Free Oracle 1z1-084 Practice Test & Real Exam Questions

Exam Code/Number: 1z1-084
Exam Name/Title: Oracle Database 19c Performance and Tuning Management
Certification Provider: Oracle
Corresponding Certification: Oracle Database 19c

Exam Questions: 57
Updated On: Oct 06, 2026

Question #7

Which three types of statistics are captured by statspack with snap level 6?

A. Parent and child latches

B. Segment-level statistics

C. Plan usage data

D. Parent and child latches

E. Optimizer execution plans

F. Enqueue statistics

Discussion 0

Correct Answer: A,B,F Vote an answer

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Question #8

What are the least elevated values of statistics_level and C0NTR0LJ4ANAGEMENT_PACK_ACCESS that allow the usage of Monitoring of Database Operations?

A. STATISTICS_LEVEL=TYPICAL and CONTROL_MANAGEMENT_PACK_ACCESS-
DIAGOSTIC*TUNING

B. STATISTICS_LEVEL=ALL and
CONTROL_MANAGEMENT_PACK_ACCESS=DIAGOSTIC+TUNING

C. STATISTICS_LEVEL=TYPICAL and CONTROL_MANAGEMENT_PACK_ACCESS=DIAGOSTIC

D. STATISTICS_LEVEL=BASIC and CONTROL_MANAGEMENT_PACK ACCESS=DIAGOSTIC

Discussion 0

Correct Answer: B Vote an answer

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Question #9

Buffer cache access is too frequent when querying the SALES table. Examine this command which executes successfully:
ALTER TABLE SALES SHRINK SPACE;
For which access method does query performance on sales improve?

A. index full scan

B. db file scattered read

C. index range scan

D. db file sequential read

Discussion 0

Correct Answer: D Vote an answer

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Question #10

You must produce a consolidated formatted trace file by combining all trace files generated by all clients for a single service.
Which combination of utilities does this?

A. Trace Analyzer and Tracsess

B. TKPROF and Trace Analyzer

C. Trcsess and TKPROF

D. Autotrace and TKPROF

Discussion 0

Correct Answer: C Vote an answer

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Question #11

Which two statements are true about the use and monitoring of Buffer Cache Hit ratios and their value in tuning Database I/O performance?

A. A 60% cache hit ratio can be observed for database instances which have very good I/O performance.

B. The buffer cache advisory view v$db_cache_advice provides advice on cache hit ratios appropriate for the instance workload.

C. The performance of workloads that primarily generate full table scans and fast full index scans are always affected by the cache hit ratio.

D. Both the RECYCLE and KEEP buffer caches should always have a very high cache hit ratio.

E. A 99% cache hit ratio can be observed for database instances which have very poor I/O performance.

Discussion 0

Correct Answer: B,E Vote an answer

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Question #12

You must configure and enable Database Smart Flash Cache for a database.
You configure these flash devices:

Examine these parameter settings:

What must be configured so that the database uses these devices for the Database Smart Flash Cache?

A. Disable Automatic Memory Management and set SGA_TARGET to 256G.

B. Set DB_FLASH_CACHE_SIZE to 256G and change device /dev/sdk to 128G.

C. Set DB_FLASH_CACHE_SIZE to 192G and MEMORY_TARGET to 256G.

D. Set DB_FLASH_CACHE_SIZE parameter to 128G, 64G.

E. Set DB_FLASH_CACHE_SIZE parameter to 192G.

Discussion 0

Correct Answer: D Vote an answer

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