11. READ COMMITTED is the default isolation level.

A. True
B. False

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12. A differential backup makes a copy of the entire database.

A. True
B. False

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13. SQL Server supports three recovery modes: simple, full and Bulk.

A. True
B. False

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14. SERIALIZABLE is the strictest isolation level.

A. True
B. False

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15. With SQL Server pessimistic locking, no lock is obtained until the user updates the data.

A. True
B. False

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