Oracle Database 19c Performance and Tuning Management - 1z1-084 Free Exam Questions

A. Deployment

B. Upgrade or migration

C. Production

D. Design and development

E. Testing

A. DBMS_STATS.GATHER_SYSTEM_STATS

B. DBMS_STATS.GATHER_FIXED_ OBJECTS_STATS

C. DBMS_STATS.GATHER_DATABASE_STATS

D. DBMS_STATS.GATHER_DICTIONARY_STATS

A. ALTER SYSTEM SET CURSOR_INVALIDATION = DEFERRED;

B. ALTER SYSTEM SET SESSION CACHED CURSORS = 500;

C. ALTER SYSTEM SET CURSOR_SHARING = FORCE;

D. ALTER SYSTEM SET CURSOR_SPACE_FOR_TIME - TRUE;

A. Session 9822 will always stop waiting if the session that owns the TX enqueue issues a COMMIT statement as session 9822 is the first session in the transaction queue.

B. Session 8779 may be waiting for a user or application response.

C. Session 9857 waited 1354 seconds for another process, which was also waiting for a transaction to end.

D. Session 9857 is not waiting.

E. Session 8779 may be waiting due to a network problem.

F. Both 9822 and 8779 sessions are waiting for operating system resources.

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

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

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

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

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

A. The existence of two concurrent plan stability methods generates a child cursor for every execution.

B. The execution plan is the one enforced by the SQL Plan Baseline.

C. The execution plan is the one enforced by the SQL Profile.

D. The conflict between the two plan stability methods results in an error.

E. The SQL Plan Baseline must be accepted in order to be used for the execution plan.

F. The SQL Profiles as well as SQL Plan Baseline are implemented using hints, so they both generate the same plan.