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試験番号：1z0-067問題集試験科目：Upgrade Oracle9i/10g/11g OCA to Oracle Database 12c OCP
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試験番号：1z0-034問題集試験科目：Upgrade Oracle9i/10g OCA to Oracle Database 11g OCP
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NO.1 Which two statements are true about scheduling operations in a pluggable database (PDB)?
A. Scheduler jobs for a PDB can be defined only at the container database (CDB) level.
B. A job defined in a PDB runs only if that PDB is open.
C. Scheduler attribute setting is performed only at the CDB level.
D. Scheduler objects created by users can be exported or imported using Data Pump.
E. Scheduler jobs for a PDB can be created only by common users.
Answer: C,D
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NO.2 In which three scenarios is media recovery required?
A. when a tablespace is accidentally dropped from a database
B. when archived redo log files are lost
C. when data files are lost
D. when one of the online redo log members is corrupted
E. when all control files are lost
Answer: A,D,E
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Reference:http://docs.oracle.com/cd/A87860_01/doc/server.817/a76993/recoscen.htm
NO.3 Which parameter must be set to which value to implement automatic PGA memory
management?
A. Set memory_target to zero.
B. Set STATISTICS_LEVEL to BASIC.
C. Set pga_aggregate_target to a nonzero value.
D. Set pga_aggregate_target and sga_target to the same value.
E. Set sgajtarget to zero.
Answer: C
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Reference:http://docs.oracle.com/cd/B28359_01/server.111/b28310/memory004.htm#ADM
IN11233
NO.4 Users report this error message when inserting rows into the orders table:
ERROR atline1:
ORA-01654f:unable to extend index USERS.ORDERS_IND by 8in tablespace INDEXES
You determine that the indexes tablespace is out of space and there is no free space on the
filesystem used by the Oracle database.
Which two must you do to fix this problem without affecting currently executing queries?
A. drop and re-create the index
B. coalesce the orders ind index
C. coalesce the indexes tablespace
D. perform an on line table rebuild using dbns_redefir.ition.
E. rebuild the index online moving it to another tablespace that has enough free space for the index
Answer: A,C
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NO.5 Which three statements are true about Consolidated Database Replay?
A. The workload capture and replay systems must have the same operating system (OS).
B. Multiple workload captures from multiple databases can be replayed simultaneously on all
pluggable databases (PDBs) in a multitenant container database (CDB).
C. A subset of the captured workload can be replayed.
D. The number of captured workloads must be the same as the number of PDBs in a multitenant CDB
.
E. Multiple replay schedules can be defined for a consolidated replay and during replay initialization,
you can select from any of the existing replay schedules.
Answer: B,C,E
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NO.6 Your database is running in archivelog mode. Examine the parameters for your database
instance:
LOG_ARCHIVE_DEST_l ='LOCATION=/disk1/arch MANDATORY' LOG_ARCHIVE_DEST_2
='LOCATION=/disk2/arch' LOG_ARCHIVE_DEST_3 ='LOCATIO=/disk3/arch' LOG_ARCHIVE_DEST_4
='LOCATIONs/disk4/arch' LOG_ARCHIVE_MIN_SUCCEED_DEST=2
While the database is open, you notice that the destination set by the log_archive_dest_1 parameter
is not available. All redo log groups have been used.
What happens at the next log switch?
A. The database instance hangs and the redo log files are not overwritten.
B. The archived redo log files are written to the fast recovery area until the mandatory destination is
made available.
C. The database instance is shutdown immediately.
D. The destination set by the log_archive_destparameter is ignored and the archived redo log files
are created in the next two available locations to guarantee archive log success.
Answer: D
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NO.7 Which statement is true about the loss or damage of a temp file that belongs to the temporary
tablespace of a pluggable database (PDB)?
A. The PDB is closed and the temp file is re-created automatically when the PDB is opened.
B. The PDB is closed and requires media recovery at the PDB level.
C. The PDB does not close and the temp file is re-created automatically whenever the container
database (CDB) is opened.
D. The PDB does not close and starts by using the default temporary tablespace defined for the CD
Answer: A
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NO.8 You notice that the performance of your production 24/7 Oracle 12c database has significantly
degraded. Sometimes you are not able to connect to the instance because it hangs. You do not want
to restart the database instance.
How can you detect the cause of the degraded performance?
A. Enable Memory Access Mode, which reads performance data from SGA.
B. Use emergency monitoring to fetch data directly from SGA for analysis.
C. Run Automatic Database Diagnostic Monitor (ADDM) to fetch information from the latest
Automatic Workload Repository (AWR) snapshots.
D. Use Active Session History (ASH) data and hang analysis in regular performance monitoring,
E. Run ADDM in diagnostic mode.
Answer: C
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Explanation:
* In most cases, ADDM output should be the first place that a DBA looks when notified of a
performance problem.
* Performance degradation of the database occurs when your database was performing optimally in
the past, such as 6 months ago, but has gradually degraded to a point where it becomes noticeable to
the users. The Automatic Workload Repository (AWR) Compare Periods report enables you to
compare database performance between two periods of time.
While an AWR report shows AWR data between two snapshots (or two points in time), the AWR
Compare Periods report shows the difference between two periods (or two AWR reports with a total
of four snapshots). Using the AWR Compare Periods report helps you to identify detailed
performance attributes and configuration settings that differ between two time periods.
Reference: Resolving Performance Degradation Over Time
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