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Which two statements are true about dropping a pluggable database (PDB)? (Choose two.)
You want to consolidate backup information and centrally manage backup and recovery scripts for multiple databases running in your organization.
Which two backup solutions can be used? (Choose two.)
Which three statements are true about the database instance startup after an instance failure? (Choose three.)
A: Occasionally a database closes abnormally with one or more distributed transactions in doubt (neither committed nor rolled back). When you reopen the database and recovery is complete, the RECO background process automatically, immediately, and consistently resolves any in-doubt distributed transactions.
C: Crash and instance recovery involve two distinct operations: rolling forward the current, online datafiles by applying both committed and uncommitted transactions contained in online redo records, and then rolling back changes made in uncommitted transactions to their original state.
D: The SMON background process performs instance recovery, applying online redo automatically. No user intervention is required.
References:
https://docs.oracle.com/cd/B28359_01/server.111/b28318/startup.htm
https://docs.oracle.com/database/121/CNCPT/startup.htm
You created a database with DBCA by using one of the Oracle supplied templates.
Which is the default permanent tablespace for all users except DBSNMP and OUTLN?
Examine the commands executed in the root container of your multitenant container database (CDB) that has multiple pluggable databases (PDBs):
SQL> CREATE USER c##a_admin IDENTIFIED BY orcl123;
SQL> CREATE ROLE c##role1 CONTAINER=ALL;
SQL> GRANT CREATE VIEW TO C##roleI CONTAINER=ALL;
SQL> GRANT c##role1 TO c##a_admin CONTAINER=ALL;
SQL> REVOKE c##role1 FROM c##a_admin;
What is the result of the revoke command?
