Oracle DBA 19c / 23ai Performance Tuning Quiz


1. To Enable automatic statistics Collection and automatic performance features, which of the following value must be set for the initialization Parameter STATISTICS_LEVEL


A. Either TYPICAL or ALL               B. BASIC

C. NONE                                D. AUTO


Answer: A


2. Which of the following index type is suitable for columns with low number of distinct values.


A. B-Tree Index                        B. Reverse Key Index

C. Bitmap Index                        D. Partitioned Index


Answer: C


3. By Default, What is the frequency that Oracle follows to automatically generates AWR snapshots of the performance data ?


A. Once every 6 Hour                   B. Once every 24 Hour

C. Once every 4 Hour                   D. Once every 1 Hour


Answer: D


4. By Default, for how many days, Oracle retains the AWR performance statistics data ?


A. 1 Day                               B. 8 Days

C. 7 Days                              D. 30 Days


Answer: B


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