06 November, 2020

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Total 96 questions Full Exam Access

Question 1

Which three can be done using Oracle Database Configuration Assistant (DBCA) starting from Oracle Database 19c? (Choose three.)

cloning a remote container database in interactive mode

cloning a remote pluggable database in silent mode

relocating a remote pluggable database in interactive mode

relocating a remote container database in silent mode

cloning a remote container database in silent mode

relocating a remote pluggable database in silent mode

relocating aremote container database in interactive mode

Question 2

Examine this configuration:
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CDB1is an Oracle Database 12c Release 2 database containing pluggable databasesPDB$SEED,PDB1, andPDB2.
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PDB$SEEDis openREAD ONLY
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PDB1is openREAD WRITE
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PDB2isMOUNTED.
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ORACLE_HOMEis/u01/app/oracle/product/18.1.0/dbhome_1.
You execute these commands before upgrading the database to the current release:
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For which databases will fixup scripts be created?

CDB1, PDB$SEED, PDB1, and PDB2

PDB$SEED, PDB1, and PDB2 only

CDB1 and PDB$SEED only

CDB1, PDB1,and PDB2 only

CDB1, PDB$SEED, and PDB1 only

Question 3

Which two are true about the character sets used in an Oracle database? (Choose two.)

Single-byte character sets provide betterperformance than multibyte character sets.

Unicode enables information from any language to be stored using a single character set.

Unicode is the only supported character set for Oracle databases created using Database Configuration Assistant (DBCA).

Single-byte character sets always use 7-bit encoding schemes.

Multibyte character sets allow more efficient space utilization than single byte character sets.

Single-byte character sets always use 8-bit encoding schemes.

Question 4

You are managing this configuration:
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CDB1is a container database.
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PDB1andPDB2are two pluggable databases inCDB1.
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USER1.EMPis a table inPDB1andUSER2.DEPTis a table inPDB2.
CDB1userSYSexecutes these commands after connecting successfully toPDB2:
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Which two are true? (Choose two.)

The inserts on USER1.EMP remain uncommitted when the session connected to PDB2.

The inserts on USER1.EMP were committed when the session inserted a row into USER2.DEPT.

The insert on USER2.DEPT fails because of the active transaction in the parent container.

The insert on USER2.DEPT is a recursive autonomous transaction by the child session and is committed.

The inserts on USER1.EMP were rolled back when the session connected to PDB2.

The insert on USER2.DEPT is uncommitted.

The inserts on USER1.EMP were committed when the session connected to PDB2.

Question 5

Which two are true about creating RMAN backups for an Oracle container database? (Choose two.)

Tablespaces from different PDBs with identical names must be backed up by connecting RMAN separately to each PDB to back up the tablespaces.

The BACKUP DATABASE command will create a pluggable database (PDB) backup when RMAN is connected to a PDB.

SPFILEbackups can be created while connected to an application root PDB.

The BACKUP DATABASE PLUS ARCHIVELOG command will back up archive logs when RMAN is connected to a PDB.

The BACKUP PLUGGABLE DATABASE command can be used to back up CDB$ROOT.

Question 6

Which three are true about Database Point-in-Time Recovery? (Choose three.)

The database must have FLASHBACK DATABASE ON to perform Database Point-in-Time Recovery.

Thedatabase must be in MOUNT state when performing Database Point-in-Time Recovery.

Database Point-in-Time Recovery is performed by the Managed Recovery Process (MRP)

The Database must be in ARCHIVELOG mode.

The target point for the recovery must bespecified as a stime or System Change Number (SCN).

The database must be open RESETLOGS after Database Point-in-Time Recovery.

Question 7

Automatic Shared Memory Management is disabled for one of your database instances.
SomeSQL statements perform poorly due to excessive hard parse activity, thereby degrading performance. What would be your next step?

Run the SQL Access Advisor.

Run the Memory Advisor for the shared pool.

Run the SQL Tunning Advisor.

Run theMemory Advisor for the Program Global Area.

Run the Memory Advisor for the System Global Area.

Question 8

Examine this configuration:
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CDB1is a container database.
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COMMON_USER_PREFIXisC##.
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PDB1is a pluggable database contained inCDB1.
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APP1_ROOTis an application container contained inCDB1.
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APP1_PDB1is an application PDB contained inAPP1_ROOT.
You execute these commands successfully:
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Which two are true? (Choose two.)

APP1_USER1 can be created in PDB1.

APP1_USER1 can be created in CDB1.

APP1_USER1 canhave different privileges in each Application PDB contained in APP1_ROOT.

C##_APP_USER1 can be created in CDB1.

P1_USER1 can be created in CDB1.

C##_USER1 will have the same privileges and roles granted in all PDBs in CDB1.

Question 9

Which three are true In Oracle 19c and later releases?

Tablespaces always remain In read/write mode during transportable tablespace operations.

Simultaneous data pump jobs can be limited at thepluggable database (PDB) level.

Tablespaces never remain In read/write mode during transportable tablespace operations.

An ordinary data pump export of a table with encrypted columns will always encrypt the same columns when imported.

A transportable data pump import can leave a plugged-in tablespace in read-only mode.

A transportable data pump import can leave a plugged-in tablespace In read/write mode.

Question 10

While backing up to an SBT channel, you determine that the read phase of your compressed Recovery Manager (RMAN) incremental level 0 backup is a bottleneck.
FORCE LOGGING is enabled for the database.
Which two could improve read performance? (Choose two.)

Increase the size of tape I/O buffers.

Disable FORCE LOGGING for the database.

