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NEW QUESTION # 141
Which two are true about server-generated alerts?

• A. Stateful alerts must be cleared by a DBA after resolving the problem.
• B. Stateless alerts can be purged manually from the alert history.
• C. Stateful alerts are purged automatically from the alert history.
• D. Stateless alerts are automatically cleared.
• E. Stateless alerts can be cleared manually.

Answer: A,D

NEW QUESTION # 142
Which two are true about automatic block repair? (Choose two.)

• A. Real-Time Query must be enabled on a physical standby database for automatic block repair to be done on its primary database.
• B. Real-Time Query must be enabled on a primary database for automatic block repair to be done on any of its physical standby databases.
• C. Automatic block repair can repair blocks with no standby database if DB_BLOCK_CHECKING = TRUE.
• D. It is not possible for media corrupt blocks.
• E. Real-Time Query must be enabled on a physical standby database for automatic block repair to be done on that physical standby database.

Answer: A,D

NEW QUESTION # 143
Choose the best answer. Which operating system group is NOT needed to perform an Oracle Database installation?

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

Answer: C

NEW QUESTION # 144
You have configured RMAN SBT channels to write backups to medi
a. You then take an RMAN backup by using this command: Which three are true? (Choose three.)

• A. The data file backups in the self-contained archive backup are not considered obsolete for two years regardless of the retention policy.
• B. The control file is included in the self-contained archival backup.
• C. All archive logs created after this backup are kept for two years.
• D. The restore point is a label for the system change number (SCN) before the archival backup was taken.
• E. The restore point is a label for the system change number (SCN) that will be saved two years after the archival backup was taken.
• F. The SPFILE is included in the self-contaied archival backup.

Answer: A,B,F

NEW QUESTION # 145
Which three are true about requirements for various flashback operations?

• A. flashback drop requires that the recyclebin parameter be set to on.
• B. flashback transaction query requires undo to retrieve all versions of a row that existed between two points in time.
• C. flashback version query requires undo to retrieve all versions of a row that existed between two points in time.
• D. flashback data archive requires undo to store all versions of all rows of a table being tracked.
• E. flashback drop requires undo to retrieve all versions of a row that existed between two points in time.
• F. flashback version query requires that the recyclebin parameter be set to on.

Answer: C,D,E

NEW QUESTION # 146
Examine this configuration:
1. The ORCL database data files are in Automatic Storage Management (Oracle ASM) disk group +DATA.
2. ORCL uses disk group +FRA for the Fast Recovery Area.
3. LISTENER is the listener for ORCL.
4. The database, listener, ASM instance, and ASM disk groups are managed by Oracle Restart.
5. All components are currently shut down.
You execute this command:

What is the outcome?

• A. The ORCL database, the Oracle ASM instances, the +DATA and +FRA disk groups, and the LISTENER are started.
• B. Only the ORCL database instance and the +DATA and +FRA disk groups are started.
• C. Only the ORCL database instance, the Oracle ASM instance, and the +DATA and +FRA disk groups are started.
• D. Only the ORCL database instance is started.
• E. Only the ORCL database and the ASM instances are started.

Answer: C

NEW QUESTION # 147
Examine this configuration: 1. CDB1 is a container database. 2. COMMON_USER_PREFIX is C##. 3. PDB1 is a pluggable database contained in CDB1. 4. APP1_ROOTis an application container contained in CDB1. 5. APP1_PDB1 is an application PDB contained in APP1_ROOT. You execute these commands successfully: Which two are true? (Choose two.)

• A. P1_USER1can be created in CDB1.
• B. APP1_USER1 can have different privileges in each Application PDB contained in APP1_ROOT.
• C. APP1_USER1can be created in CDB1.
• D. C##_USER1will have the same privileges and roles granted in all PDBs in CDB1.
• E. C##_APP_USER1 can be created in CDB1.
• F. APP1_USER1can be created in PDB1.

Answer: B,E

NEW QUESTION # 148
Choose the best answer. 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: $ export ORACLE_SID=cdb1 $ sqlplus / as sysdba SQL> STARTUP UPGRADE; SQL> SHOW pdbs CON_ID CON_NAME OPEN MODE RESTRICTED ---------------------------------------------------------------2 PDB$SEED 3 PDB1 4 PDB2 MIGRATE YES MOUNTED YES MOUNTED YES SQL> ALTER PLUGGABLE DATABASE pdb1 OPEN UPGRADE; Pluggable database altered. SQL> exit $ $ORACLE_HOME/perl/bin/perl catctl.pl -C 'PDB2' What is the outcome?

