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Exam Name: Database Performance and Tuning Essentials 2015
NO.1 IT Operations had observed short CPU spikes and I/O storms prior to a retail website outage.
Which functionality of Diagnostics Pack for Oracle
Databases would you implement to diagnose and
resolve the customers
issue?
A. Active Workload History to collect SQL at the time of its
execution.
B. Active Session History to capture sessions and dump the SQL
executing, performance attributes
andrelevant information into a buffer for
analysis.
C. Oracle Exadata, as it already includes Diagnostic Pack for
Oracle Database.
D. Active SQL History Analyzer to doperform a comparison of
SQL statements before and after.
E. SQL Performance Analyzer to capture the
information in the SGA, the sessions active, and analyze
theSQL
executing.
F. Oracle Workload Advisor that automatically turns on and
captures the offending SQL Statements
whenthresholds are reached.
Answer:
C
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NO.2 Which one would SQL Access Advisor use
as input to provide a recommendation on a partition
or index?
A. SQL
Tuning SetE. SQL Error
B. SQL Tuning Advisor
C. Automatic Diagnostic
Monitor
D. Automatic Workload Repository
Answer: B
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NO.3 When managing multiple database
instances on a single server, which initialization parameter
limits the
number of CPU's that an instance can use simultaneously?
A. NUM_CPU
B.
LIMIT_CPU
C. CPU_COUNT
D. CPU_NUM
E. MAX_CPU
Answer:
C
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Reference:
http://docs.oracle.com/html/E25494_01/dbrm008.htm
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