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Oracle Database 11g Certified Master Upgrade Sample Questions:

1. The DBA has chosen to manage SGA and PGA memory separately in an OLTP database because of his unique knowledge of the application. Which of these are good starting points to use when configuring the maximum values for SGA and PGA, based on the amount of memory available on the system?

A) 25% SGA, 75% PGA
B) 75% SGA, 25% PGA
C) 20% SGA, 80% PGA
D) 80% SGA, 20% PGA
E) 50% SGA, 50% PGA

2. Which two statements are true regarding the Automatic Diagnostic Repository (ADR) in Oracle Database 11g? (Choose two.)

A) The alert files are stored in XML file format in the TRACE directory of each ADR home.
B) The BACKGROUND_DUMP_DEST initialization parameter overrides the DIAGNOSTIC_DEST initialization parameter for the location of the alert log file.
C) A single ADR can support multiple ADR homes for different database instances.
D) If the environmental variable ORACLE_BASE is set, then DIAGNOSTIC_DEST is set to $ORACLE_BASE.

3. An index called ORD_CUSTNAME_IX has been created on the CUSTNAME column in the ORDERS table using the following command:
SQL>CREATE INDEX ord_custname_ix ON orders(custname);
The ORDERS table is frequently queried using the CUSTNAME column in the WHERE
clause.
You want to check the impact on the performance of the queries if the index is not
available. You do not want the index to be dropped or rebuilt to perform this test.
Which is the most efficient method of performing this task?

A) disabling the index
B) making the index invisible
C) making the index unusable
D) using the MONITORING USAGE clause for the index

4. You have lost all your database control files. To recover them, you are going to use the results of the alter database backup controlfile to trace command. Your datafiles and your online redo logs are all intact. Which of the following is true regarding your recovery?

A) You will use the noresetlogs version of the create controlfile command.
B) You will use the resetlogs version of the create controlfile command.
C) All you need to do is execute the trace file from SQL*Plus and it will perform the recovery for you.
D) You will need to open the database with the resetlogs command.
E) You will use the trace file to create a backup control file, and then you will recover the database with the recover database using backup controlfile command

5. Which statements about the MEMORY_TARGET initialization parameter are true? (Choose all that apply.)

A) MEMORY_TARGET is static and cannot be modified without shutting down the instance
B) MEMORY_TARGET can be increased up to the value of MEMORY_MAX_TARGET, if MEMORY_MAX_TARGET is set to a value greater than zero
C) MEMORY_TARGET represents the total amount of memory that can be allocated to SGA and PGA memory structures.
D) MEMORY_MAX_TARGET defaults to a value of zero if MEMORY_TARGET is not set

Solutions: