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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
最近更新時間：2014-10-23
問題と解答：全177問 1z0-067 試験問題集
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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
最近更新時間：2014-10-23
問題と解答：全148問 1z0-034 受験記対策
100％の返金保証。1年間の無料アップデート。
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NO.1 Automatic Undo Management is enabled for your database. You want a user to retrieve
metadata and historical data for a given transaction or for transactions in a given time interval.
Which three are prerequisites to fulfill this requirement?
A. Minimal supplemental logging must be enabled.
B. The database must be running in archivelog mode.
C. Flashback Data Archive must be created and the flashback archive administer system privilege
must be granted to the user.
D. The flashback any table privilege must be granted to the user.
E. The select any transaction privilege must be granted to the user.
F. Therecycle binparameter must be set to on.
Answer: C,D,E
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NO.2 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
NO.3 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.4 RMAN is connected to the target database prod1 and an auxiliary instance in nomount state.
Examine the command to create a duplicate database:
RMAN> DUPLICATE TARGET DATABASE TO dup1
FROM ACTIVE DATABASE
NOFILENAMECHECK
PASSWORD FILE
SPFILE;
Which two statements are true about the execution of the duplicate command?
A. All archive redo log files are automatically copied to the duplicate database.
B. The duplicate database has the same directory structure as the source database.
C. The duplicate database is created by using the backups created during the execution of
D. the duplicate command.
E. The password file and SPFILE for the duplicate database dup1 are created in their respective
default locations.
F. The duplicate database is created without using RMAN backups and prod: is allowed to remain
open during duplication.
Answer: A,F
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NO.5 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.6 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.7 You issue the command:
SQL> ALTER DATABASE BACKUP CONTROLFILE TO TRACE;
Which statement is true about the command?
A. It creates a copy of the control file and stores it in the location specifiedin the diagnostic_dest
initialization parameter.
B. It creates a file that contains the SQL statement, which is required to re-create the control file.
C. It updates the alert log file with the location and contents of the control file.
D. It creates a binary backup of the control file.
Answer: A
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NO.8 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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