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Q81. Which four actions are possible during an Online Datafile Move operation?
A. Creating and dropping tables in the datafile being moved
B. Performing file shrinkof the data file being moved
C. Querying tables in the datafile being moved
D. Performing Block Media Recovery for a data block in the datafile being moved
E. Flashing back the database
F. Executing DML statements on objects stored in the datafile being moved
Answer: A,C,E,F
Explanation: You can now move On line Datafile without hove to stop Monoged Recovery and manually copy and rename Files. This can even be used to move Datafiles from or to ASM.
-New in Oracle Database 12c: FROM METAUNK. Physical Standby Database is in Active Data Guard Mode (opened READ ONLY and Managed Recovery is running): It is now possible to online move a Datafile while Managed Recovery is running, ie. the Physical Standby Database is in Active Data Guard Mode. You con use this Command to move the Datafile
-A flashback operation does not relocate a moved data file to its previous location. If you move a data file online from one location to another and later flash back the database to a point in time before the move, then the Data file remains in the new location, but the contents of the Data file ore changed to the contents at the time specified in the flashback. Oracle0 Database Administrator's Guide 12c Release 1 (12.1)
Q82. A user issues a query on thesales table and receives the following error:
ERROR at line 1:
ORA-01565: error in identifying file '/u0l/app/oracle/oradata/ORCL/temp01.dbf'
ORA-27037: unable to obtain file status
Which two actions would you take to recover the temporary tablespace?
A. Drop the tenpOi.dbf file, and then re-create the temp file.
B. Add a new temp file to the temporary tablespace and drop the tempOi.dbf file.
C. Shut down the database instance, start up the database instance in mount state, create a new temporary tablespace, and then open the database.
D. Take the temporary tablespace offline, recover the missing temp file, and then bring the temporary tablespace online.
E. Create a new temporary tablespace and assign it as the default to the user.
Answer: D,E
Q83. Your database supports a Decision Support System (DSS)workload that involves the execution of complex queries. Currently, the database is running with peak workload. You want to analyze some of the most resource-intensive statements cached in the library cache.
What must you run to receive recommendations on the efficient use of indexes and materialized views to improve query performance?
A. SQL Performance Analyzer
B. SQL Access Advisor
C. SQL Tuning Advisor
D. Automatic Workload Repository (AWR) report
E. Automatic Database Diagnostic Monitor (ADDM)
Answer: B
Reference:http://docs.oracle.com/cd/B28359_01/server.111/b28275/tdppt_sqltune.htm#TD PPT160(4thpara)
Q84. Examine the command to create a pluggable database (PDB):
SQL> CREATE PLUGGABLE DATABASE pdb2 FROM pdb1
FILE_NAME-_CONVERT = ('/disk1/oracle/pdb1/', '/disk2/oracle/pdb2/’) PATH_PREFIX= '/disk2/oracle/pdb2'
Which two statements are true?
A. The pluggable database pdb2 is created by cloning pdb1 and is in mount state.
B. Details about the metadata describing pdb2 are stored in an XML file in the '/disk2/oracle/pdb2/' directory.
C. The tablespace specifications of pdb2 are the same as pdb1.
D. All database objects belonging to common users in PD3I are cloned in PD32.
E. pdb2 is created with its own private undo and temp tablespaces.
Answer: A,C
Reference:http://oracle-info.com/2013/07/27/12c-database-create-pdbs-plug-unplug/(see the table, 4throw)
Q85. The environmental variable oracle_Base is set to /u01/app/oracleand oracle_home is set to /u01/app/oracle/product/12.1.0/db 1.
You want to check the diagnostic files created as part of the Automatic Diagnostic Repository (ADR). Examine the initialization parameters set in your database.
NAMETYPEVALUE
audit_file_deststring/u01/app/oracle/admin/eml2rep/adump
background_dump_deststring
core_dump_deststring
db_create_file_deststring
db_recovery_file_deststring/u01/app/oracle/fast_recovery_area
diagnostic_deststring
What is the location of the ADR base?
A. It is set to/u01/app/oracle/product:/12.1.0/db_1/log.
B. It is set to /u01/app/oracle/admin/enl2r&p/adump.
C. It is set to /u01/app/oracle.
D. It is set to/u01/app/oracle/flash_recovery_area.
Answer: A
Explanation:
http://docs.oracle.com/cd/B28359_01/server.111/b28310/diag001.htm#ADMIN11008 The Automatic Diagnostic Repository (ADR) is a directory structure that is stored outside of the database. It is therefore available for problem diagnosis when the database is down. The ADR root directory is known as ADR base. Its location is set by the DIAGNOSTIC_DEST initialization parameter. If this parameter is omitted or left null, the database sets DIAGNOSTIC_DEST upon startup as follows: If environment variable ORACLE_BASE is set, DIAGNOSTIC_DEST is set to the directory designated by ORACLE_BASE. If environment variable ORACLE_BASE is not set, DIAGNOSTIC_DEST is set to ORACLE_HOME/log.
