Free Oracle 1Z0-083 Exam Questions

Question 1

Choose the best answer. Examine this configuration: 1. CDB1 is a container database. 2. DEFAULT_SHARING is METADAT 3. APP_ROOT is an application root contained in CDB1. 4. APP_PDB1 is an application PDB contained in APP_ROOT. 5. COMPANYAPP is an application contained in APP_ROOT. 6. EMP is a common table created in APP_ROOT and all its application PDBs, created when version 1.0 of COMPANYAPP was installed. You execute these commands: $ sqlplus sys/ orac1e@localhost:1521/cdb1 as sysdba SQL> ALTER SYSTEM SET DEFAULT_SHARING=DATA; System altered. SQL> ALTER SESSION SET CONTAINER=app_root; Session altered. SQL> ALTER PLUGGABLE DATABASE APPLICATION companyapp BEGIN UPGRADE '1.0' TO '2.0'; pluggable database altered. SQL> ALTER TABLE emp ADD (sal NUMBER NOT NULL) ; Table altered. SQL> ALTER PLUGGABLE DATABASE APPLICATION companyapp END UPGRADE TO '2.0'; Pluggable database altered. SQL> ALTER SESSION SET CONTAINER=app_pdb1; Session altered. SQL> DESC emp; Name Null? Type --------------------------------------------------------------ENO NUMBER ENAME VARCHAR2 (20) SQL> SELECT * FROM emp; ENO ENAME ---------------------------------100 Alan 200 Ben SQL> ALTER PLUGGABLE DATABASE APPLICATION companyapp SYNC; What will be the outcome and why?

A : SAL will be added to APP_PDB1.EMP, with 0 in columns of existing rows.

B : SAL will be added to APP_PDB1.EMP, with NULLs in columns of existing rows

C : It will return an error because the SYNC operation is not allowed when constraints are added to common objects.

D : It will return an error because EMP is not empty in APP_ROOT.

E : It will return an error because EMP.SAL is empty in APP_ROOT.

Answer: D

Question 2

Which two are true about changing the LOCAL_UNDO_ENABLED property to false in a CDB? (Choose two.)

A : After the change, only a common user with the required privilege can create an undo tablespace in CDB&ROOT.

B : Any new PDB and existing PDBs are automatically configured to use the default undo tablespace in CDB$ROOT

C : After the change, only one undo tablespace can exist in CDB$ROOT.

D : After the change, any user with the required privilege can create an undo tablespace in the PDBs.

E : Undo tablespaces existing in PDBs must be dropped before the change.

F : After the change, each existing PDB has to be reopened for the new undo mode to take effect.

Answer: A,B

Question 3

choose two You take your database backups by using the RMAN media management interface (MMI). Which two are true about the use of the RMAN MMI?

A :

Integration with Third-Party Media Managers

B :

Use of SBT (Sun Business Talk) Interface

C :

Channel Allocation

D :

Requires Configuration

E :

Vendor-Specific Modules

Answer: A,D

Question 4

Which two statements are true when row archival management is enabled?

A : The ORA_ARCHIVE_STATE column visibility is controlled by the ROW ARCHIVAL VISIBILITY session parameter.

B : The ORA_ARCHIVE_STATE column is updated manually or by a program that could reference activity tracking columns, to indicate that a row is no longer considered active.

C : The ROW ARCHIVAL VISIBILITY session parameter defaults to active rows only.

D : The ORA_ARCHIVE_STATE column is visible if referenced in the select list of a query.

E : The ORA_ARCHIVE_STATE column is updated automatically by the Oracle Server based on activity tracking columns, to Indicate that a row is no longer considered active. Correct

Answer: B,D

Question 5

Choose three. Which three are true about RMAN archival backups with the RESTORE POINT clause?

A :

They are never considered obsolete by RMAN.

B :

They can optionally be written to a fast recovery area (FRA).

C :

Â All archive logs are retained after an archival backup is taken, until the next archival backup is taken of the same database.

D :

Archive logs are retained if they are necessary to allow the database to be recovered to a consistent state when an archival backup is restored.

E :

The SPFILE is included in the archival backup.

F :

Use of a recovery catalog is always required to support the creation and use of archival backups. G)The ARCHIVAL attribute for a backup overrides the RMAN retention policy.

G :

Answer: A,B,D