Latest 1Z0-083 Exam Real Tests Free Updated Today [Q151-Q170]

Latest 1Z0-083 Exam Real Tests Free Updated Today

1Z0-083 Real Exam Question Answers Updated [Oct 13, 2023]

Oracle 1Z1-083 certification exam is designed for professionals who want to validate their skills and knowledge in database administration. Oracle Database Administration II certification exam is specifically designed for individuals who have experience in administering Oracle databases, and want to take their skills to the next level. 1Z0-083 exam tests both theoretical and practical knowledge of the latest features and techniques used in Oracle database administration.

 

NEW QUESTION # 151
Which three are true about opatchauto? (Choose three.)

• A. Patches are applied via opatchauto.
• B. It is used to apply interim patches to Oracle Grid Infrastructure and Oracle Database home combinations.
• C. It performs a shutdown and then a restart of all processes in both Oracle Grid Infrastructure and Oracle Database home during the patching process.
• D. Users must always input patch plans to opatchauto.
• E. It requires the Oracle Grid Infrastructure and Oracle Database instances to be shut down before being invoked.
• F. It must be invoked by a user with root user privileges.
• G. It applies patches in nonrolling mode by default.

Answer: A,C,F

NEW QUESTION # 152
Which three are true about Recovery Manager (RMAN) in Oracle Database 19c and later releases? (Choose three.)

• A. It is always possible for RMAN to connect to a pluggable database as a target.
• B. It is always possible for RMAN to connect to a pluggable database as a target if any RMAN Catalog is used.
• C. A Virtual Private Catalog used to register a container database must be created in a pluggable database.
• D. A Virtual Private Catalog used to register a container database can be created in a non-container database.
• E. It is only possible for RMAN to connect to a pluggable database as a target if an RMAN Virtual Private Catalog is used.
• F. A Virtual Private Catalog used to register a container database can be created in a pluggable database.

Answer: A,D,F

Explanation:
Explanation/Reference:

NEW QUESTION # 153
Which three are true about transporting databases across platforms using Recovery Manager (RMAN) image copies? (Choose three.)

• A. The password file is automatically converted by RMAN.
• B. Data files can be converted on the source system.
• C. By default, the transported database will use Oracle Managed Files (OMF)
• D. Databases can be transported between systems with different endian formats.
• E. A new DBID is automatically created for the transported database.
• F. Data files can be converted on the destination system.

Answer: A,B,D

Explanation:
Explanation/Reference:
Explanation:
Password file is automatically converted by RMAN.

NEW QUESTION # 154
You are managing this configuration:
* CDB1 is a container database.
* PDB1 and PDB2 are two pluggable databases in CDB1.
* USER1.EMP is a table in PDB1 and USER2.DEPT is a table in PDB2.
CDB1 user SYS executes these commands after connecting successfully to PDB2:

Which two are true? (Choose two.)

• A. The insert on USER2.DEPT is a recursive autonomous transaction by the child session and is committed.
• B. The inserts on USER1.EMP were committed when the session connected to PDB2.
• C. The insert on USER2.DEPT is uncommitted.
• D. The inserts on USER1.EMP remain uncommitted when the session connected to PDB2.
• E. The inserts on USER1.EMP were committed when the session inserted a row into USER2.DEPT.
• F. The inserts on USER1.EMP were rolled back when the session connected to PDB2.
• G. The insert on USER2.DEPT fails because of the active transaction in the parent container.

Answer: B,C

NEW QUESTION # 155
Which two are true about creating RMAN backups for an Oracle container database?

• A. Control file backups can be created while connected to CDB$ROOT.
• B. The BACKUP TABLESPACE command can back up a pDB tablespace even if RMAN is connected to CDB$ROOT.
• C. Control file backups can not be created while connected to a PDB
• D. Online Redo Log backups can be created while connected to CDB$ROOT
• E. Archived Redo Log backups can be created while connected to PDB

Answer: A,D

NEW QUESTION # 156
Which three tasks can be automatically performed by the Automatic Data Optimization feature of Information lifecycle Management (ILM)?

• A. Tracking insert time by row for table rows
• B. Tracking the most recent write time for a table segment in a user tablespace
• C. Tracking the most recent read time for a table segment in a user tablespace
• D. Tracking the most recent write time for a table segment in the SYSAUX tablespace Correct
• E. Tracking the most recent read time for a table segment in the SYSTEM tablespace
• F. Tracking the most recent write time for a table block

Answer: A,B,C

NEW QUESTION # 157
Choose three. Which three are true about configuring CONTROLFILE AUTOBACKUP by using RMAN?

• A. The control file is backed up whenever a new tablespace is created.
• B. It requires the use of fast recovery area (FRA).
• C. The server parameter file (SPFILE) is automatically backed up each time the control file is backed up.
• D. The control file is backed up whenever a new table is created.
• E. The control file is backed up whenever an RMAN backup is successfully recorded in the catalog.
• F. The control file is backed up automatically each time the SPFILE is backed up manually.

Answer: A,C,F

NEW QUESTION # 158
A database is configured in archivelog mode.
Full RMAN backups are taken daily 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?

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

Answer: D

NEW QUESTION # 159
Choose three. Which three are true about the tools for diagnosing Oracle Database failure situations?

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

Answer: A,B,D

NEW QUESTION # 160
Which two are true about Oracle Flashback features? (Choose two.)

• A. FLASHBACK QUERY can retrieve REDO records from ONLINE and ARCHIVED REDO LOG files.
• B. FLASHBACK VERSION QUERY can retrieve REDO records from ONLINE and ARCHIVED REDO LOG files.
• C. FLASHBACK DROP can undrop an index when undropping a table.
• D. After a database is restored from flashback logs using the FLASHBACK DATABASE command, it is sometimes rolled forward using redo logs.
• E. FLASHBACK TABLE can undrop a column.

