问题:多选题Which three statements are true concerning unplugging a pluggable database (PDB)?()AThe PDB must be open in read only mode.BThe PDB must be dosed.CThe unplugged PDB becomes a non-cdb.DThe unplugged PDB can be plugged into the same multitenant container database (CDB)EThe unplugged PDB can be plugged into another cdb.FThe PDB data files are automatically removed from disk.
Thursday, August 17, 2023
问题:多选题You plan to use the In Database Archiving feature of Oracle Database 12c, and store rows that are inactive for over three months, in Hybrid Columnar Compressed (HCC) format. Which three storage options support the use of HCC?()AASM disk groups with ASM disks consisting of Exadata Grid Disks.BASM disk groups with ASM disks consisting of LUNS on any Storage Area Network arrayCASM disk groups with ASM disks consisting of any zero padded NFS-mounted filesDDatabase files stored in ZFS and accessed using conventional NFS mounts.EDatabase files stored in ZFS and accessed using the Oracle Direct NFS featureFDatabase files stored in any file system and accessed using the Oracle Direct NFS featureGASM disk groups with ASM disks consisting of LUNs on Pillar Axiom Storage arrays
Saturday, April 20, 2024
问题:多选题Which two are true concerning a multitenant container database with three pluggable database?()AAll administration tasks must be done to a specific pluggable database.BThe pluggable databases increase patching time.CThe pluggable databases reduce administration effort.DThe pluggable databases are patched together.EPluggable databases are only used for database consolidation.
问题:多选题In your Database, the TBS PERCENT USED parameter is set to 60 and the TBS PERCENT FREE parameter is set to 20. Which two storage-tiering actions might be automated when using information Lifecycle Management (ILM) to automate data movement?()AThe movement of all segments to a target tablespace with a higher degree of compression, on a different storage tier, when the source tablespace exceeds TBS PERCENT USEDBSetting the target tablespace to read-onlyCThe movement of some segments to a target tablespace with a higher degree of compression, on a different storage tier, when the source tablespace exceeds TBS PERCENT USEDDSetting the target tablespace offlineEThe movement of some blocks to a target tablespace with a lower degree of compression, on a different storage tier, when the source tablespace exceeds TBS PERCENT USED
Monday, April 15, 2024
问题:多选题You notice that the elapsed time for an important database scheduler Job is unacceptably long. The job belongs to a scheduler job class and window. Which two actions would reduce the job's elapsed time?()AIncreasing the priority of the job class to which the job belongsBIncreasing the job's relative priority within the Job class to which it belongsCIncreasing the resource allocation for the consumer group mapped to the scheduler job's job class within the plan mapped to the scheduler windowDMoving the job to an existing higher priority scheduler window with the same schedule and durationEIncreasing the value of the JOB_QUEUE_PROCESSES parameterFIncreasing the priority of the scheduler window to which the job belongs
Friday, March 22, 2024
问题:多选题What are three purposes of the RMAN “FROM” clause?()Ato support PUSH-based active database duplicationBto support synchronization of a standby database with the primary database in a Data environmentCTo support PULL-based active database duplicationDTo support file restores over the network in a Data Guard environmentETo support file recovery over the network in a Data Guard environment
Tuesday, December 19, 2023
问题:多选题What are two benefits of installing Grid Infrastructure software for a stand-alone server before installing and creating an Oracle database?()AEffectively implements role separationBEnables you to take advantage of Oracle Managed Files.CAutomatically registers the database with Oracle Restart.DHelps you to easily upgrade the database from a prior release.EEnables the Installation of Grid Infrastructure files on block or raw devices.
问题:多选题You have altered a non-unique index to be invisible to determine if queries execute within an acceptable response time without using this index. Which two are possible if table updates are performed which affect the invisible index columns?()AThe index remains invisible.BThe index is not updated by the DML statements on the indexed table.CThe index automatically becomes visible in order to have it updated by DML on the table.DThe index becomes unusable but the table is updated by the DML.EThe index is updated by the DML on the table.
Monday, June 26, 2023
问题:多选题You executed this command to create a password file: $ orapwd file = orapworcl entries = 10 ignorecase = N Which two statements are true about the password file?()AIt will permit the use of uppercase passwords for database users who have been granted the SYSOPER role.BIt contains username and passwords of database users who are members of the OSOPER operating system group.CIt contains usernames and passwords of database users who are members of the OSDBA operating system group.DIt will permit the use of lowercase passwords for database users who have granted the SYSDBA role.EIt will not permit the use of mixed case passwords for the database users who have been granted the SYSDBA role.
