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 Oracle
1Z0-0 60
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Latest Version: 16.0 
 
Question: 1 
     
Your multitenant container (CDB) contains two pluggable databases (PDB), HR_PDB and 
ACCOUNTS_PDB, both of which use the CDB tablespace. The temp file is called temp01.tmp. 
A user issues a query on a table on one of the PDBs and receives the following error: 
ERROR at line 1: 
ORA-01565: error in identifying file ‘/u01/app/oracle/oradata/CDB1/temp01.tmp’ 
ORA-27037: unable to obtain file status 
Identify two ways to rectify the error. (Choose two.) 
 
A. Add a new temp file to the temporary tablespace and drop the temp file that that produced the error. 
B. Shut down the database instance, restore the temp01.tmp file from the backup, and then restart the 
database. 
C. Take the temporary tablespace offline, recover the missing temp file by applying redo logs, and then 
bring the temporary tablespace online. 
D. Shut down the database instance, restore and recover the temp file from the backup, and then open 
the database with RESETLOGS. 
E. Shut down the database instance and then restart the CDB and PDBs. 
 
Answer: A,E     
 
  
* Because temp files cannot be backed up and because no redo is ever generated for them, RMAN never 
restores or recovers temp files. RMAN does track the names of temp files, but only so that it can 
automatically re-create them when needed. 
* If you use RMAN in a Data Guard environment, then RMAN transparently converts primary control 
files to standby control files and vice versa. RMAN automatically updates file names for data files, online 
redo logs, standby redo logs, and temp files when you issue RESTORE and RECOVER. 
Question: 2 
   
Examine the following commands for redefining a table with Virtual Private Database (VPD) policies: 
 
 
Which two statements are true about redefining the table? (Choose two.) 
 
A. All the triggers for the table are disabled without changing any of the column names or column types 
in the table. 
B. The primary key constraint on the EMPLOYEES table is disabled during redefinition. 
C. VPD policies are copied from the original table to the new table during online redefinition. 
D. You must copy the VPD policies manually from the original table to the new table during online 
redefinition. 
 
Answer: A,C     
 
  
The triggers cloned to the interim table are disabled until the redefinition is completed. Once the 
redefinition is complete, all cloned objects are renamed to the original names used by they object they 
were cloned from. 
References: http://www.oracle-base.com/articles/10g/online-table-redefinition-enhancements-
10gr1.php 
Question: 3 
   
Which two statements are true about the use of the procedures listed in the 
v$sysaux_occupants.move_procedure column? (Choose two.) 
 
 
A. The procedures may be used for some components to relocate component data to the SYSAUX 
tablespace from its current tablespace. 
B. The procedures may be used for some components to relocate component data from the SYSAUX 
tablespace to another tablespace. 
C. All the components may be moved into the SYSAUX tablespace. 
D. All the components may be moved from the SYSAUX tablespace. 
 
Answer: A,B     
 
  
References: http://www.dba-oracle.com/t_v_sysaux_contents_tips.htm 
Question: 4 
   
Which statement is true about Oracle Net Listener? 
 
A. It acts as the listening endpoint for the Oracle database instance for all local and non-local user 
connections. 
B. A single listener can service only one database instance and multiple remote client connections. 
C. Service registration with the listener is performed by the listener registration process (LREG) process 
of each database instance. 
D. The listener.ora configuration file must be configured with one or more listening protocol addresses 
to allow remote users to connect to a database instance. 
E. The listener.ora configuration file must be located in the ORACLE_HOME/network/admin directory. 
 
Answer: C     
 
  
Question: 5 
   
You are administering a database stored in Automatic Storage Management (ASM). You use RMAN to 
back up the database and the MD_BACKUP command to back up the ASM metadata regularly. You lost 
an ASM disk group DG1 due to hardware failure. 
In which three ways can you re-create the lost disk group and restore the data? (Choose three.) 
 
A. Use the MD_RESTORE command to restore metadata for an existing disk group by passing the 
existing disk group name as an input parameter and use RMAN to restore the data. 
B. Use the MKDG command to restore the disk group with the same configuration as the backed-up disk 
group and data on the disk group. 
C. Use the MD_RESTORE command to restore the disk group with the changed disk group specification, 
failure group specification, name, and other attributes and use RMAN to restore the data. 
D. Use the MKDG command to restore the disk group with the same configuration as the backed-up disk 
group name and same set of disks and failure group configuration, and use RMAN to restore the data. 
E. Use the MD_RESTORE command to restore both the metadata and data for the failed disk group. 
 
F. Use the MKDG command to add a new disk group DG1 with the same or different specifications for 
failure group and other attributes and use RMAN to restore the data. 
 
Answer: C,D,F     
 
  
Question: 6 
   
Your multitenant container database, CDB1, is running in ARCHIVELOG mode and has two pluggable 
databases, HR_PDB and ACCOUNTS_PDB. An RMAN backup exists for the database. 
You issue the command to open ACCOUNTS_PDB and find that the USERDATA.DBF data file for the 
default permanent tablespace USERDATA belonging to ACCOUNTS_PDB is corrupted. 
What should you do before executing the commands to restore and recover the data file in 
ACCOUNTS_PDB? 
 
A. Place CDB1 in the mount stage and then take the USERDATA tablespace offline in ACCOUNTS_PDB. 
B. Place CDB1 in the mount stage and issue the ALTER PLUGGABLE DATABASE accounts_pdb CLOSE 
IMMEDIATE command. 
C. Issue the ALTER PLUGGABLE DATABASE accounts_pdb OPEN RESTRICTED command. 
D. Take the USERDATA tablespace offline in ACCOUNTS_PDB. 
 
