DML and SQL statement results that do not match between the capture and replay systems
When errors that occur in the capture system dont occur in the replay system
Top SQL statements
Infrastructure or system-configuration differences
Time-of-day differences between capture and replay systems
第1题:
A. The COMMIT order in the captured workload is preserved during replay.
B. The value 100 in the THINK_TIME_SCALE parameter attempts to make the replay client shorten the think time between calls.
C. The value 100 in the CONNECT_TIME_SCALE parameter attempts to connect all sessions as captured.
D. The value 100 in the THINK_TIME_SCALE parameter attempts to match the captured user think time while replaying.
E. The value 100 in the CONNECT_TIME_SCALE parameter attempts to connect all sessions immediately as soon as the replay begins.
第2题:
Your database supports an online transaction processing (OLTP) application.The application is undergoing some major schema changes, such as addition of new indexes and materialized views.You want to check the impact of these changes on workload performance.What should you use to achieve this?()
A. Database replay
B. SQL Tuning Advisor
C. SQL Access Advisor
D. SQL Performance Analyzer
E. Automatic Workload Repository compare reports
第3题:
(ii) evaluates the relative performance of the four depots as indicated by the analysis in the summary table
prepared in (i); (5 marks)
第4题:
The application workload on your database is same between 10 a.m. and 11 a.m. on weekdays. Suddenly you observe poor performance between 10 a.m. and 11 a.m. in the middle of the week. How would you identify the changes in configuration settings, workload profile,and statistics to diagnose the possible causes of the performance degradation?()
第5题:
What is the purpose of configuring Workload Manager on a server used for development and QA?()
第6题:
A. The clients must be created manually on the test machines to perform more realistic testing.
B. Restart the database in RESTRICTED mode before beginning workload replay to enable a clean state for workload replay.
C. Restart the database in RESTRICTED mode before beginning workload capture to enable a clean state for capturing the workload.
D. The application state of the capture system must be identical to the application state of the replay system when the workload replay begins.
第7题:
Your database supports a DSS workload that involves the execution of complex queries: Currently, the library cache contains the ideal workload for analysis. You want to analyze some of the queries for an application that are cached in the library cache.What must you do to receive recommendations about the efficient use of indexes and materialized views to improve query performance?()
A. Create a SQL Tuning Set (STS) that contains the queries cached in the library cache and run the SQL Tuning Advisor (STA) on the workload captured in the STS.
B. Run the Automatic Workload Repository Monitor (ADDM).
C. Create an STS that contains the queries cached in the library cache and run the SQL Performance Analyzer (SPA) on the workload captured in the STS.
D. Create an STS that contains the queries cached in the library cache and run the SQL Access Advisor on the workload captured in the STS.
第8题:
A. the SQL text SQL
B. the execution plan
C. the execution context
D. the execution frequency
E. the system change number (SCN)
第9题:
Which three statements about performance analysis by SQL Performance Analyzer are true? ()
第10题:
In a Database Replay workload capture, what client request information is gathered?()