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試験番号：1Z0-457問題集試験科目：Oracle Enterprise Manager 12c Essentials Beta Exam
最近更新時間：2014-06-08
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NO.1 Which Oracle Database component is audited by default if the unified Auditing option is
enabled?
A. Oracle Data Pump
B. Oracle Recovery Manager (RMAN)
C. Oracle Label Security
D. Oracle Database Vault
E. Oracle Real Application Security
Answer: E
Oracle vue 1Z0-060 1Z0-060勉強法 1Z0-060
Explanation:
Type ofUnifiedauditing:
Standard
Fine Grained Audit
XS
Database Vault(not D)
Label Security(not C)
RMAN AUDIT(not B)
Data Pump(not A)
Note:
*Oracle 12c introduces Unified Auditing, which consolidates database audit records
including :-
DDL, DML, DCL
Fine Grained Auditing (DBMS_FGA)
Oracle Database Real Application Security
Oracle Recovery Manager
Oracle Database Vault
Oracle Label Security
Oracle Data Mining
Oracle Data Pump
Oracle SQL*Loader Direct Load
NO.2 What are three purposes of the RMAN "FROM" clause?
A. to support PUSH-based active database duplication
B. to support synchronization of a standby database with the primary database in a Data
environment
C. To support PULL-based active database duplication
D. To support file restores over the network in a Data Guard environment
E. To support file recovery over the network in a Data Guard environment
Answer: B,C,E
Oracle会場 1Z0-060 1Z0-060クラムメディア 1Z0-060方法 1Z0-060費用
Explanation:
E:
*With a control file autobackup, RMAN can recover the database even if the current
control file, recovery catalog, and server parameter file are inaccessible.
*RMAN uses a recovery catalog to track filenames for all database files in a Data Guard
environment. A recovery catalog is a database schema used by RMAN to store metadata
about one or more Oracle databases. The catalog also records where the online redo logs,
standby redo logs, tempfiles, archived redo logs, backup sets, and image copies are
created.
NO.3 You notice that the performance of your production 24 /7 Oracle database 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 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
Oracle過去問 1Z0-060独学 1Z0-060勉強法 1Z0-060
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.4 Which statement is true about Oracle Net Listener?
A. It acts as the listening endpoint for the Oracle database instance for all local and non-local user
connections.
B. A single listener can service only one database instance and multiple remote client connections.
C. Service registration with the listener is performed by the process monitor (PMON) process of
each database instance.
D. The listener.ora configuration file must be configured with one or more listening protocol
addresses to allow remote users to connect to a database instance.
E. The listener.ora configuration file must be located in the ORACLE_HOME/network/admin directly.
Answer: C
Oracle過去問 1Z0-060 1Z0-060日記
Explanation:
Supported services, that is, the services to which the listener forwards client
requests, can be configured in the listener.ora file or this information can be dynamically
registered with the listener. This dynamic registration feature is called service registration.
The registration is performed by the PMON process-an instance background process-of
each database instance that has the necessary configuration in the database initialization
parameter file. Dynamic service registration does not require any configuration in the
listener.ora file.
Incorrect:
Not B:Service registration reduces the need for the SID_LIST_listener_name parameter
setting, which specifies information about the databases served by the listener, in the
listener.ora file.
Note:
*Oracle Net Listener is a separate process that runs on the database server computer. It
receives incoming client connection requests and manages the traffic of these requests to
the database server.
*A remote listener is a listener residing on one computer that redirects connections to a
database instance on another computer. Remote listeners are typically used in an Oracle
Real Application Clusters (Oracle RAC) environment. You can configure registration to
remote listeners, such as in the case of Oracle RAC, for dedicated server or shared server
environments.
NO.5 Open the database with RESETLOGS.
NO.6 Your multitenant container (CDB) containing three pluggable databases (PDBs) is running in
ARCHIVELOG mode. You find that the SYSAUX tablespace is corrupted in the root container.
The steps to recover the tablespace are as follows:
1.Mount the CDB.
2.Close all the PDBs.
3.Open the database.
4.Apply the archive redo logs.
5.Restore the data file.
6.Take the SYSAUX tablespace offline.
7.Place the SYSAUX tablespace offline.
8.Open all the PDBs with RESETLOGS.
NO.7 Your multitenant container database, CDB1, is running in ARCHIVELOG mode and has two
pluggable databases, HR_PDB and ACCOUNTS_PDB. An RMAN backup exists for the database.
You issue the command to open ACCOUNTS_PDB and find that the USERDATA.DBF data file for the
default permanent tablespace USERDATA belonging to ACCOUNTS_PDB is corrupted.
What should you do before executing the commands to restore and recover the data file in
ACCOUNTS_PDB?
A. Place CDB1 in the mount stage and then the USERDATA tablespace offline in ACCOUNTS_PDB.
B. Place CDB1 in the mount stage and issue the ALTER PLUGGABLE DATABASE accounts_pdb CLOSE
IMMEDIATE command.
C. Issue the ALTER PLUGGABLE DATABASE accounts_pdb RESTRICTED command.
D. Take the USERDATA tablespace offlineinACCOUNTS_PDB.
Answer: D
Oracleスクール 1Z0-060 1Z0-060
Explanation:
*You can take an online tablespace offline so that it is temporarily unavailable for general use. The
rest of the database remains open and available for users to access data. Conversely, you can bring
an offline tablespace online to make the schema objects within the tablespace available to database
users. The database must be open to alter the availability of a tablespace.
NO.8 Your multitenant container (CDB) contains two pluggable databases(PDB), HR_PDB and
ACCOUNTS_PDB, both of which use the CDB tablespace. The temp file is called temp01.tmp.
A user issues a query on a table on one of the PDBs and receives the following error:
ERROR at line 1:
ORA-01565: error in identifying file '/u01 /app/oracle/oradata/CDB1 /temp01.tmp'
ORA-27037: unable to obtain file status
Identify two ways to rectify the error.
A. Add a new temp file to the temporary tablespace and drop the temp file that that produced the
error.
B. Shut down the database instance, restore the temp01.tmp file from the backup, and then restart
the database.
C. Take the temporary tablespace offline, recover the missing temp file by applying redo logs, and
then bring the temporary tablespace online.
D. Shutdown the database instance, restore and recover the temp file from the backup, and then
open the database with RESETLOGS.
E. Shut down the database instance and then restart the CDB and PDBs.
Answer: C,E
Oracle vue 1Z0-060会場 1Z0-060学習 1Z0-060認定試験 1Z0-060攻略
Explanation:
* Because temp files cannot be backed up and because no redo is ever generated for them, RMAN
never restores or recovers temp files. RMAN does track the names of temp files, but only so that it
can automatically re-create them when needed.
*If you use RMAN in a Data Guard environment, then RMAN transparently converts primary control
files to standby control files and vice versa. RMAN automatically updates file names for data files,
online redo logs, standby redo logs, and temp files when you issue RESTORE and RECOVER.
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