1Z0-054 Questions and Answers

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Oracle Database 11g: Performance Tuning: 1Z0-054

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Vendor: Oracle

Certifications: Oracle Database Application Development

Exam Name: Oracle Database 11g: Performance Tuning

Exam Code: 1Z0-054

Total Questions: 192 Q&As

Last Updated: Dec 14, 2021

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1Z0-054 Online Practice Questions and Answers

Questions 1

Examine the query output shown below:

SQL> SELECT sum(pins), sum(reloads), sum(reloads)/sum(pins) FROM v$librarycache;


16479 16000 0.9709327

Which statement describes the correct interpretation of the reloads-to-pin ratio and the action to be taken?

A. This ratio is reasonable. However, decrease the shared pool size for better performance.

B. This ratio is very high and the shared pool size should be increased immediately to reduce this ratio.

C. This ratio is reasonable. However, this needs monitoring. Increase the shared pool size only if the ratio crosses 1.

D. This ratio is reasonable. However, this needs monitoring. Increase the shared pool size only if the ratio falls below 0.1.

Show Answer
Questions 2

View the Exhibit and examine the output for the query on V$IOSTAT_FUNCTION.Which two statements are true about the interpretation of the output? (Choose two.)

A. The I/O statistics are only for the single block read and write operations.

B. The I/O statistics are for single block or multi-block read and write operations.

C. If there is a conflict of I/O functions, the I/O is placed in the bucket with the lower FUNCTION_ID.

D. If there is a conflict of I/O functions, the I/O is placed in the bucket with the higher FUNCTION_ID.

Show Answer
Questions 3

As part of a proactive tuning activity, you have the Automatic Workload Repository (AWR) and ADDM enabled for your database with the default setting of snapshot retention as 8 days and snapshot interval as 60 minutes.Which performance issue does NOT appear in the ADDM and needs alternative tools for investigation?

A. suboptimal parameter settings

B. application-level block contention

C. performance issues related to the Resource Manager

D. short-lived or intermittent performance issues lasting for less than 5 minutes

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