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Oracle 1z0-083 Exam Dumps

Oracle 1z0-083 Exam Dumps

Oracle Database Administration II

Total Questions : 282
Update Date : March 26, 2024
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1z0-083 Exam Dumps


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Oracle 1z0-083 Sample Questions

Question # 1

Choose three. Which three are true about corrupted data blocks and their recovery in an Oracle Database? 

A. If a row lock is held by a nonexistent transaction, the block containing the row is media corrupt.
 B. DB_BLOCK_CHECKING=TRUE causes a check sum to be added to each data block to help detect physical or media corruption. 
C. A media corrupt block is one where the block is not formatted correctly. 
D. The ANALYZE TABLE VALIDATE STRUCTURE CASCADE command verifies that each table row has an index entry pointing to it. 
E. If a row lock is held by a nonexistent transaction, the block containing the row is logically corrupt.
 F. DB_LOST_WRITE_PROTECT=TYPICAL causes extra logging overhead on the standby database. 



Question # 2

Choose two. Which two are true about a Recovery Manager (RMAN) duplication without a TARGET connection? 

A. The UNDO TABLESPACE clause is always required when no connection exists to the recovery catalog and the TARGET database is closed. 
B. RMAN disk-based backups of the database to be duplicated can be used by the auxiliary instance.
 C. The UNDO TABLESPACE clause is always required when no connection exists to the TARGET instance.
 D. The UNDO TABLESPACE clause is never required.
 E. RMAN "pushes" the backups of the database to be duplicated over the network to the auxiliary instance. 



Question # 3

Choose two. Which two are true about a read-only Oracle home? 

A. It is enabled by performing a software-only Oracle Database installation and then running the roohctl ¬enable script. 
B. It requires the Rapid Home Provisioning service. 
C. Its configuration data and log files reside in subdirectories under the Oracle home. 
D. It is enabled by performing an Oracle Database installation with database creation and then running the roohctl -enable script. 
E. It contains an image that can be distributed across multiple servers. 



Question # 4

What is the effect of specifying the "ENABLE PLUGGABLE DATABASE" clause in a "CREATE DATABASE" statement? 

A. It will create a multitenant container database (CDB) with only the root opened. 
B. ItwillcreateaCDBwithrootopenedandseedreadonly. 
C. It will create a CDB with root and seed opened and one PDB mounted. 
D. It will create a CDB that must be plugged into an existing CDB. 
E. ItwillcreateaCDBwithrootopenedandseedmounted. 



Question # 5

Choose three. Which three actions are mandatory post database upgrade?

 A. Updating client scripts with the new Oracle home.
 B. Resetting passwords to enforce case-sensitivity. 
C. Run OPatch commands from the new Oracle home. 
D. Setting threshold values for tablespace alerts. 
E. Migration to unified auditing. 
F. Upgrading user tables that depend on Oracle-maintained abstract data types. 



Question # 6

Choose two. 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?

 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 a new tablespace is added to a registered target database
 C. when a backup of the current control file is created 
D. 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 
E. when the target is first registered 



Question # 7

Choose the best answer. Examine this output of an export from the current release of an Oracle multitenant database: $ sqlplus system/oracle . SQL> col name for a10 SQL> select name, open_mode from v$pdbs; NAME OPEN_MODE --------------------------------------- PDB$SEED READ ONLY PDB1 READ WRITE PDB2 MOUNTED SQL> exit Next you execute: $ expdp system/oracle full=y What is the outcome? 

A. It fails because Data Pump cannot be container. 
B. It creates a full export of the root 
C. It creates a full export of the root 
D. It creates a full export of only the used while connected to the root container and PDB1. container and all PDBs. container and all open PDBs. root container. 



Question # 8

Choose three. Which three are true about Data Pump in an Oracle multitenant environment? 

A. It can be used to transport data from a non-CDB to a PDB. 
B. It can be used to clone a CDB. 
C. It can be used to transport data between PDBs.
 D. It can be used to transport data from a PDB to a non-CDB. 
E. It can be used to create a new PDB. 



Question # 9

Choose the best answer. Which should be tuned first when doing a performance tuning exercise for an Oracle Database environment? 

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



Question # 10

The persistent configuration settings for RMAN have default for all parameters. Identify four RMAN commands that produce a multi-section backup. 

A. BACKUP TABLESPACE SYSTEM SECTION SIZE 100M; 
B. BACKUP AS COPY TABLESPACE SYSTEM SECTION SIZE 100M; 
C. BACKUP ARCHIVELOG ALL SECTION SIZE 25M; 
D. BACKUP TABLESPACE "TEMP" SECTION SIZE 10M; 
E. BACKUP TABLESPACE "UNDO" INCLUDE CURRENT CONTROLFILE SECTION SIZE 100M; 
F. BACKUP SPFILE SECTION SIZE 1M; 
G. BACKUP INCREMENTAL LEVEL 0 TABLESPACE SYSAUX SECTION SIZE 100M; 



Question # 11

Choose two You upgrade your database from pre-12c to a multitenant container database (CDB) that contains pluggable databases (PDBs). Examine the query and its output: SQL> SELECT * FROM v $PWFILE_users; USERNAME SYSDB SYSOP SYSAS SYSBA SYSDG SYSKM CON_ID ------------------------------------------------------------------------SYS TRUE TRUE FALSE FALSE FALSE FALSE 0 Which two tasks must you perform to add users with the SYSBACKUP, SYSDG, and SYSKM prileges to the password file? 

A. Re-create or migrate the password file to the Oracle Database 12c format 
B. Grant the SYSBACKUP, SYSDG, and SYSKM privileges to the intended users. 
C. Copy the password file from a sample file in the DBS dierectory 
D. Assign appropriate operating system groups to SYSBACKUP, SYSDG, and SYSKM. 




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