Increase the size of the database buffer cache.

Enable asynchronous disk I/O.

Increase the level of RMAN multiplexing.

Question 12

Which three are true about requirements for various FLASHBACK operations? (Choose three.)

FLASHBACK transaction query requires undo to retrieve all versions of a row that existed between two points in time.

FLASHBACK drop requires thatthe RECYCLEBIN parameter be set to ON.

FLASHBACK version query requires that the RECYCLEBIN parameter be set to ON.

FLASHBACK DATA ARCHIVE requires undo to store all versions of all rows of a table being tracked.

FLASHBACK drop requires undo to retrieve all versions of a row that existed between two points in time.

FLASHBACK version query requires undo to retrieve all versions of a row that existed between twopoints in time.

Question 13

A user complains about poor database performance.
You want to verify if the user’s session has waited for certain types of I/O activity. Which view displays all waits waited on by a session at least once?

V$SESSION_EVENT

V$SESSTAT

V$SESSION_WAIT

V$SESSION_WAIT_CLASS

V$SESSION

Question 14

Which two are true about Oracle Optimizer Statistics, their use, and their collection? (Choose two.)

The number of table rows is considered when evaluating the cost of accessing a table using an index.

Index balanced B*Tree height is considered whenevaluating the cost of using an index.

The Statistics Advisor can help recommend the best way to gather statistics.

Statistics collected using DBMS_STATS always yield the best optimizer result.

The Statistics Advisor generates actions for all recommendations.

Question 15

Which three are true about an application seed pluggable database (PDB)? (Choose three.)

It is automatically synchronized with its application root PDB when an application is upgraded.

It cannot be added to an application container after the application container has already been created.

A new application PDB created by cloning an application seed PDB can have an old version of the application installed after cloning completes.

It is automatically synchronized with its application root PDB when an application is installed.

It cannot be dropped from its application container.

A new application PDB created by cloning an application seed PDB canhave an up-to-date version of the application installed after cloning completes.

It is not required in an application container.

Question 16

Which two are true about automatic block repair? (Choose two.)

Automatic block repair can repair blocks with no standby database if DB_BLOCK_CHECKING = TRUE.

Real-Time Query must be enabled on a physical standby database for automatic block repair to be done on that physical standby database.

Real-Time Query must be enabled on a primary database for automatic block repair to be done on any of its physical standby databases.

It is not possible for media corrupt blocks.

Real-Time Query must be enabled on a physical standby database for automatic block repair to be done on its primary database.

Question 17

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

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

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

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

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

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

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

Question 18

For which two requirements can you use the USER_TABLESPACE clause with the CREATE PLUGGABLE DATABASE command? (Choose two.)

to specify a default tablespace in a PDB cloned from another PDB in the same CDB.

to exclude all tablespaces except SYSTEM, SYSAUX, and TEMPwhen plugging in a PDB

to include specific user tablespaces only when relocating a PDB

to specify the list of user tablespaces to include when moving a non-CDB to a PDB

to exclude a temp tablespace when plugging in a PDB

to specify the list oftablespaces to include when creating a PDB from the CDB seed

Question 19

Examine these queries and their output:
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An online RMAN backup of the CDB was taken an hour before Restore Point R1 was created. You want to
recover PDB1 toRestore Point R1. How do you achieve this?

Execute FLASHBACK PLUGGABLE DATABASE PDB1 TO RESTORE POINT R1 by using RMANwhile connected to PDB1.

Execute FLASHBACK PLUGGABLE DATABASE PDB1 TO RESTORE POINT R1 by using SQLwhile connected to PDB1.

Execute FLASHBACK PLUGGABLE DATABASE PDB1 TO RESTORE POINT R1 by using SQLwhile connected to CDB$ROOT.

Execute FLASHBACK PLUGGABLE DATABASE PDB1 TO RESTORE POINT R1 by using RMANwhile connected to CDB$ROOT.

This cannot be done due to the lack of aclean restore point.

Question 20

Which two are true about duplicating pluggable databases (PDBs) with RMAN? (Choose two.)

Two or more PDBs can be duplicated with the same RMAN DUPLICATE command.

All tablespaces belonging to a PDB must be duplicated when duplicating the PDB.

The auxiliary instance is automatically created with ENABLE_PLUGGABLE_DATABASE = TRUE.

A user with SYSDBA or SYSBACKUP must be logged in with RMAN to the PDB to duplicate it.

CDB$ROOT and PDB$SEED are automatically duplicated.

Question 21

Which three are true in Oracle 19c and later releases? (Choose three.)

If the password file location changes, then the new location is used automatically by the Oracle Server.

Schema Only accounts can be granted administrator privileges.

All the Oracle-supplied accounts are Schema Only accounts.

Privilege Analysis is included in Oracle Enterprise Edition and no longer requires Database Vault.

Unified Auditing can be configured to audit only events that are issued indirectly by an audited user.

Unified Auditing can be configured to audit only events that are issued directly by an audited user.

Question 22

You have configured RMAN SBT channels to write backups to media. You then take an RMAN backup by using this command:
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Which three are true? (Choose three.)

The restore point is a label for the system change number (SCN) that will be savedtwo years after the archival backup was taken.

The data file backups in the self-contained archive backup are not considered obsolete for two years regardless of the retention policy.

All archive logs created after this backup are kept for two years.

The SPFILE is included in the self-contaied archival backup.

The control file is included in the self-contained archival backup.

The restore point is a label for the system change number (SCN) before the archival backup was taken.

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Total 96 questions Full Exam Access