Q86. Examine the output: SQL > ARCHIVE LOGLIST Database log modeArchive Mode
Automatic archivalEnabled Archive DestinationUSE_DB_RECOVERY_FILE_DEST
Oldest online log sequence376
Next log sequence to archive378
Current log sequence378
Which three types of files are automatically placed in the fast recovery area?
A. Flashback data archives (FDA)
B. Archived redo log files
C. Control file autobackups
D. Server parameter file (SPFILE)
E. Recovery Manager (RMAN) backup pieces
Answer: B,C,E
Reference:http://docs.oracle.com/cd/E11882_01/backup.112/e10642/glossary.htm#BRADV 526
Q87. You are administering a multitenant container database (CDB) cdb1.
Examine the command and itsoutput:
SQL>show parameterfile
NAMETYPEVALUE
db_create_file_deststring db_file_name_convertstring db_filesinteger200
You verify that sufficient disk space is available and that nofile currently exists in the ‘/u0l/app/oracle/oradata/cdb1/salesdb' location.
You plan to create a new pluggable database (PDB) by using the command:
SQL>CREATEPLUGGABLEDATABASESALESPDB
ADMINUSERsalesadmIDENTIFIED 3Y password
ROLES=(dba)
DEFAULTTABLESPACEsales
DATAFILE' /u01/app/oracle/oradata/cdb1/salesdb/sales01 .dbf’SIZE 250M AUTOEXTEND
ON
FILE_NAME_CONVERT=(‘/u01/app/oracle/oradata/cdb1/pdbseed/',
'/u01/app/oracle/oradata/cdb1/salesdb/')
STORAGE(MAXSIZE2G)
PATK_PREFIX='/u01/app/oracle/oradata/cdb1/SALESPDB'
Which statement is true?
A. SALESPDB is created and is in mount state.
B. PDB creation fails because the D3_file_name_convert parameter is not set in the CDB.
C. SALESPDB is created and is in read/write mode.
D. PDB creation fails because a defaulttemporary tablespace is not defined for SALESPDB.
Answer: B
Q88. Your database is running in archivelog mode. Examine the initialization parameters you plan to set for yourdatabase instance.
LOG_ARCHIVE_DEST_1 = 'LOCATION=/disk1/arch' LOG_ARCHIVE_DEST_2 = 'L0CATI0N=/disk2/3rch' LOG_ARCHIVE_DEST_3 = 'LOCATION=/disk3/arch' L0G_ARCHIVE_DEST_4 = 'L0CATI0N=/disk4/3rch MANDATORY'
Identify the statement that correctly describes these settings.
A. An online redo log file is not allowed to be overwritten if the archived log file cannot be created in any of the log_archive_dest_.n destinations.
B. Optional destinations cannot use the fast recovery area.
C. An online redo log file isnot allowed to be overwritten if the archived log file cannot be created in the location specified for log_archive_dest_4.
D. These settings work only if log__archive_min_succeed_dest is set to a value of 4.
Answer: A
Q89. You plan to use the In-Database Archiving feature of Oracle Database 12c, and store rows that are inactive for over three months, in Hybrid Columnar Compressed (HCC) format.
Which three storage options support the use of HCC?
A. ASM disk groups with ASM disks consisting of Exadata Grid Disks.
B. ASM disk groups with ASM disks consisting of LUNS on any Storage Area Network array
C. ASM disk groups with ASM disks consisting of any zero padded NFS-mounted files
D. Database files stored in ZFS and accessed using conventional NFS mounts.
E. Database files stored in ZFS and accessed using the Oracle Direct NFS feature
F. Database files stored in any file system and accessed using the Oracle Direct NFS feature
G. ASM disk groups with ASM disks consisting of LUNs on Pillar Axiom Storage arrays
Answer: A,E,G
Explanation: HCC requires the use of Oracle Storage – Exadata (A), Pillar Axiom (G) or
Sun ZFS Storage Appliance (ZFSSA).
Note:
*
Hybrid Columnar Compression, initially only available on Exadata, has been extended to support Pillar Axiom and Sun ZFS Storage Appliance (ZFSSA) storage when used with Oracle Database Enterprise Edition 11.2.0.3 and above
*
Oracle offers the ability to manage NFS using a feature called Oracle Direct NFS (dNFS). Oracle Direct NFS implements NFS V3 protocol within the Oracle database kernel itself. Oracle Direct NFS client overcomes many of the challenges associated with using NFS with the Oracle Database with simple configuration, better performance than traditional NFS clients, and offers consistent configuration across platforms.
Q90. Your database is running in noarchivelog mode. One of the data files belonging to the system tablespace is corrupted. You notice that all online redo logs have been overwritten since the last backup.
Which method would you use to recover the data file?
A. Shut downthe instance if not already shut down, restore all data files belonging to the system tablespace from the last backup, and restart the instance.
B. Shut down the instance if not already shut down, restore the corrupted data file belonging to the system tablespace from the last backup, and restart the instance.
C. Shut down the instance if not already shut down, restore all data files for the entire database from the last backup, and restart the instance.
D. Mount the database, restore all data files belongingto the system tablespace from the last backup, and open the database.
Answer: C
