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Q31. Examine the query and its output executed In an RDBMS Instance: 

Which three statements are true about the users (other than sys) in the output? 

A. The C # # B_ADMIN user can perform all backup and recovery operations using RMAN only. 

B. The C # # C_ADMIN user can perform the data guard operation with Data Guard Broker. 

C. The C # # A_ADMIN user can perform wallet operations. 

D. The C # # D_ADMIN user can perform backup and recovery operations for Automatic Storage Management (ASM). 

E. The C # # B_ADMIN user can perform all backup and recovery operations using RMAN or SQL* Plus. 

Answer: B,D,E Explanation: 

B: SYSDG administrative privilege has ability to perform Data Guard operations (including startup and shutdown) using Data Guard Broker or dgmgrl. 

D: SYSASM The new (introduced in 11g) SYSASM role to manage the ASM instance, variable extent sizes to reduce shared pool usage, and the ability of an instance to read from a specific disk of a diskgroup 

E (Not A): SYSDBA is like a role in the sense that it is granted, but SYSDBA is a special built-in privilege to allow the DBA full control over the database 

Incorrect: 

Not C: SYSKM. SYSKM administrative privilege has ability to perform transparent data encryption wallet operations. 

Note: 

Use the V$PWFILE_USERS view to see the users who have been granted administrative privileges. 


Q32. Your multitenant container database has three pluggable databases (PDBs): PDB1, PDB2, and PDB3. 

Which two RMAN commands may be; used to back up only the PDB1 pluggable database? 

A. BACKUP PLUGGABLE DATABASE PDB1 while connected to the root container 

B. BACKUP PLUGGABLE DATABASE PDB1 while connected to the PDB1 container 

C. BACKUP DATABASE while connected to the PDB1 container 

D. BACKUP DATABASE while connected to the boot container 

E. BACKUP PLUGGABLE database PDB1 while connected to PDB2 

Answer: A,C 

Explanation: To perform operations on a single PDB, you can connect as target either to the root or directly to the PDB. 

* (A) If you connect to the root, you must use the PLUGGABLE DATABASE syntax in your RMAN commands. For example, to back up a PDB, you use the BACKUP PLUGGABLE DATABASE command. 

* (C)If instead you connect directly to a PDB, you can use the same commands that you would use when connecting to a non-CDB. For example, to back up a PDB, you would use the BACKUP DATABASE command. 

Reference: Oracle Database Backup and Recovery User's Guide 12c, About Backup and Recovery of CDBs 


Q33. You notice a performance change in your production Oracle database and you want to know which change has made this performance difference. 

You generate the Compare Period Automatic Database Diagnostic Monitor (ADDM) report to further investigation. 

Which three findings would you get from the report? 

A. It detects any configuration change that caused a performance difference in both time periods. 

B. It identifies any workload change that caused a performance difference in both time periods. 

C. It detects the top wait events causing performance degradation. 

D. It shows the resource usage for CPU, memory, and I/O in both time periods. 

E. It shows the difference in the size of memory pools in both time periods. 

F. It gives information about statistics collection in both time periods. 

Answer: A,B,D 

Explanation: Keyword: shows the difference. 

* Full ADDM analysis across two AWR snapshot periods Detects causes, measure effects, then correlates them Causes: workload changes, configuration changes Effects: regressed SQL, reach resource limits (CPU, I/O, memory, interconnect) Makes actionable recommendations along with quantified impact 

* Identify what changed / Configuration changes, workload changes 

* Performance degradation of the database occurs when your database was performing optimally in the past, such as 6 months ago, but has gradually degraded to a point where it becomes noticeable to the users. The Automatic Workload Repository (AWR) Compare Periods report enables you to compare database performance between two periods of time. 

While an AWR report shows AWR data between two snapshots (or two points in time), the AWR Compare Periods report shows the difference (ABE) between two periods (or two AWR reports with a total of four snapshots). Using the AWR Compare Periods report helps you to identify detailed performance attributes and configuration settings that differ between two time periods. 

Reference: Resolving Performance Degradation Over Time 


Q34. Which three statements are true concerning unplugging a pluggable database (PDB)? 

A. The PDB must be open in read only mode. 

B. The PDB must be dosed. 

C. The unplugged PDB becomes a non-CDB. 

D. The unplugged PDB can be plugged into the same multitenant container database (CDB) 

E. The unplugged PDB can be plugged into another CDB. 

F. The PDB data files are automatically removed from disk. 

Answer: B,D,E 

Explanation: B, not A: The PDB must be closed before unplugging it. 

D: An unplugged PDB contains data dictionary tables, and some of the columns in these encode information in an endianness-sensitive way. There is no supported way to handle the conversion of such columns automatically. This means, quite simply, that an unplugged PDB cannot be moved across an endianness difference. 

