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 mounte

题目
多选题
Which three statements are true about using flashback database in a multitenant container database(CDB)?()
A

The root container can be flashed back without flashing back the pluggable databases (PDBs).

B

To enable flashback database, the CDB must be mounted.

C

Individual PDBs can be flashed back without flashing back the entire cdb.

D

The DB_FLASHBACK RETENTION_TARGET parameter must be set to enable flashback of the cdb.

E

A CDB can be flashed back specifying the desired target point in time or an SCN, but not a restore point.


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  • 第1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2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3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4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).

    正确答案:B

  • 第5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

    正确答案:B

  • 第6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.

    正确答案:A,C,E

  • 第7题:

    In your multitenant container database (CDB) with two pluggable database (PDBs). You want to create a new PDB by using SQL Developer. Which statement is true?()

    • A、The CDB must be open.
    • B、The CDB must be in the mount stage.
    • C、The CDB must be in the nomount stage.
    • D、Alt existing PDBs must be closed.

    正确答案:A

  • 第8题:

    多选题
    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.


    正确答案: B,D
    解析: 暂无解析

  • 第9题:

    多选题
    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.


    正确答案: A,F
    解析: 暂无解析

  • 第10题:

    多选题
    Which three statements are true about using flashback database in a multitenant container database(CDB)?()
    A

    The root container can be flashed back without flashing back the pluggable databases (PDBs).

    B

    To enable flashback database, the CDB must be mounted.

    C

    Individual PDBs can be flashed back without flashing back the entire cdb.

    D

    The DB_FLASHBACK RETENTION_TARGET parameter must be set to enable flashback of the cdb.

    E

    A CDB can be flashed back specifying the desired target point in time or an SCN, but not a restore point.


    正确答案: D,E
    解析: 暂无解析

  • 第11题:

    多选题
    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.


    正确答案: B,A
    解析: 暂无解析

  • 第12题:

    多选题
    You want to flash back a test database by five hours.You issue this command:SQL > FLASHBACK DATABASE TO TIMESTAMP (SYSDATE - 5/24);Which two statements are true about this flashback scenario?()
    A

    The database must have multiplexed redo logs for the flashback to succeed.

    B

    The database must be MOUNTED for the flashback to succeed.

    C

    The database must use block change tracking for the flashback to succeed.

    D

    The database must be opened in restricted mode for the flashback to succeed.

    E

    The database must be opened with the RESETLOGS option after the flashback is complete.

    F

    The database must be opened in read-only mode to check if the database has been flashed back to the correct SCN.


    正确答案: A,C
    解析: 暂无解析

  • 第13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14题:

    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.


    参考答案:C, D, F

  • 第15题:

    Which three statements are true about using flashback database in a multitenant container database(CDB)?()

    • A、The root container can be flashed back without flashing back the pluggable databases (PDBs).
    • B、To enable flashback database, the CDB must be mounted.
    • C、Individual PDBs can be flashed back without flashing back the entire cdb.
    • D、The DB_FLASHBACK RETENTION_TARGET parameter must be set to enable flashback of the cdb.
    • E、A CDB can be flashed back specifying the desired target point in time or an SCN, but not a restore point.

    正确答案:B,C,D

  • 第16题:

    You conned using SQL Plus to the root container of a multitenant container database (CDB) with SYSDBA privilege. The CDB has several pluggable databases (PDBs) open in the read/write mode. There are ongoing transactions in both the CDB and PDBs. What happens alter issuing the SHUTDOWN TRANSACTIONAL statement?()

    • A、The shutdown proceeds immediately. The shutdown proceeds as soon as all transactions in the PDBs are either committed or rolledhack.
    • B、The shutdown proceeds as soon as all transactions in the CDB are either committed or rolled back.
    • C、The shutdown proceeds as soon as all transactions in both the CDB and PDBs are either committed or rolled back.
    • D、The statement results in an error because there are open PDBs.

    正确答案:B

  • 第17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.

    正确答案:B,D,E

  • 第18题:

    Flashback is enabled for your multitenant container database (CDB), which contains two pluggable database (PDBs). A local user was accidently dropped from one of the PDBs. You want to flash back the PDB to the time before the local user was dropped. You connect to the CDB and execute the following commands: SQL > SHUTDOWN IMMEDIATE SQL > STARTUP MOUNT SQL > FLASHBACK DATABASE to TIME “TO_DATE (‘08/20/12’ , ‘MM/DD/YY’)”; Examine following commands: 1. ALTER PLUGGABLE DATABASE ALL OPEN; 2. ALTER DATABASE OPEN; 3. ALTER DATABASE OPEN RESETLOGS; Which command or commands should you execute next to allow updates to the flashback back schema?()

    • A、Only 1
    • B、Only 2
    • C、Only 3
    • D、3 and 1
    • E、1 and 2

    正确答案:C

  • 第19题:

    单选题
    You conned using SQL Plus to the root container of a multitenant container database (CDB) with SYSDBA privilege. The CDB has several pluggable databases (PDBs) open in the read/write mode. There are ongoing transactions in both the CDB and PDBs. What happens alter issuing the SHUTDOWN TRANSACTIONAL statement?()
    A

    The shutdown proceeds immediately. The shutdown proceeds as soon as all transactions in the PDBs are either committed or rolledhack.

    B

    The shutdown proceeds as soon as all transactions in the CDB are either committed or rolled back.

    C

    The shutdown proceeds as soon as all transactions in both the CDB and PDBs are either committed or rolled back.

    D

    The statement results in an error because there are open PDBs.


    正确答案: C
    解析: 暂无解析

  • 第20题:

    多选题
    You run a script that completes successfully using SQL*Plus that performs these actions: 1. Creates a multitenant container database (CDB) 2. Plugs in three pluggable databases (PDBs) 3. Shuts down the CDB instance 4. Starts up the CDB instance using STARTUP OPEN READ WRITE Which two statements are true about the outcome after running the script?()
    A

    The seed will be in mount state.

    B

    The seed will be opened read-only.

    C

    The seed will be opened read/write.

    D

    The other PDBs will be in mount state.

    E

    The other PDBs will be opened read-only.

    F

    The PDBs will be opened read/write.


    正确答案: C,E
    解析: 暂无解析

  • 第21题:

    多选题
    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.


    正确答案: D,F
    解析: 暂无解析

  • 第22题:

    单选题
    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).


    正确答案: E
    解析: 暂无解析

  • 第23题:

    单选题
    In your multitenant container database (CDB) with two pluggable database (PDBs). You want to create a new PDB by using SQL Developer. Which statement is true?()
    A

    The CDB must be open.

    B

    The CDB must be in the mount stage.

    C

    The CDB must be in the nomount stage.

    D

    Alt existing PDBs must be closed.


    正确答案: C
    解析: 暂无解析

  • 第24题:

    多选题
    In your multitenant container database (CDB) containing same pluggable databases (PDBs), you execute the following commands in the root container: Which two statements are true?()
    A

    The C # # ROLE1 role is created in the root database and all the PDBs.

    B

    The C # # ROLE1 role is created only in the root database because the container clause is not used.

    C

    Privileges are granted to the C##A_ADMIN user only in the root database.

    D

    Privileges are granted to the C##A_ADMIN user in the root database and all PDBs.

    E

    The statement for granting a role to a user fails because the CONTAINER clause is not used.


    正确答案: E,B
    解析: 暂无解析