1z0-083: Oracle Database Administration II

Question #: 81
Topic #: 1
Which four are true about RMAN backup sets? (Choose four.)

A. A backup piece can belong to only one backup set.
B. A data file can be split into multiple sections stored in different backup sets.
C. A data file can be split into multiple sections stored in different backup pieces in the same backup set.
D. Blocks from multiple data files can be contained in one backup piece.
E. A backup set can contain only one backup piece.
F. A backup set must be written to media.
G. A backup set must be written to disk.
H. Blocks from multiple data files can be contained in one backup set.

Selected Answer: ACDH

Question #: 82
Topic #: 1
Which two are true about creating RMAN backups for an Oracle container database? (Choose two.)

A. Tablespaces from different PDBs with identical names must be backed up by connecting RMAN separately to each PDB to back up the tablespaces.
B. The BACKUP DATABASE command will create a pluggable database (PDB) backup when RMAN is connected to a PDB.
C. SPFILE backups can be created while connected to an application root PDB.
D. The BACKUP DATABASE PLUS ARCHIVELOG command will back up archive logs when RMAN is connected to a PDB.
E. The BACKUP PLUGGABLE DATABASE command can be used to back up CDB$ROOT.

Selected Answer: BE

Question #: 83
Topic #: 1
Which three can be done using Oracle Database Configuration Assistant (DBCA) starting from Oracle Database 19c? (Choose three.)

A. cloning a remote container database in interactive mode
B. cloning a remote pluggable database in silent mode
C. relocating a remote pluggable database in interactive mode
D. relocating a remote container database in silent mode
E. cloning a remote container database in silent mode
F. relocating a remote pluggable database in silent mode
G. relocating a remote container database in interactive mode

Selected Answer: BEF

Question #: 84
Topic #: 1
Examine these queries and their output:

An online RMAN backup of the CDB was taken an hour before Restore Point R1 was created.
You want to recover PDB1 to Restore Point R1.
How do you achieve this?

A. Execute FLASHBACK PLUGGABLE DATABASE PDB1 TO RESTORE POINT R1 by using RMAN while connected to PDB1.
B. Execute FLASHBACK PLUGGABLE DATABASE PDB1 TO RESTORE POINT R1 by using SQL while connected to PDB1.
C. Execute FLASHBACK PLUGGABLE DATABASE PDB1 TO RESTORE POINT R1 by using SQL while connected to CDB$ROOT.
D. Execute FLASHBACK PLUGGABLE DATABASE PDB1 TO RESTORE POINT R1 by using RMAN while connected to CDB$ROOT.
E. This cannot be done due to the lack of a clean restore point.

Selected Answer: D

Question #: 85
Topic #: 1
Which two are true about diagnosing Oracle Database failure situations using Data Recovery Advisor? (Choose two.)

A. Using the Data Recovery Advisor LIST FAILURE command always requires that the database for which failures are to be listed is in MOUNT state.
B. A failure can be closed only when it has been repaired.
C. Data Recovery Advisor can be used if a database is closed.
D. The Data Recovery Advisor CHANGE FAILURE command can be used only to change failure priorities.
E. Data Recovery Advisor can proactively check for failures.

Selected Answer: CE

Question #: 86
Topic #: 1
Which two are true about an Oracle gold image-based installation in Oracle 18c and later releases? (Choose two.)

A. It can be used for both Oracle Database and Oracle Grid Infrastructure installation.
B. It can only install and configure Oracle Database software. The database has to be created separately.
C. It does not require the setup wizard.
D. It uses a single RPM that automatically extracts and installs the Oracle Database software.
E. It can be used to install and upgrade Oracle Database for single-instance and cluster configurations.

Selected Answer: AE

Question #: 87
Topic #: 1
Which two are true about RMAN duplexed backup sets? (Choose two.)

A. They can be written only to disk.
B. They must be written to media.
C. They can be created by using the RMAN CONFIGURE command to specify duplexing before taking a backup.
D. They can be created only by using the COPIES option of a BACKUP command.
E. They can be written to media.

Selected Answer: CE

Question #: 88
Topic #: 1
Which should be tuned first when doing a performance tuning exercise for an Oracle Database environment?

A. SQL statements
B. log writer performance
C. general operating system health
D. database writer performance
E. database instance memory management and sizes

Selected Answer: A

Question #: 89
Topic #: 1
Which three are true in Oracle 19c and later releases? (Choose three.)