E (not F): To exploit the new unplug/plug paradigm for patching the Oracle version most effectively, the source and destination CDBs should share a filesystem so that the PDB’s datafiles can remain in place. 

Reference: Oracle White Paper, Oracle Multitenant 


Q35. You executed a DROP USER CASCADE on an Oracle 11g release 1 database and immediately realized that you forgot to copy the OCA.EXAM_RESULTS table to the OCP schema. 

The RECYCLE_BIN enabled before the DROP USER was executed and the OCP user has been granted the FLASHBACK ANY TABLE system privilege. 

What is the quickest way to recover the contents of the OCA.EXAM_RESULTS table to the OCP schema? 

A. Execute FLASHBACK TABLE OCA.EXAM_RESULTS TO BEFORE DROP RENAME TO OCP.EXAM_RESULTS; connected as SYSTEM. 

B. Recover the table using traditional Tablespace Point In Time Recovery. 

C. Recover the table using Automated Tablespace Point In Time Recovery. 

D. Recovery the table using Database Point In Time Recovery. 

E. Execute FLASHBACK TABLE OCA.EXAM_RESULTS TO BEFORE DROP RENAME TO EXAM_RESULTS; connected as the OCP user. 

Answer:

Explanation: RMAN tablespace point-in-time recovery (TSPITR). 

Recovery Manager (RMAN) TSPITR enables quick recovery of one or more tablespaces in a database to an earlier time without affecting the rest of the tablespaces and objects in the database. 

Fully Automated (the default) 

In this mode, RMAN manages the entire TSPITR process including the auxiliary instance. 

You specify the tablespaces of the recovery set, an auxiliary destination, the target time, and you allow RMAN to manage all other aspects of TSPITR. 

The default mode is recommended unless you specifically need more control over the location of recovery set files after TSPITR, auxiliary set files during TSPITR, channel settings and parameters or some other aspect of your auxiliary instance. 


Q36. Examine the following query output: 

You issue the following command to import tables into the hr schema: 

$ > impdp hr/hr directory = dumpdir dumpfile = hr_new.dmp schemas=hr TRANSFORM=DISABLE_ARCHIVE_LOGGING: Y 

Which statement is true? 

A. All database operations performed by the impdp command are logged. 

B. Only CREATE INDEX and CREATE TABLE statements generated by the import are logged. 

C. Only CREATE TABLE and ALTER TABLE statements generated by the import are logged. 

D. None of the operations against the master table used by Oracle Data Pump to coordinate its activities are logged. 

Answer:

Explanation: Oracle Data Pump disable redo logging when loading data into tables and when creating indexes. The new TRANSFORM option introduced in data pumps import provides the flexibility to turn off the redo generation for the objects during the course of import. The Master Table is used to track the detailed progress information of a Data Pump job. The Master Table is created in the schema of the current user running the Pump Dump export or import, and it keeps tracks of lots of detailed information. 


Q37. Which three statements are true about using flashback database in a multitenant container database (CDB)? 

A. The root container can be flashed back without flashing back the pluggable databases (PDBs). 

B. To enable flashback database, the CDB must be mounted. 

C. Individual PDBs can be flashed back without flashing back the entire CDB. 

D. The DB_FLASHBACK RETENTION_TARGET parameter must be set to enable flashback of the CDB. 

E. A CDB can be flashed back specifying the desired target point in time or an SCN, but not a restore point. 

Answer: B,D,E 


Q38. Which three resources might be prioritized between competing pluggable databases when creating a multitenant container database plan (CDB plan) using Oracle Database 

Resource Manager? 

A. Maximum Undo per consumer group 

B. Maximum Idle time 

C. Parallel server limit 

D. CPU 

E. Exadata I/O 

F. Local file system I/O 

Answer: A,C,D 


Q39. Which two statements are true? 

A. A role cannot be assigned external authentication. 

B. A role can be granted to other roles. 

C. A role can contain both system and object privileges. 

D. The predefined resource role includes the unlimited_tablespace privilege. 

E. All roles are owned by the sys user. 

F. The predefined connect role is always automatically granted to all new users at the time of their creation. 

Answer: B,C 

Reference: http://docs.oracle.com/cd/E11882_01/network.112/e36292/authorization.htm#DBSEG9987 

8 (the functionality of roles) 


Q40. Which three statements are true about a job chain? 

A. It can contain a nested chain of jobs. 

B. It can be used to implement dependency-based scheduling. 

C. It cannot invoke the same program or nested chain in multiple steps in the chain. 

D. It cannot have more than one dependency. 

E. It can be executed using event-based or time-based schedules. 

Answer: A,B,E 

Reference: http://docs.oracle.com/cd/B28359_01/server.111/b28310/scheduse009.htm#ADMIN12459