Where are they talking？A．At a bus stop.B．At a railway station.C．At an airport.

Your multitenant container database (CDB) contains three pluggable database (PDBs). You find that the control file is damaged. You plan to use RMAN to recover the control file. There are no startup triggers associated with the PDBs.Which three steps should you perform to recover the control file and make the database fully operational？（）

A. Mount the container database (CDB) and restore the control file from the control file auto backup.

B. Recover and open the CDB in NORMAL mode.

C. Mount the CDB and then recover and open the database, with the RESETLOGS option.

D. Open all the pluggable databases.

E. Recover each pluggable database.

F. Start the database instance in the nomount stage and restore the control file from control file auto backup.

Your multitenant container database (CDB) contains a pluggable database, HR_PDB. The default permanent tablespace in HR_PDB is USERDATA. The container database (CDB) is open and you connect RMAN.You want to issue the following RMAN command:RMAN > BACKUP TABLESPACE hr_pdb:userdata;Which task should you perform before issuing the command？（）

A. Place the root container in ARHCHIVELOG mode.

B. Take the user data tablespace offline.

C. Place the root container in the nomount stage.

D. Ensure that HR_PDB is open.

Your multitenant container database (CDB) is running in ARCHIVELOG mode. You connect to the CDB RMAN.Examine the following command and its output:You execute the following command:RMAN > BACKUP DATABASE PLUS ARCHIVELOG;Which data files will be backed up？（）

A. Data files that belong to only the root container

B. Data files that belong to the root container and all the pluggable databases (PDBs)

C. Data files that belong to only the root container and PDB$SEED

D. Data files that belong to the root container and all the PDBs excluding PDB$SEED

You are planning the creation of a new multitenant container database (CDB) and want to store the ROOT and SEED container data files in separate directories.You plan to create the database using SQL statements.Which three techniques can you use to achieve this？（）

A. Use Oracle Managed Files (OMF).

B. Specify the SEED FILE_NAME_CONVERT clause.

C. Specify the PDB_FILE_NAME_CONVERT initialization parameter.

D. Specify the DB_FILE_NAMECONVERT initialization parameter.

E. Specify all files in the CREATE DATABASE statement without using Oracle managed Files (OMF).

You are connected using SQL* Plus to a multitenant container database (CDB) with SYSDBA privilegesand execute the following sequence statements:What is the result of the last SET CONTAINER statement and why is it so？（）

A. It succeeds because the PDB_ADMIN user has the required privileges.

B. It fails because common users are unable to use the SET CONTAINER statement.

C. It fails because local users are unable to use the SET CONTAINER statement.

D. If fails because the SET CONTAINER statement cannot be used with PDB$SEED as the target pluggable database (PDB).

In your multitenant container database (CDB) containing pluggable databases (PDB), users complain about performance degradation.How does real-time Automatic database Diagnostic Monitor (ADDM) check performance degradation and provide solutions？（）

A. It collects data from SGA and compares it with a preserved snapshot.

B. It collects data from SGA, analyzes it, and provides a report.

C. It collects data from SGA and compares it with the latest snapshot.

D. It collects data from both SGA and PGA, analyzes it, and provides a report

In your multitenant container database (CDB) containing pluggable database (PDBs), you granted theCREATE TABLE privilege to the common user C A_ADMIN in root and all PDBs. You execute thefollowing command from the root container:SQL >REVOKE create table FROM C A_ADMIN;What is the result？（）

A. It executes successfully and the CREATE TABLE privilege is revoked from C # # A_ADMIN in root only.

B. It fails and reports an error because the CONTAINER=ALL clause is not used.

C. It excludes successfully and the CREATE TABLE privilege is revoked from C # # A_ADMIN in root and all PDBs.

D. It fails and reports an error because the CONTAINER=CURRENT clause is not used.

E.It executes successfully and the CREATE TABLE privilege is revoked from C # # A_ADMIN in all PDBs.

A. Each pluggable database (PDB) has its own set of background processes.

B. A PDB can have a private temp tablespace.

C. PDBs can share the sysaux tablespace.

D. Log switches occur only at the multitenant container database (CDB) level.

E. Different PDBs can have different default block sizes.

F. PDBs share a common system tablespace.

G. Instance recovery is always performed at the CDB level.

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 online.8. Open all the PDBs with RESETLOGS.9. Open the database with RESETLOGS.10. Execute the command SHUTDOWN ABORT.Which option identifies the correct sequence to recover the SYSAUX tablespace？（）

A.6，5，4，7

B.10，1，2，5，8

C.10，1，2，5，4，9，8

D.10，1，5，8，10

A. All administration tasks must be done to a specific pluggable database.

B. The pluggable databases increase patching time.

C. The pluggable databases reduce administration effort.

D. The pluggable databases are patched together.

E. Pluggable databases are only used for database consolidation.