19. data dictionary

DBMS Published 30 Sept 2026 Updated 30 Sept 2026 0 Views Verified

What is the data dictionary/catalog used for?

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Answer & Explanation

4 Answers

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Option A

It stores only customer orders.

Additional Explanation

This option is incorrect for the stated requirement.

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Option B

It is a cache of browser cookies.

Additional Explanation

This option is incorrect for the stated requirement.

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Option C

It stores metadata about database objects, columns, constraints, indexes, privileges and other system information.

Additional Explanation

Correct implementation. Prefer parameterized queries in application code, validate affected rows for UPDATE/DELETE, and use transactions for related writes.

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Option D

It is a CSV import tool.

Additional Explanation

This option is incorrect for the stated requirement.