Answer: A,B

NEW QUESTION # 161
While backing up to the Oracle Fast Recovery Area (FRA), you determined the backup is taking too long and suspect a performance bottleneck.
Which three are true about diagnosing and tuning these problems? (Choose three.)

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

Answer: D,F,G

NEW QUESTION # 162
Choose two. Examine this configuration: 1. CDB1 and CDB2 are two container databases. 2. PDB1 is a pluggable database in CDB1. 3. PDB1_C1_SRV is a service for PDB1. 4. CDB1_LINK is a database link in CDB2 referring to PDB1. 5. CDB2 is also an entry in tnsnames.ora pointing to the CDB2 database default service. You execute these commands successfully: $ sqlplus sys/oracle_4U@cdb2 as sysdba SQL> CREATE PLUGGABLE DATABASE PDB1 FROM PDB1@CDB1_LINK SERVICE_NAME_CONVERT= ('PDB1_C1_SRV', 'PDB1_C2_SRV') ; Which two are true?

• A. PDB1_C1_SRV in CDB1 will be renamed PDB1_C2_SRV.
• B. PDB1 will be created in CDB2 and left in MOUNT state.
• C. PDB1 will be created in CDB2 and automatically opened.
• D. PDB1_C2_SRV will be created but not started.
• E. PDB1_C2_SRV will be created and started automatically.

Answer: B,D

NEW QUESTION # 163
How do you configure a CDB for local undo mode?

• A. Open the CDB instance in restricted mode. In CDB$ROOT, drop the UNDO tablespace. Execute ALTER DATABASE LOCAL UNDO ON in each PDB, and then restart the CDB instance.
• B. Open the CDB instance in upgrade mode. In CDB$ROOT, execute ALTER DATABASE LOCAL UNDO ON, and then restart the CDB instance.
• C. Open the CDB instance in upgrade mode. In each PDB, execute ALTER DATABASE LOCAL UNDO ON, create an UNDO tablespace, and then restart the CDB instance.
• D. Open the CDB instance in restricted mode. In CDB$ROOT, execute ALTER DATABASE LOCAL UNDO ON, and create an UNDO tablespace in each PDB, then restart the CDB instance.
• E. Open the CDB instance in read-only mode. In CDB$ROOT, execute ALTER DATABASE LOCAL UNDO ON, and then change the CDB to read/write mode.

Answer: D

NEW QUESTION # 164
Choose two. Which two are true about monitoring waits for sessions and services?

• A. V$SESSION_WAIT and V$SESSION both contain details of the event on which a non-waiting session last waited.
• B. V$SESSION_EVENT displays all waits events for those events that have occurred at least once for sessions that have now terminated.
• C. V$SESSION_WAIT and V$SESSION both contain details of the event on which a waiting session is currently waiting.
• D. V$SESSION_WAIT_CLASS displays waits broken down by wait class only for terminated sessions.
• E. V$SERVICE_EVENT displays wait counts for every wait event for each service even including counts of zero for waits that never occurred.

Answer: C,E

NEW QUESTION # 165
Choose three. You issued this command: RMAN> BACKUP RECOVERY AREA FORCE; Which three are true?

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

Answer: E,F

NEW QUESTION # 166
Examine the command for creating pluggable database PDB2 in container database CDB2. Select three options, any one of which is required for it to execute successfully. (Choose three.)

• A. Add only the CREATE_FILE_DEST clause to the statement.
• B. Set only the PDB_FILE_NAME_CONVERT parameter.
• C. Add the FILE_NAME_CONVERT clause to the statement and set the PDB_FILE_NAME_CONVERT parameter.
• D. Enable only OMF.
• E. Add the FILE_NAME_CONVERT clause to the statement and enable Oracle Managed Files (OMF)
• F. Set the PDB_FILE_NAME_CONVERT parameter and enable OMF.

Answer: A,B,D

NEW QUESTION # 167
Which three are true about using Database Resource Manager in an Oracle multitenant environment?

• A. PDB-level resource plans can limit uncommitted UNDO per consumer group.
• B. A CDB-level resource plan can limit PDB UNDO use.
• C. A PDB-level resource plan can limit session PGA memory.
• D. A CDB-level resource plan is mandatory when using PDB-level resource plans.
• E. A CDB-level resource plan can limit PDB CPU utilization
• F. A CDB-level resource plan can limit session CPU utilization.

Answer: C,E,F

NEW QUESTION # 168
Which three are true in Oracle 19c and later releases? (Choose three.)

• A. Schema Only accounts can be granted administrator privileges.
• B. If the password file location changes, then the new location is used automatically by the Oracle Server.
• C. Unified Auditing can be configured to audit only events that are issued directly by an audited user.
• D. Privilege Analysis is included in Oracle Enterprise Edition and no longer requires Database Vault.
• E. Unified Auditing can be configured to audit only events that are issued indirectly by an audited user.
• F. All the Oracle-supplied accounts are Schema Only accounts.

Answer: A,D,F

NEW QUESTION # 169
Which two statements are true about recovering logically corrupted tables or table partitions from an RMAN backup?

• A. Tables or table partitions can be recovered by using an auxiliary instance only.
• B. Tables or table partitions with a foreign key cannot be recovered.
• C. Tables or table partitions can be recovered only when the database is in mount state.
• D. Tables or table partitions from the system and sysaux tablespaces cannot be recovered.
• E. Tables with not null constraints cannot be recovered.

Answer: A,D

NEW QUESTION # 170
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