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

A. The syntax is incomplete. B. The user lacks the required privileges to execute the DBMS WORKLOAD CAPTURE package or the directory. C. The instance is unable to access the capture directory. D. The capture directory is part of the root file system. E. There is a file in the capture directory.

A. Deployment B. Production C. Design and development D. Testing E. Migration or upgrade

A. 1 B. 3 C. 5 D. 52

A. Both the RECYCLE and KEEP buffer caches should always have a very high cache hit ratio. 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. A 99% cache hit ratio can be observed for database instances which have very poor I/O performance. D. The buffer cache advisory view v$db_cache_advice provides advice on cache hit ratios appropriate for the instance workload. E. A 60% cache hit ratio can be observed for database instances which have very good I/O performance.

A. SQL Row Source Generation B. SQL Adaptive Execution C. SQL Semantic Check D. SQL Execution E. SQL Transformation

A. Use DBMS STATS.DROP ADVISOR TASK to drop the AUTO_STATS_ADVISOR_TASK task. B. Set the AUTO_STATS_ADVISOR_TASK global statistics preference to FALSE. C. Set the parameter OPTIMIZER_ADAPTIVE_STATISTICS to FALSE. D. Use DBMS_AUTO_TASK_ADMIN. DISABLE to disable the AUTO_STATS_ADVISOR_TASK task.