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

Answer: C

NEW QUESTION # 149
Which three are true about Automatic Workload Repository (AWR), Automatic Database Diagnostic Monitor (ADDM), and the Manageability Monitor (MMON) background process? (Choose three.)

• A. ADDM can recommend shrinking the buffer cache.
• B. ADDM can recommend extending the buffer cache.
• C. By default, MMON creates an AWR snapshot every 30 minutes.
• D. By default, AWR snapshots are automatically purged after eight days.
• E. ADDM performs its analysis only when a DBA requests it.
• F. AWR snapshots must be deleted when no longer required by ADDM.

Answer: A,B,D

NEW QUESTION # 150
You must transport the UNIVERSITY tablespace from one database to another.
The UNIVERSITY tablespace is currently open read/write.
The source and destination platforms have different endian formats. Examine this list of actions:
1.Make the UNIVERSITY tablespace read-only on the source system.
2.Export the UNIVERSITY tablespace metadata using EXPDP.
3.Convert the UNIVERSITY tablespace data fies to the destination platform format using RMAN on the source system.
4.Copy the UNIVERSITY tablespace data files to the destination system.
5.Copy the Data Pump dump set to the destination system.
6.Convert the UNIVERSITY tablespace data files to the destination platform format using RMAN on the destination system.
7.Import the UNIVERSITY tablespace metadata using IMPDP.
8.Make the UNIVERSITY tablespace read/write on the destination system.
Which is the minimum number of actions required, in the correct order, to transport the UNIVERSITY tablespace?

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

Answer: C

NEW QUESTION # 151
Choose three. Which three are true about upgrading an application in an application container?

• A. An application name and version number must be specified to upgrade the application.
• B. The upgrade must be performed when connected to CDB$ROOT.
• C. An application root clone gets created automatically.
• D. The upgrade can be performed when connected either to CDB$ROOT or to PDB$SEED.
• E. After an application upgrade, the application container's PDBs remain synchronized with the existing application root.
• F. After an application upgrade, the application container's PDBs are automatically synchronized with the application root clone.

Answer: A,C,F

NEW QUESTION # 152
Choose two. When backing up to the Oracle Fast Recovery Area (FRA), you determine that the backup takes too long and suspect a performance bottleneck. Which two are true about diagnosing and tuning these problems?

• A. If an RMAN BACKUP VALIDATE command takes noticeably less time than an actual backup, then write I/O is a likely bottleneck.
• B. Data files with a high value in V$BACKUP_ASYNC_IO.SHORT_WAITS are a potential performance bottleneck when asynchronous I/O is used.
• C. Data files with a high value in V$BACKUP_SYNC_IO.DISCRETE_BYTES_PER_SECOND are a potential performance bottleneck when synchronous I/O is used.
• D. If an RMAN BACKUP VALIDATE command takesroughly the same time as an actual backup, then both read and write I/O are likely bottlenecks.
• E. If an RMAN BACKUP VALIDATE command takesroughly the same time as an actual backup, then read I/O is a likely bottleneck.F

Answer: A,B,C

NEW QUESTION # 153
Choose three. Which three are true about SGA memory management in a multitenant database?

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

Answer: C,D,F

NEW QUESTION # 154
A database is configured in ARCHIVELOG mode.
Full RMAN backups are taken and no backup to trace has been taken of the control file. A media failure has occurred.
In which two scenarios is complete recovery possible? (Choose two.)

• A. after losing an archived log from after the most recent backup
• B. after losing an archived log from before the most recent backup
• C. after losing the SYSTEM tablespace
• D. when any archived log from, before, or after the most recent backup is corrupt.
• E. after losing all copies of the control file

Answer: B,D

NEW QUESTION # 155
Examine this configuration:
1. CDB1 is a container database.
2. PDB1 and PDB2 are pluggable databases in CDB1.
3. PDB1 and PDB2 are open in read write mode.
You execute these commands successfully:

Which two are true?

• A. CDB1 is in mount state
• B. Uncommitted transactions in CDB1 and pdbi have been rolled back.
• C. Uncommitted transactions in PDB1 have been rolled back.
• D. PDB1 is closed.
• E. CDB1 is shut down.

Answer: B,D

NEW QUESTION # 156
A schema owner truncated a table in error and must recover the data.
Which Oracle Flashback feature could be used to recover the data?