A. Tablespaces never remain in read/write mode during transportable tablespace operations.
B. A transportable data pump import can leave a plugged-in tablespace in read-only mode.
C. A transportable data pump import can leave a plugged-in tablespace in read/write mode.
D. Simultaneous data pump jobs can be limited at the pluggable database (PDB) level.
E. Tablespaces always remain in read/write mode during transportable tablespace operations.
F. An ordinary data pump export of a table with encrypted columns will always encrypt the same columns when imported.

Selected Answer: ABD

Question #: 90
Topic #: 1
Which two are true about the automatic execution of operating system scripts when performing silent mode installation starting from Oracle Database 19c?
(Choose two.)

A. The response file can specify the root or sudo password.
B. The installer will prompt for the root or sudo password.
C. Silent install always runs operating scripts automatically.
D. The response file must contain the root or sudo password.
E. The response file can specify the path of the sudo program.

Selected Answer: BE

Question #: 91
Topic #: 1
Which three capabilities require the use of the RMAN recovery catalog? (Choose three.)

A. using the KEEP FOREVER clause with the BACKUP command
B. using RMAN stored scripts
C. using the REPORT SCHEMA command to list a database’s current data files and tablespaces
D. creating customized reports about a single database’s backups
E. creating encrypted backups
F. using the REPORT SCHEMA command to list a database’s data files and tablespaces at times in the past

Selected Answer: ADF

Question #: 92
Topic #: 1
Which three are true about the tools for diagnosing Oracle Database failure situations? (Choose three.)

A. The ADR command-line utility (ADRCI) can package incident information to send to Oracle Support.
B. The Automatic Diagnostic Repository (ADR) has a separate home directory for each instance of each Oracle product that is installed and uses it.
C. Flashback commands help with repairing physical errors.
D. RMAN can always repair corrupt blocks.
E. The ADR can store metadata in an Oracle Database repository.
F. The Data Recovery Advisor uses the ADR.

Selected Answer: ABF

Question #: 93
Topic #: 1
The HR_ROOT application container must support the execution of a query on a table shared by application local PDBs PDB1 and PDB2, and remote PDB PDB3.
Which three are true? (Choose three.)

A. A proxy PDB must exist in the application root in the remote CDB.
B. A database link must exist in the local CDB root referring to the remote CDB.
C. PDB3’s application root replica must exist in the local CDB.
D. A database link must exist in the remote CDB referring to the local CDB.
E. The HR_ROOT replica must exist in the remote CDB.
F. A proxy PDB must exist in the application root in the local CDB.

Selected Answer: BEF

Question #: 94
Topic #: 1
Which two are true about poorly performing SQL statements and their tuning in Oracle database instances? (Choose two.)

A. SQL statements performing many physical I/Os can always have their performance improved by creating indexes.
B. SQL statements doing only logical reads never require tuning because they do no physical I/O.
C. The solution that best optimizes one SQL statement can degrade the performance of others.
D. SQL statements doing joins always do more physical I/O than single table queries.
E. Poorly performing SQL statements can be tuned automatically by the Oracle server.

Selected Answer: CE

Question #: 95
Topic #: 1
Which two are true about Rapid Home Provisioning of Oracle software? (Choose two.)

A. It can be used for applications and middleware.
B. It can be used only for Oracle Grid Infrastructure, excluding Oracle Restart.
C. It can be used only for Oracle Grid Infrastructure, including Oracle Restart.
D. It can be used for both Oracle Database and Oracle Grid Infrastructure, including Oracle Restart.
E. It can be used for both Oracle Database and Oracle Grid Infrastructure, excluding Oracle Restart.

Selected Answer: AD

Question #: 96
Topic #: 1
Your database is in ARCHIVELOG mode and you plan to use Flashback Database.
Which two features or parameters manage space availability in the fast recovery area? (Choose two.)

A. the archived log deletion policy
B. the backup optimization policy
C. the backup retention policy
D. using guaranteed UNDO retention
E. the DB_CREATE_ONLINE_LOG_DEST_n parameter setting
F. the DB_RECOVERY_FILE_DEST parameter setting

Selected Answer: AC

Question #: 97
Topic #: 1
Which two are true about Oracle Database Configuration Assistant (DBCA)? (Choose two.)

A. It can be launched from both the command line and the Universal Installer (OUI) interfaces.
B. It can be used to change the character set of an existing database.
C. It can be used to convert a non-container database to a container database.
D. It can be used to create container databases and non-container databases.
E. It can only be launched from the command line interface.

