Free Oracle 1Z0-084 Actual Exam Questions

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

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

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

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

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

A. Oracle Automatic Reoptimization

B. Database Resource Manager

C. Oracle SQL Performance Management

D. Oracle SQL Tuning Advisor

E. Oracle Scheduler

A. Setting Cursor_sharing to FORCE can result in a plan that is suboptimal for the majority of values bound to a bind variable when executing a cursor with one or more bind variables.

B. Adaptive Cursor Sharing guarantees that a suboptimal plan will never be used on any execution of a SQL statement.

C. Setting optimizer_capture_sql_plan_baselines to TRUE loads all adaptive plans for the same statement into the cursor cache.

D. Setting cursor_sharing to EXACT prevents Adaptive Cursor Sharing from being used.

E. Adaptive Cursor Sharing requires histograms on filtered columns, used in equality predicates, to allow different execution plans to be generated for statements whose bound values would normally generate different plans at hard parse time.

A. The user lacks the required privileges to execute the DBMS WORKLOAD CAPTURE package or the directory.

B. There is a file in the capture directory.

C. The syntax is incomplete.

D. The capture directory is part of the root file system.

E. The instance is unable to access the capture directory.

A. They are notifications from the Oracle Database Server of an existing or impending problem.

B. They provide notifications but never any suggestions for correcting the identified problems.

C. They are logged in the alert log.

D. They can be viewed only from the Cloud Control Database home page.

E. Their threshold settings can be modified by using DBMS_SERVER_ALERT.

F. They may contain suggestions for correcting the identified problems.

A. Option

B. Option

C. Option

D. Option

E. Option

F. Option

G. Option

A. It always gives preference to the IM column store clause defined at the tablespace level over table-level definitions.

B. It must always transports existing INMEMORY attributes.

C. Its INMEM0RY_CLAUSE of the Data Pump Export allows modifications to IM column store clause of a table with existing INMEMORY setting.

D. Its TRANSFORM clause can be used to add the INMEMORV clause to exported tables that lack them.

E. It ignores the IM column store clause of the exporting objects.

F. It can generates the INMEMORY clause that matches the table settings at export time.