Your multitenant container (CDB) containing three pluggable -最需题库

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1Which 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
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2Your 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 USERDAT
A.DBFdata 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_PD
B.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 comman
D.D.Take the USERDATA tablespace offline in ACCOUNTS_PDB
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3You are administering a database stored in Automatic Storage Management (ASM). Youuse RMAN to back up the database and the MD_BACKUP command to back up the ASMmetadata regularly. You lost an ASM disk group DG1 due to hardware failure. In which three ways can you re-create the lost disk group and restore the data、
A.Use the MD_RESTORE command to restore metadata for an existing disk group bypassing the existing disk group name as an input parameter and use RMAN to restore the data.
B.Use the MKDG command to restore the disk group with the same configuration as the backed-up disk group and data on the disk group.
C.Use the MD_RESTORE command to restore the disk group with the changed disk group specification, failure group specification, name, and other attributes and use RMAN torestore the data.
D.Use the MKDG command to restore the disk group with the same configuration as the backed-up disk group name and same set of disks and failure group configuration, and use RMAN to restore the data.
E.Use the MD_RESTORE command to restore both the metadata and data for the failed disk group.
F.Use the MKDG command to add a new disk group DG1 with the same or different specifications for failure group and other attributes and use RMAN to restore the data.
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4Which 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 (LREG) 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 instanc
E.E.The listener.ora configuration file must be located in theORACLE_HOME/network/admin directly.
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5Which two statements are true about the use of the procedures listed in the v$sysaux_occupants.move_procedure column、
A.The procedure may be used for some components to relocate component data to the SYSAUX tablespace from its current tablespace.
B.The procedure may be used for some components to relocate component data from the SYSAUX tablespace to another tablespace.
C.All the components may be moved into SYSAUX tablespace.
D.All the components may be moved from the SYSAUX tablespac
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6Which three are direct benefits of the multiprocess, multithreaded architecture of Oracle Database 12c when it is enabled、
A.Reduced logical I/O
B.Reduced virtual memory utilization
C.Improved parallel Execution performance
D.Improved Serial Execution performance
E.Reduced physical I/O
F.Reduced CPU utilization
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7In order to exploit some new storage tiers that have been provisioned by a storageadministrator, the partitions of a large heap table must be moved to other tablespaces in your Oracle 12c database、Both local and global partitioned B-tree Indexes are defined on the table.A high volume of transactions access the table during the day and a medium volume of transactions access it at night and during weekends.Minimal disrupt ion to availability is required.Which three statements are true about this requirement、
A.The partitions can be moved online to new tablespaces.
B.Global indexes must be rebuilt manually after moving the partitions.
C.The partitions can be compressed in the same tablespaces.
D.The partitions can be compressed in the new tablespaces.
E.Local indexes must be rebuilt manually after moving the partitions.
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8Which three are true about the large pool for an Oracle database instance that supports shared server connections、
A.Allocates memory for RMAN backup and restore operations
B.Allocates memory for shared and private SQL areas
C.Contains a cursor area for storing runtime information about cursors
D.Contains stack space
E.Contains a hash area performing hash joins of tables
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9What 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
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10You notice that the performance of your production 24/7 Oracle database significantlydegraded. 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.
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