Selected Answer: AD

Question #: 98
Topic #: 1
Which three are performed by Oracle Automatic Storage Management (ASM) instances? (Choose three.)

A. mounting disk groups
B. managing Allocation Units (AUs) for disk group content
C. managing extent allocation for Oracle database segments
D. acting as an I/O server to write data file blocks to ASM disks on behalf of Database Writer processes (DBWn)
E. managing space allocation for Oracle ASM files
F. acting as an I/O server to read data file blocks from ASM disks on behalf of database server processes

Selected Answer: ABE

Question #: 99
Topic #: 1
Your CDB has two regular PDBs as well as one application container with two application PDBs and an application seed.
No changes have been made to the standard PDB$SEED.
How many default temporary tablespaces can be assigned in the CDB?

A. six
B. seven
C. five
D. eight
E. three

Selected Answer: D

Question #: 100
Topic #: 1
Application PDBs, SALES_APP1 and SALES_APP2, must be created and they must access common tables of the SALES_APP application.
Examine these steps:
1. Install the SALES_APP application, including the common tables, in the application root.
2. Install the SALES_APP application in the application root and the common tables in both the CDB root and the application root.
3. Create an application seed.
4. Install the SALES_APP application in the application seed.
5. Create the SALES_APP1 and SALES_APP2 application PDBs.
6. Sync the SALES_APP1 and SALES_APP2 application PDBs with the application root.
7. Sync the SALES_APP1 and SALES_APP2 application PDBs with the application seed.
8. Sync the application seed with the application root.
Which are the minimum required steps in the correct sequence?

A. 3, 4, 1, 6, 8
B. 2, 5, 6
C. 1, 5, 6
D. 1, 3, 5, 6, 7
E. 1, 3, 5, 7

Selected Answer: C

Question #: 101
Topic #: 1
Which two are prerequisites for using FLASHBACK TABLE? (Choose two.)

A. A table’s constraints must be disabled before issuing the flashback.
B. The FLASHBACK ANY TABLE system privilege or the FLASHBACK object privilege must be granted to the user performing the flashback.
C. A table’s indexes must be set to unusable before issuing the flashback.
D. Row Movement must be enabled on the table being flashed back.
E. The FLASHBACK ANY TABLE system privilege or the FLASHBACK object privilege must be granted to the table owner.

Selected Answer: BD

Question #: 102
Topic #: 1
Which two are true about RMAN Multisection backups when a very large data file is divided into four sections? (Choose two.)

A. Each of the file sections must be processed serially.
B. The four sections can be created serially.
C. The four sections must be image copies.
D. The four sections can be created in parallel.
E. The four sections must be contained in backup sets.

Selected Answer: BD

Question #: 103
Topic #: 1
Which three are true about the Oracle Optimizer? (Choose three.)

A. It obeys all hints.
B. It considers the filters in WHERE clauses when generating execution plans for SQL statements.
C. It can re-optimize execution plans after previous executions detect suboptimal plans.
D. It considers object statistics when generating execution plans for SQL statements.
E. It updates stale object statistics in the Data Dictionary.
F. It can only use SQL Plan Directives tied to the SQL statement for which a plan is being generated.

Selected Answer: BCD

Question #: 104
Topic #: 1
RMAN has just been connected to a target database and the recovery catalog database.
In which two cases would an automatic full resynchronization occur between this target database’s control file and the RMAN recovery catalog? (Choose two.)

A. when control file metadata for archive log backups or image copies has been overwritten in the target database’s control file due to being older than CONTROL_FILE_RECORD_KEEP_TIME
B. when control file metadata for data file backups or image copies has been overwritten in the target database’s control file due to being older than CONTROL_FILE_RECORD_KEEP_TIME
C. when a new tablespace is added to a registered target database
D. when a backup of the current control file is created
E. when the target is first registered

Selected Answer: DE

Question #: 105
Topic #: 1
You plan to perform cross-platform PDB transport using XTTS.
Which two are true? (Choose two.)

A. A backup of the PDB must exist, taken using the BACKUP command with the TO PLATFORM clause.
B. The source PDB must be in MOUNT state.
C. The source PDB must not be an application root.
D. The source PDB can be in MOUNT or OPEN state.
E. The source and target platforms must have the same endianness.
F. Automatic conversion of endianness occurs.

Selected Answer: BE

Question #: 106
Topic #: 1
Which three true about recovering tables using RMAN? (Choose three.)