Monday, January 9, 2023
问题:多选题You notice a performance change in your production Oracle database and you want to know which change has made this performance difference. You generate the Compare Period Automatic Database Diagnostic Monitor (ADDM) report to further investigation. Which three findings would you get from the report?()AIt detects any configuration change that caused a performance difference in both time periods.BIt identifies any workload change that caused a performance difference in both time periods.CIt detects the top wait events causing performance degradation.DIt shows the resource usage for CPU, memory, and I/O in both time periods.EIt shows the difference in the size of memory pools in both time periods.FIt gives information about statistics collection in both time periods.
Monday, August 21, 2023
问题:多选题You upgraded your database from pre-12c to a multitenant container database (CDB) containing pluggable databases (PDBs). Examine the query and its output: Which two tasks must you perform to add users with SYSBACKUP, SYSDG, and SYSKM privilege to the password file?()AAssign the appropriate operating system groups to SYSBACKUP, SYSDG, SYSKM.BGrant SYSBACKUP, SYSDG, and SYSKM privileges to the intended users.CRe-create the password file with SYSBACKUP, SYSDG, and SYSKM privilege and the FORCE argument set to No.DRe-create the password file with SYSBACKUP, SYSDG, and SYSKM privilege, and FORCE arguments set to Yes.ERe-create the password file in the Oracle Database 12c format.
Wednesday, October 18, 2023
问题:多选题Which two statements are true about the RMAN validate database command?()AIt checks the database for intrablock corruptions.BIt can detect corrupt pfiles.CIt can detect corrupt spfiles.DIt checks the database for interblock corruptions.EIt can detect corrupt block change tracking files.
问题:单选题Your multitenant container database (CDB) contains pluggable databases (PDBs), you are connected to the HR_PDB. You execute the following command: SQL > CREATE UNDO TABLESPACE undotb01 DATAFILE ‘u01/oracle/rddb1/undotbs01.dbf’ SIZE 60M AUTOEXTEND ON; What is the result?()A It executes successfully and creates an UNDO tablespace in hr_pdb.B It falls and reports an error because there can be only one undo tablespace in a cdb.C It fails and reports an error because the CONTAINER=ALL clause is not specified in the command.D It fails and reports an error because the CONTAINER=CURRENT clause is not specified in the command.E It executes successfully but neither tablespace nor the data file is created.
Wednesday, November 8, 2023
问题:多选题Identify two correct statements about multitenant architectures.()AMultitenant architecture can be deployed only in a Real Application Clusters (RAC) configuration.BMultiple pluggable databases (PDBs) share certain multitenant container database (CDB) resources.CMultiple CDBs share certain PDB resources.DMultiple non-RAC CDB instances can mount the same PDB as long as they are on the same server.EPatches are always applied at the CDB level.FA PDB can have a private undo tablespace.
问题:多选题Which three statements are true about using flashback database in a multitenant container database(CDB)?()AThe root container can be flashed back without flashing back the pluggable databases (PDBs).BTo enable flashback database, the CDB must be mounted.CIndividual PDBs can be flashed back without flashing back the entire cdb.DThe DB_FLASHBACK RETENTION_TARGET parameter must be set to enable flashback of the cdb.EA CDB can be flashed back specifying the desired target point in time or an SCN, but not a restore point.
问题:单选题You are connected to a pluggable database (PDB) as a common user with DBA privileges. The STATISTICS_LEVEL parameter is PDB_MODIFIABLE. You execute the following: SQL > ALTER SYSTEM SET STATISTICS_LEVEL = ALL SID = ‘*’ SCOPE = SPFILE; Which is true about the result of this command?()A The STATISTICS_LEVEL parameter is set to all whenever this PDB is re-opened.B The STATISTICS_LEVEL parameter is set to ALL whenever any PDB is reopened.C The STATISTICS_LEVEL parameter is set to all whenever the multitenant container database (CDB) is restarted.D Nothing happens; because there is no SPFILE for each PDB, the statement is ignored.
问题:多选题Which three are true about the large pool for an Oracle database instance that supports shared serverconnections?()AAllocates memory for RMAN backup and restore operationsBAllocates memory for shared and private SQL areasCContains a cursor area for storing runtime information about cursorsDContains stack spaceEContains a hash area performing hash joins of tables