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Q21. Which two statements are true about Oracle Enterprise Manager Database Express?
A. It uses internal infrastructure components, such as XDB and SQL*NET.
B. It can perform actions inside and outside the database.
C. Performance Hub and Composite Active Reports are its key functionalities.
D. It is not supported on Oracle Standard Edition or Express Edition.
E. It replaces Oracle Grid Control.
Answer: A,C
Reference: http://www.oracle.com/technetwork/database/manageability/emx-intro-1965965.html
Q22. When implementing an Oracle Database Performance and Tuning solution, which are three product technologies recommended for use as your base configuration?
A. SQL Tuning Pack for Oracle Database
B. Oracle Tuning Pack for Oracle Database
C. Oracle Performance Pack for Oracle Database
D. Oracle Diagnostics Pack for Oracle Database
E. Oracle Real Application Testing
F. Oracle SQL Developer
G. STATSPACK
Answer: B,D,E
Reference: http://www.oracle.com/partners/en/most-popular-resources/db-performance-tuning-study-guide2138991.pdf (See page #03, Application product technology subject areas include).
Q23. Starting with Oracle Database 11gR2, which are two additional partitioning capabilities that aid Oracle Database Performance and Tuning?
A. Hash Partitioning
B. Reference Partitioning
C. Composite Partitioning
D. Interval Partitioning
E. Disk Partitioning
Answer: C,D
Q24. Which are two characteristics of “invisible” index functionality that would help tune a database having thousands of legacy indexes?
A. An invisible index is ignored by the optimizer.
B. After an index becomes invisible, it is no longer maintained during insertsand updates.
C. I/O bottlenecks are easy to spot when invisible indexes are used.
D. An index only needs to be rebuilt for it to be visible again.
E. The session or system parameter needs to be changed toOPTIMIZER_USE_INVISIBLE_INDEXEStoTRUEfor an invisible index to become visible to the Optimizer.
Answer: A,E
Q25. The IT team said that a system appeared OK based on their third-party network and systems management tool; yet customers continue to complain of database performance-related issues. Which two would you implement to find and fix the problem?
A. Oracle Real User Experience Insight
B. Oracle Application Testing Suite
C. Oracle Exadata
D. Oracle Real Application Clusters
E. Oracle Diagnostic and Tuning Pack for Oracle Database
Answer: D,E
Q26. 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
Answer: A
Q27. Which two could Oracle Database Replay is used to validate performance?
A. applying workload to an application after an operating system patch
B. applying a workload from one database release to another database release
C. moving a workload from a single database instance and applying it to an Oracle Real Application Cluster(RAC)
D. to check and compare if a specific set of SQL statements have regressed between two different databasereleases
E. to find the least-used SQL statement
Answer: A,C
Q28. When performing performance analysis of Oracle Real Application Cluster (RAC) databases, what are three Automatic Database Diagnostics Monitoring (ADDM) analysis modes that are available?
A. Database
B. Instance
C. Partial
D. Sample
E. Average
Answer: A,B,C
Q29. Which is a prerequisite for using an Oracle Database Performance and Tuning solution?
A. Linux Operating system
B. 8 GB of memory
C. Oracle Database Enterprise Edition
D. Oracle Enterprise Manager
E. deep knowledge of Oracle Storage subsystems
Answer: C
Q30. An Oracle Database customer's VP of Development mentions that they've moved to AGILE development methodology and DevOps requires an ability to view, test, or validate performance in their own development environment. Which two do you implement?
A. Oracle Application Infrastructure Tester
B. Oracle Application Testing Suite
C. SQL Developer
D. Oracle Real Application Testing
E. APEX and SQL Developer
F. Oracle Testing Pack
Answer: B,D