A. RMAN can recover tables in the SYSAUX tablespace.
B. RMAN can recover tables owned by the SYS user.
C. RMAN can recover tables in the SYSTEM tablespace.
D. RMAN always uses an auxiliary instance.
E. RMAN can recover tables in a standby database.
F. RMAN can recover a table after a DDL operation has altered the table structure.
G. RMAN can recover tables owed by the SYSTEM user.

Selected Answer: DFG

Question #: 107
Topic #: 1
Which operating system group is NOT needed to perform an Oracle Database installation?

A. OSASM
B. OSKMDBA
C. OSDBA
D. OSOPER
E. OSRACDBA

Selected Answer: A

Question #: 108
Topic #: 1
You want to transport the UNIVERSITY tablespace from one database to another.
The UNIVERSITY tablespace is currently open read/write.
The source and destination platforms have the same endian format.
Examine this list of steps:
1. Make the UNIVERSITY tablespace read-only on the source system.
2. Export the UNIVERSITY tablespace metadata using EXPDP.
3. Create a cross-platform backup set from the UNIVERSITY tablespace on the source system, using an RMAN command that includes the DATAPUMP clause.
4. Copy the cross-platform backup sets to the destination system.
5. Copy the Data Pump dump set from the source to the destination system.
6. Restore the cross-platform backup set on the destination system using an RMAN command that includes the DATAPUMP clause.
7. Import the UNIVERSITY tablespace metadata using IMPDP.
8. Make the UNIVERSITY tablespace read/write on the destination system.
Which are the minimum number of steps required, in the correct order, to transport the UNIVERSITY tablespace?

A. 1, 3, 4, 6, 8
B. 3, 4, 6
C. 1, 2, 3, 4, 5, 6, 7, 8
D. 2, 3, 4, 5, 6, 7

Selected Answer: B

Question #: 109
Topic #: 1
Examine this configuration:
1. CDB1 is an Oracle Database 12c Release 2 container database (CDB).
2. PDB1 and PDB2 are two pluggable databases (PDBs) in CDB1.
After successfully performing all the preupgrade tasks, you execute these commands from the Oracle Database 18c environment:

What is the outcome?

A. It fails because PDB$SEED is in MIGRATE state.
B. Only CDB$ROOT, PDB$SEED, and PDB2 are upgraded.
C. Only CDB$ROOT, PDB$SEED, and PDB1 are upgraded.
D. CDB$ROOT, PDB$SEED, PDB1, and PDB2 are upgraded.
E. Only CDB$ROOT and PDB$SEED are upgraded.
F. It fails because PDB2 is not in UPGRADE state.

Selected Answer: C

Question #: 110
Topic #: 1
Which three are true about a whole database backup? (Choose three.)

A. It can consist of either backup sets or image copies.
B. It is the only possible backup type for a database in NOARCHIVELOG mode.
C. It can be consistent.
D. It can be created only by using RMAN.
E. It can be inconsistent.
F. It always includes all data files, the current control file, the server parameter file, and archived redo logs.

Selected Answer: ACE

Question #: 111
Topic #: 1
Which two are true about reclaiming space used by Flashback logs in Oracle Database 19c and later releases? (Choose two.)

A. Space is always reclaimed automatically when the retention period for Flashback logs is lowered.
B. Space might be reclaimed proactively before space pressure occurs.
C. Space might be reclaimed automatically when the retention period for Flashback logs is lowered.
D. Space is only reclaimed when there is space pressure in the Fast Recovery Area. (FRA)
E. Space is always reclaimed proactively before space pressure occurs.

Selected Answer: BC

Question #: 112
Topic #: 1
Which three are true about SGA memory management in a multitenant database? (Choose three.)

A. Setting DB_CACHE_SIZE for a PDB guarantees a minimum amount of Database Buffer Cache memory for that PDB.
B. The SHARED_POOL_SIZE setting for a PDB can be up to 80% of the SHARED_POOL_SIZE setting of the root container.
C. Setting SHARED_POOL_SIZE for a PDB guarantees a minimum amount of Shared Pool memory for that PDB.
D. The SGA_TARGET setting for a PDB cannot exceed 50% of the SGA_TARGET value of the root container.
E. Setting SGA_TARGET for a PDB guarantees a minimum amount of SGA memory for that PDB.
F. SGA_MIN_SIZE cannot be set for a PDB.

Selected Answer: ACE

Question #: 113
Topic #: 1
Which three actions will add a resource to an Oracle Restart configuration? (Choose three.)