• A. FLASHBACK TRANSACTION
• B. FLASHBACK TABLE
• C. FLASHBACK VERSION QUERY
• D. FLASHBACK DATABASE
• E. FLASHBACK DATA ARCHIVE

Answer: C

NEW QUESTION # 157
Choose two. Which two are true about the SQL Tuning Advisor?

• A. It only recommends syntactic changes to SQL statements.
• B. It prevents performance regressions for SQL statements when changes are made.
• C. It checks each query being analyzed for missing or stale statistics.
• D. It can recommend semantic changes to SQL statements.
• E. It considers all SQL statements being analyzed by the advisor task as a group.

Answer: C,D

NEW QUESTION # 158
Which two are prerequisites for using FLASHBACK TABLE? (Choose two.)

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

Answer: D,E

NEW QUESTION # 159
Choose the best answer. Examine this configuration: 1. CDB1 is a container database. 2. APP_ROOT is an application root in CDB1. 3. APP_PDB1 is an application PDB in APP_ROOT. 4. FLASHBACK DATABASE is ON. You execute these commands: $ sqlplus sys/orac1e_4U@localhost:1521/cdb1 SQL> SELECT current_scn FROM v$database; CURRENT_SCN -----------------------2074756 SQL> CREATE TABLE cdb1_tab(c1 NUMBER) ; Table created. SQL> ALTER SESSION SET CONTAINER=app_root; Session altered. SQL> CREATE TABLE app_root_tab (c1 NUMBER) ; Table created. SQL> ALTER SESSION SET CONTAINER=app_pdb1; Session altered. SQL> CREATE TABLE app_pdb1_tab (c1 NUMBER) ; Table created. SQL> conn / as sysdba Connected. SQL> ALTER PLUGGABLE DATABASE app_root CLOSE; Pluggable database altered. SQL> FLASHBACK PLUGGABLE DATABASE app_root TO SCN 2074756; Flashback complete. Which table or set of tables will exist after the Flashback operation has completed?

• A. CDB1_TAB and APP_ROOT_TAB
• B. CDB1_TAB and APP_PDB1_TAB
• C. CDB1_TAB only
• D. CDB1_TAB, APP_ROOT_TAB, and APP_PDB1_TAB
• E. none of the tables, because all three tables will be dropped

Answer: B

NEW QUESTION # 160
Which two are true about diagnosing Oracle Database failure situations using Data Recovery Advisor?
(Choose two.)

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

Answer: A,C

NEW QUESTION # 161
Automatic Shared Memory Management is disabled for one of your database instances.
Some SQL statements perform poorly due to excessive hard parse activity, thereby degrading performance.
What would be your next step?

• A. Run the Memory Advisor for the shared pool.
• B. Run the Memory Advisor for the Program Global Area.
• C. Run the SQL Tuning Advisor.
• D. Run the SQL Access Advisor.
• E. Run the Memory Advisor for the System Global Area.

Answer: E

NEW QUESTION # 162
A database is configured in ARCHIVELOGmode.
Full RMAN backups are taken and no backup to trace has been taken of the control file.
A media failure has occurred.
In which two scenarios is complete recovery possible? (Choose two.)

• A. after losing the SYSTEMtablespace
• B. after losing an archived log from after the most recent backup
• C. after losing an archived log from before the most recent backup
• D. when any archived log from, before, or after the most recent backup is corrupt.
• E. after losing all copies of the control file

Answer: C,D

NEW QUESTION # 163
Which should be tuned first when doing a performance tuning exercise for an Oracle Database environment?

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

Answer: C

NEW QUESTION # 164
Which three conditions must be met before you create a Virtual Private Catalog (VPC)?

• A. The recovery_catalog_owner role should be granted to the virtual catalog owner.
• B. At least one target database should be registered in the recovery catalog.
• C. The register database privilege should be granted to the virtual catalog owner.
• D. A base recovery catalog should exist.
• E. The owner of VPC cannot own recovery catalog.

Answer: C,D,E

NEW QUESTION # 165
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The Oracle 1Z0-083 exam is a 105-minute exam consisting of 70 multiple-choice questions that test your knowledge in various areas of Oracle Database Administration, including database architecture, backup and recovery, performance tuning, security, and managing resources. The exam is available in two formats: on-site proctored and online proctored. The on-site proctored exam is conducted at authorized testing centers, while the online proctored exam can be taken from anywhere using a webcam and stable internet connection.

 

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