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Q1. You are asked to implement Automatic Memory Management (AMM) and you added two initialization parameters to do this. The following are the some of the parameter settings:
When you tried to start the database instance with these parameter settings, you received the following error:
ORA-00824: cannot set SGA_TARGET or MEMORY_TARGET due to existing internal settings, see alert log for more information
You modified the parameter settings as shown below and the database instance started successfully.
Analyze the parameter settings and identify why the instance failed to start the first time?
A. because the STATISTICS_LEVEL parameter was set to BASIC
B. because the PGA_AGGREGATE_TARGET parameter was set to zero
C. because both the SGA_TARGET and MEMORY_TARGET parameters were set
D. because MEMORY_TARGET and MEMORY_MAX_TARGET parameters were equal
E. because the PROCESSES parameter was set to a value less than the minimum required
Q2. View the Exhibit. Examine the query on the v$servicemetric view and the output.You wish to define a service-level threshold based on wall-clock time to monitor the performance of the service.
Which metric should be used to set the appropriate threshold?
Q3. View the Exhibit and examine the Load Profile from the AWR report of a test database.The application must process an average of 10,000 very small transactions per day. The bulk of the processing activity is for DML operations with minimal to nil query processing.
Which two statements are correct about the values of the Physical reads events? (Choose two.)
A. The per second value indicates the total number of data blocks read from disk to only the buffer cache.
B. The per transaction value includes both the db block gets and the consistent gets that occurred during the last sample period.
C. The per transaction value indicates that write or update transactions have been committed or rolled back during the last sample period.
D. The per second value indicates the total number of data blocks read from disk to the buffer cache including reads bypassing the buffer cache, and reads into process private buffers.
Q4. You work in an online transaction processing (OLTP) environment and users are experiencing slow response time on their queries. These users connect as FINANCE to run their application and run hundreds of sessions. Your investigation shows that there is lot of I/O contention happening on only one temporary tablespace and there is no load on other temporary tablespaces. View the Exhibit and examine the details. After some time you observed that the sort operations are running out of temporary space.
What would be a long-term solution?
A. Configure the large pool if it is not done already.
B. Change the temporary tablespace assigned to this user ID.
C. Create and assign temporary tablespace group to this user ID.
D. Increase the number of database writer (DBWn) processes ID.
E. Make the bigger temporary tablespace the default temporary tablespace ID.
Q5. In which two scenarios would you recommend using RAID level 5 as an option for database storage?(Choose two.)
A. For a database with lower recovery (MTTR) overhead
B. For a database in which the applications primarily perform read operations and predominantly sequential I/O is performed
C. For a database in which performance is the primary goal of the database because applications are demanding in terms of I/O operations
D. For a database in which the database size grows rapidly, the cost of storage is critical and data accessibility is more important than performance
Q6. View the Exhibit and examine portions of two ASH reports generated for the same time period. The second report was generated after the ASH data is flushed to disk.
Why is the sample count reduced in the second report?
A. because the AWR is not able to store all the samples.
B. because the samples have been filtered from ASH buffer.
C. because a portion of the ASH rolling buffer has been overwritten.
D. because the shared pool size is not enough to hold ASH information.
Q7. What is the purpose of running the statspack.snap script during the installation of the Statspack package?
A. It creates the initial baseline.
B. It automates the collection of statistics.
C. It stores the current performance statistics in the Statspack tables.
D. It creates the PERFSTAT user, the Statspack tables, and constraints
Q8. You are working on an online transaction processing (OLTP) system. The middle-tier applications use connection pooling to connect to the database. Presently, you have a single-node database. The company plans to migrate the database to a RAC environment. Before you move to a RAC environment, you want to test the performance of the SQL statements and the peak workload on the new environment. To accomplish the Database Capture for replay, you identified the peak workload period on the existing system and started the Database Capture.
Which client requests to the database can be captured as part of the workload capture? (Choose all that apply.)
A. flashback query
B. distributed transactions
C. logging in and logging out of sessions
D. all DDL statements having bind variables
E. direct path load of data from external files
Q9. View the Exhibit and examine the content. ALLOCATED_SPACE and FREE_SPACE are not matching with the TABLESPACE_SIZE value.
What would you conclude from this?
A. A new temporary file is added to the tablespace.
B. The temporary space was not sufficient for sort operations.
C. The temporary space allocated to large sort operations is not deallocated.
D. TEMP_L is a default temporary tablespace because the numbers show some overhead on this tablespace.
Q10. The users in your online transaction processing (OLTP) environment complain that the query response time has increased considerably. You checked the Program Global Area (PGA)- related information in the AWR report to investigate it further.
View the Exhibit named PGAHIT and note the PGA cache-hit percentage.
View the Exhibit named PGAADV and analyze the content.
If you want to increase the size of PGA, you have sufficient memory available in the system. What would be the correct decision?
A. Double the size of PGA.
B. Increase the size of PGA to 120 MB.
C. Increase the size of PGA to 160 MB or more.
D. Leave the PGA at its current size and investigate other possible causes.