Which statement is true concerning dropping a pluggable database (PDB)?()A、The PDB must be open in read-only mode.B、The PDB must be in mount state.C、The PDB must be unplugged.D、The PDB data files are always removed from disk.E、A dropped PDB can never be p

题目

Which statement is true concerning dropping a pluggable database (PDB)?()

  • A、The PDB must be open in read-only mode.
  • B、The PDB must be in mount state.
  • C、The PDB must be unplugged.
  • D、The PDB data files are always removed from disk.
  • E、A dropped PDB can never be plugged back into a multitenant container database (CDB).
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相似问题和答案

第1题:

Which three statements are true about the working of system privileges in a multitenant control database(CDB) that has pluggable databases (PDBs)?()

A. System privileges apply only to the PDB in which they are used.

B. Local users cannot use local system privileges on the schema of a common user.

C. The granter of system privileges must possess the set container privilege.

D. Common users connected to a PDB can exercise privileges across other PDBs.

E. System privileges with the with grant option container all clause must be granted to a common user before the common user can grant privileges to other users.


参考答案:A, C, E

第2题:

Which three statements are true concerning the multitenant architecture?()

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.


参考答案:B, D, G

第3题:

Your multitenant container database has three pluggable databases (PDBs): PDB1, PDB2, and PDB3.Which two RMAN commands may be; used to back up only the PDB1 pluggable database?()

A. BACKUP PLUGGABLE DATABASE PDB1 while connected to the root container

B. BACKUP PLUGGABLE DATABASE PDB1 while connected to the PDB1 container

C. BACKUP DATABASE while connected to the PDB1 container

D. BACKUP DATABASE while connected to the boot container

E. BACKUP PLUGGABLE database PDB1 while connected to PDB2


参考答案:A, C

第4题:

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


参考答案:B

第5题:

Which statement is true concerning dropping a pluggable database (PDB)?()

A. The PDB must be open in read-only mode.

B. The PDB must be in mount state.

C. The PDB must be unplugged.

D. The PDB data files are always removed from disk.

E. A dropped PDB can never be plugged back into a multitenant container database (CDB).


参考答案:B

第6题:

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.


参考答案:D

第7题:

You create a new pluggable database, HR_PDB, from the seed database. Which three tablespaces arecreated by default in HR_PDB?()

A.SYSTEM

B.SYSAUX

C.EXAMPLE

D.UNDO

E.TEMP

F.USERS


参考答案:A, B, E

第8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.


参考答案:C

第9题:

Which three statements are true concerning unplugging a pluggable database (PDB)?()

A. The PDB must be open in read only mode.

B. The PDB must be dosed.

C. The unplugged PDB becomes a non-cdb.

D. The unplugged PDB can be plugged into the same multitenant container database (CDB)

E. The unplugged PDB can be plugged into another cdb.

F. The PDB data files are automatically removed from disk.


参考答案:B, D, E

第10题:

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 offline in ACCOUNTS_PDb.


参考答案:D

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