Which issue can be avoided by configuring the PCTFREE parameter?
A. row chaining and setting it has been superseded by Automatic Segment Space Management
B. table fragmentation, and has been superseded by Automatic Storage Management
C. column fragmentation
D. sort operations on disk
E. keeping a reserve area for backup
When providing partition and index recommendations, which one would SQL Access Advisor source input from?
A. SQL Tuning Advisor
B. Automatic Workload Repository
C. Automatic Database Diagnostic Monitor
D. SQL Tuning Set
To isolate performance problem in an Oracle real Application Cluster, for which two abilities would you implement Oracle Diagnostics Pack for Oracle Databases?
A. Cluster-wide performance analysis and reports with ADDM on issues that affect an entire databaseas wellas its individual instances.
B. Database-wide analysis of global resources by ADDM for high-load SQL, global cache interconnect traffic,and skew in instance response times.
C. ADDM X$ and V$ performance analysis and reports that compare the overall RAC Database to the sum ofits individual database instances.
D. ADDM recommendations inclusive of SAN and NFS mounted storage to pinpoint issues within the storagecache.
E. ADDM's ability to review SNMP trap error messages and automatically open trouble tickets.
What are three reasons an implementation of an Oracle Database Performance and Tuning solution is superior to that of scripts or third-party tools?
A. It is a part of the database, which means no added installations, configurations, extra user accounts,privilege granting, etc.
B. It eliminates the need to reverify compatibility, upgrade third-party tools, or rewrite scripts after a patch ordatabase upgrade.
C. It has the largest library of custom scripts and procedures and includes an assembly builder to maintainthem and add more.
D. Results come from the Oracle Database Optimizer and not rules or heuristics trying to predict what theoptimizer may do.
E. It is the most inexpensive tool in the market.
Which three are controllable by a resource plan, when you are using the Oracle Database 12c Multitenant option?
A. CPU
B. concurrent sessions
C. SGA
D. network I/O
E. ability to use parallel server processes
F. use of SGA memory and ability to allocate PGA
DBAs are spending an enormous amount of time trying to identify and fix SQL statements they are suspect have regressed as a result of system changes not documented by the Operations Team. What would you implement to resolve this problem?
A. Complete Oracle Enterprise Manager suite
B. SQL Performance Analyzer which helps predict and prevent SQL execution performance problems causedby environment changes
C. SQL Plan Manager which uses system histograms to extrapolate future SQL execution performance
D. Oracle Database Backup and Recovery
E. Oracle SQL Developer, which helps develop and test the SQL prior to putting it into production
Identify four problems automatically diagnosed by Automatic Database Diagnostics Monitor (ADDM).
A. log file sizing
B. log buffer sizing
C. log file problematic naming
D. Mean Time to recover (MTTR) setting
E. undersized SGA or PGA
F. oversized SGA or PGA
G. Less Time to recover (LTTR) setting
Which three are benefits of implementing an Oracle Database Performance and Tuning solution?
A. automated database diagnostics based on deep database kernel integration
B. a library of hundreds of PL/SQL procedures to choose from for writing scripts to instrument the database tocollect performance information
C. monitor and alert on every Oracle Database Database Dictionary view using SNMP MIBS built into theOptimizer
D. the most extensive and up-to-date collection of database monitoring and tuning scripts
E. built-in instrumentation, real-time and historical monitoring, and data collection
F. a performance methodology
Which is a true statement about Automatic Database Diagnostic Monitor (ADDM)?
A. ADDM analyzes information in RMAN.
B. Automatic Workload Repository (AWR) analyzes information stored in snapshots in tables of ADDM.
C. ADDM analyzes information stored in snapshots in tables of the Automatic Workload Repository (AWR).
D. ADDM and AWR are new features of Oracle Database 12c.
E. APEX is required to access ADDM.
Which option is recommended when gathering Optimizer system statistics on a regular basis to ensure optimal performance?
A. lock out user sessions and gather system statistics overnight
B. gather system statistics after a performance issue has been reported
C. gather system statistics for several hours when there is no workload
D. gather system statistics for several hours during normal workload periods
E. shut down any running applications prior to collection
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