Answer: D     
 
  
* You can take an online tablespace offline so that it is temporarily unavailable for general use. The rest 
of the database remains open and available for users to access data. Conversely, you can bring an offline 
tablespace online to make the schema objects within the tablespace available to database users. The 
database must be open to alter the availability of a tablespace. 
Question: 7 
   
Which Oracle Database component is audited by default if the unified Auditing option is enabled? 
 
A. Oracle Data Pump 
B. Oracle Recovery Manager (RMAN) 
C. Oracle Label Security 
D. Oracle Database Vault 
E. Oracle Real Application Security 
 
Answer: B     
 
  
Question: 8 
 
   
Your multitenant container (CDB) containing three pluggable databases (PDBs) is running in 
ARCHIVELOG mode. You find that the SYSAUX tablespace is corrupted in the root container. 
The steps to recover the tablespace are as follows: 
1. Mount the CDB. 
2. Close all the PDBs. 
3. Open the database. 
4. Apply the archive redo logs. 
5. Restore the data file. 
6. Take the SYSAUX tablespace offline. 
7. Place the SYSAUX tablespace online. 
8. Open all the PDBs with RESETLOGS. 
9. Open the database with RESETLOGS. 
10. Execute the command SHUTDOWN ABORT. 
Which option identifies the correct sequence to recover the SYSAUX tablespace? 
 
A. 6, 5, 4, 7 
B. 10, 1, 2, 5, 8 
C. 10, 1, 2, 5, 4, 9, 8 
D. 10, 1, 5, 8, 10 
 
Answer: A     
 
  
RMAN> ALTER TABLESPACE sysaux OFFLINE IMMEDIATE; 
RMAN> RESTORE TABLESPACE sysaux; 
RMAN> RECOVER TABLESPACE sysaux; 
RMAN> ALTER TABLESPACE sysaux ONLINE; 
* Example: 
While evaluating the 12c beta3 I was not able to do the recover while testing “all pdb files lost”. 
Cannot close the pdb as the system datafile was missing… 
So only option to recover was: 
Shutdown cdb (10) 
startup mount; (1) 
restore pluggable database 
recover pluggable database 
alter database open; 
alter pluggable database name open; 
Oracle support says: You should be able to close the pdb and restore/recover the system tablespace of 
PDB. 
* Inconsistent backups are usually created by taking online database backups. You can also make an 
inconsistent backup by backing up data files while a database is closed, either: 
/ Immediately after the crash of an Oracle instance (or, in an Oracle RAC configuration, all instances) 
/ After shutting down the database using SHUTDOWN ABORT 
Inconsistent backups are only useful if the database is in ARCHIVELOG mode and all archived redo logs 
created since the backup are available. 
* Open the database with the RESETLOGS option after finishing recovery: 
 
SQL> ALTER DATABASE OPEN RESETLOGS; 
Question: 9 
   
Which three are direct benefits of the multiprocess, multithreaded architecture of Oracle Database 12c 
when it is enabled? (Choose three.) 
 
A. Reduced logical I/O 
B. Reduced virtual memory utilization 
C. Improved parallel Execution performance 
D. Improved Serial Execution performance 
E. Reduced physical I/O 
F. Reduced CPU utilization 
 
Answer: B,C,F     
 
  
* Multiprocess and Multithreaded Oracle Database Systems 
Multiprocess Oracle Database (also called multiuser Oracle Database) uses several processes to run 
different parts of the Oracle Database code and additional Oracle processes for the users—either one 
process for each connected user or one or more processes shared by multiple users. Most databases are 
multiuser because a primary advantage of a database is managing data needed by multiple users 
simultaneously. 
Each process in a database instance performs a specific job. By dividing the work of the database and 
applications into several processes, multiple users and applications can connect to an instance 
simultaneously while the system gives good performance. 
* In previous releases, Oracle processes did not run as threads on UNIX and Linux systems. Starting in 
Oracle Database 12c, the multithreaded Oracle Database model enables Oracle processes to execute as 
operating system threads in separate address spaces. 
Question: 10 
   
In order to exploit some new storage tiers that have been provisioned by a storage administrator, the 
partitions of a large heap table must be moved to other tablespaces in your Oracle 12c database? 
Both local and global partitioned B-tree Indexes are defined on the table. 
A high volume of transactions access the table during the day and a medium volume of transactions 
access it at night and during weekends. 
Minimal disruption to availability is required. 
Which three statements are true about this requirement? (Choose three.) 
 
A. The partitions can be moved online to new tablespaces. 
B. Global indexes must be rebuilt manually after moving the partitions. 
C. The partitions can be compressed in the same tablespaces. 
D. The partitions can be compressed in the new tablespaces. 
E. Local indexes must be rebuilt manually after moving the partitions. 
 
 
Answer: A,C,D     
 
  
A: You can create and rebuild indexes online. Therefore, you can update base tables at 
the same time you are building or rebuilding indexes on that table. You can perform 
DML operations while the index build is taking place, but DDL operations are not 
allowed. Parallel execution is not supported when creating or rebuilding an index 
online. 
D: Moving (Rebuilding) Index-Organized Tables 
Because index-organized tables are primarily stored in a B-tree index, you can 
encounter fragmentation as a consequence of incremental updates. However, you can 
use the ALTER TABLE...MOVE statement to rebuild the index and reduce this 
fragmentation. 
C: If a table can be compressed in the new tablespace, also it can be compressed in the same tablespace.