为自己加油

Choose three.

PDB1 and PDB2 are pluggable databases in CDB1.

Examine these commands:

$ export ORACLE_SID=CDB1

$ sqlplus / as sysdba

SQL> STARTUP

.......

Database opened.

SQL> SHOW PDBS

CON_ID

CON_NAME

OPEN MODE

RESTRICTED

--------------------------------------------------------------------

2

PDB$ SEED

READ ONLY

NO

3

PDB1

MOUNTED

4

PDB2

MOUNTED

SQL> ALTER PLUGGABLE DATABASE pdb1 OPEN;

Pluggable database altered.

SQL> ALTER PLUGGABLE DATABASE pdb1 SAVE STATE;

Pluggable database altered.

SQL> ALTER PLUGGABLE DATABASE pdb1 CLOSE;

Pluggable database altered.

SQL> ALTER PLUGGABLE A DATABASE pdb2 OPEN;

Pluggable database altered.

CDB1 is then restarted.

Which three are true?

A.PDB2 will be opened READ WRITE.
B.PDB1 will be opened READ WRITE.
C.PDB1 will be MOUNTED.
D.PDB$SEED will be opened READ ONLY.
E.PDB$SEED will be MOUNTED.
F.PDB2 will be MOUNTED.