A. creating an Oracle Database service by modifying the SERVICE_NAMES parameter
B. creating a disk group using the CREATE DISKGROUP SQL statement
C. creating a database using the CREATE DATABASE SQL statement
D. creating a database service using DBMS_SERVICE.CREATE_SERVICE
E. creating a database service using Oracle Database Configuration Assistant (DBCA)
F. creating an Oracle Automatic Storage Management (ASM) instance with ASM Configuration Assistant (ASMCA)

Selected Answer: BEF

Question #: 114
Topic #: 1
Which three are true about creating container databases (CDBs) and pluggable databases (PDBs) in Oracle 19c and later releases? (Choose three.)

A. A PDB snapshot can be a sparse copy of a source PDB.
B. A PDB snapshot depends on an existing storage snapshot of the source PDB.
C. A CDB can be duplicated using Recovery Manager (RMAN) with no configuration required before starting the duplication.
D. A CDB can be duplicated using the Database Configuration Assistant (DBCA) in silent mode with no configuration required before starting the duplication.
E. A PDB snapshot can be a full copy of a source PDB.
F. A snapshot copy PDB can be a full copy of a source PDB.
G. A snapshot copy PDB does not depend on an existing storage snapshot of the source PDB.

Selected Answer: ADE

Question #: 115
Topic #: 1
Which two are true about Oracle Grid Infrastructure for a Standalone Server? (Choose two.)

A. It supports volume management, file system, and automatic restart capabilities.
B. It must be installed before the Oracle database software is installed.
C. The CSS daemon runs from the Grid Infrastructure home.
D. It can manage database resources on the server where it is installed or on a different server.
E. It requires Oracle Automatic Storage Management (ASM) components to be installed separately.

Selected Answer: AC

Question #: 116
Topic #: 1
Which two are true about an RPM-based Oracle Database installation? (Choose two.)

A. It uses a service configuration script to create a single-instance database as part of the installation.
B. From Oracle Database 18c, a single RPM can be used to install only Oracle Database Server for a single instance.
C. It performs a software-only Oracle Database installation.
D. It includes the Oracle Preinstallation RPM.
E. It requires an Unbreakable Linux Network (ULN) subscription.

Selected Answer: BC

Question #: 117
Topic #: 1
HR_ROOT is an application container with the HR_APP application installed.
No application PDBs and no application seed have yet been created in HR_ROOT.
An application PDB, PDB1, must be created so that the HR_APP application’s common objects are accessible to it.
Which two methods can be used? (Choose two.)

A. Create an application seed, and install HR_APP in it.
B. Create the PDB1 application PDB and install HR_APP in it.
C. Create an application seed, synchronize it with HR_ROOT, and then create the PDB1 application PDB.
D. Create the PBD1 application PDB and synchronize it with HR_ROOT.
E. Create the PBD1 application PDB and synchronize it with PDB$SEED.

Selected Answer: CD

Question #: 118
Topic #: 1
Which three are true about Rapid Home Provisioning of Oracle software? (Choose three.)

A. It can be used only on nodes with Oracle Grid Infrastructure installed.
B. It can be used to patch existing Oracle software installations.
C. It can be used to create templates of Oracle homes as gold images of only Oracle databases.
D. It can be used to deploy new homes without disrupting active databases.
E. It can be used to create a single-instance Oracle Database in an already-installed Oracle home.
F. It can be used to upgrade only single-instance databases running on Oracle Restart.

Selected Answer: BDE

Question #: 119
Topic #: 1
In performance management, which two factors might reduce the ability of an application to scale to a large number of users? (Choose two.)

A. poorly written SQL
B. the number of tablespaces containing tables updated by a transaction
C. poorly trained users who do not commit transactions
D. the number of data files containing extents belonging to tables updated by a transaction
E. issuing multiple savepoints during a transaction

Selected Answer: AC

Question #: 120
Topic #: 1
You issued this command:
RMAN> BACKUP RECOVERY AREA FORCE;
Which three are true? (Choose three.)

A. All files in the current FRA that have been backed up already, are backed up.
B. All Oracle recovery files normally written to the FRA and which have been backed up already to the current FRA, are backed up.
C. All Oracle recovery files normally written to the FRA and which have been backed up already to in any previous FRA, are backed up.
D. All Oracle recovery files normally written to the FRA and which have not yet been backed up, are backed up.
E. All files in any previous FRA that have not yet been backed up, are backed up.
F. All files in the current fast recovery area (FRA) that have not yet been backed up, are backed up.
G. All files in any previous FRA that have been backed up already, are backed up.

Selected Answer: BCD