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What are two reasons for which the Diagnostics and Tuning packs are essential to ongoing maintenance of
an Oracle Database?

A. With Diagnostics and Tuning Packs installed, an Oracle database recovers easily from a crash or
corruption.

B. Oracle Databases are constantly changing; more users, data added and deleted, varying SQL at
application level.

C. Diagnostics and Tuning Packs are needed to keep Oracle Database table and index statistics current.

D. Inefficient “Bad” application SQL can be detected by Diagnostics Pack and then optimized utilizing
Tuning Pack SQL Profiles, even if it can’t be changed at the application end.

E. Diagnostics and Tuning packs are a prerequisite for a customer to license Oracle Database Enterprise
Edition.

Explanation:

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