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Latest 1Z0-062 Simple Questions Latest Practice Test Questions VCE PDF Dumps
Qustion No. 1
You find this query being used in your Oracle 12c database:
Which method a used by the optimizer to limit the rows being returned?
A. A filter is added to the table query dynamically using ROWNUM to limit the rows to 20 percent of the total rows
B. All the rows are returned to the client or middle tier but only the first 20 percent are returned to the screen or the application.
C. A view is created during execution and a filter on the view limits the rows to 20 percent of the total rows.
D. A TOP-N query is created to limit the rows to 20 percent of the total rows
Answer: C
Qustion No. 2
Which task would you recommend before using the Database Upgrade Assistant (DBUA) to upgrade a single-instance Oracle 11g R2 database to Oracle Database 12c?
A. shutting down the database instance that is being upgraded
B. executing the catctl.pl script to run the upgrade processes in parallel
C. running the Pre-Upgrade Information Tool
D. copying the listener.ora file to the new ORACLE_HOME
Answer: C
Reference: http://docs.oracle.com/cd/E11882_01/server.112/e23633/upgrad...
Qustion No. 3
Which three statements are true about using flashback database in a multitenant container database (CDB)?
A. The root container can be flashed back without flashing back the pluggable databases (PDBs).
B. To enable flashback database, the CDB must be mounted.
C. Individual PDBs can be flashed back without flashing back the entire CDB.
D. The DB_FLASHBACK RETENTION_TARGET parameter must be set to enable flashback of the CDB.
E. A CDB can be flashed back specifying the desired target point in time or an SCN, but not a restore point.
Answer: B,D,E
Qustion No. 4
Which three statements are true about a job chain?
A. It can contain a nested chain of jobs.
B. It can be used to implement dependency-based scheduling.
C. It cannot invoke the same program or nested chain in multiple steps in the chain.
D. It cannot have more than one dependency.
E. It can be executed using event-based or time-based schedules.
Answer: A,B,E
Reference: http://docs.oracle.com/cd/B28359_01/server.111/b28310/schedu...
Qustion No. 5
Examine the memory-related parameters set in the SPFILE of an Oracle database:
memory_max_target—6G memory_target=5G pga_aggregate_target=500M sga_max_size=0 sga_target=0
Which statement is true?
A. Only SGA components are sized automatically-
B. Memory is dynamically re-allocated between the SGA and PGA as needed.
C. The size of the PGA cannot grow automatically beyond 500 MB.
D. The value of the MEMORY_TARGET parameter cannot be changed dynamically.
Answer: C
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