a changed record that has not been committed to the database a filthy read occurs.

A).  True

B).  False