1Z0-063 | The Rebirth Guide To 1Z0-063 vce
Q51. When is the UNDO_RETENTION parameter value ignored by a transaction?
A. when the data file of the undo tablespace is autoextensible
B. when there are multiple undotablespaces available in a database
C. when the undo tablespace is of a fixed size and retention guarantee is not enabled
D. when Flashback Database is enabled
Answer: C
Reference:http://docs.oracle.com/cd/B19306_01/server.102/b14231/undo.htm(undo retention, see the bullets)
Q52. 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.
Q53. You want to export the pluggable database (PDB) hr pdb1 from the multitenant container database (CDB)CDB1 and import it into the cdb2 CDB as the emp_pdb1 PDB.
Examine the list of possible steps required to perform the task:
1.Create a PDB named emp_pdb1.
2.Export the hr_pdb1 PDB by using the full clause.
3.Open the emp_pdb1 PDB.
4.Mount the emp_pdb1 PDB.
5.Synchronize the emp_pdb1 PDB in restricted mode.
6.Copy the dump file to the Data Pump directory.
7.Create a Data Pump directory in the emp_pdb1 PDB.
8.Import data into emp_pdb1 with the full and remap clauses.
9.Createthe same tablespaces in emp_pdb1 as in hr_pdb1 for new local user objects.
Identify the required steps in the correct order.
A. 2, 1, 3, 7, 6, and 8
B. 2, 1, 4, 5, 3, 7, 6, 9, and 8
C. 2, 1, 3, 7, 6, 9, and 8
D. 2, 1, 3, 5, 7, 6, and 8
Answer: C
Q54. In which three scenarios is media recovery required?
A. when a tablespace is accidentally dropped from a database
B. when archived redo log files are lost
C. when data files are lost
D. when one of the online redo log members is corrupted
E. when all control files are lost
Answer: A,C,E
Reference:http://docs.oracle.com/cd/A87860_01/doc/server.817/a76993/recoscen.htm
Q55. Which two statements are true about a common user?
A. A common user connected to a pluggable database (PDB) can exercise privileges across other PDBs.
B. A common user with the create user privilege can createother common users, as well as local users.
C. A common user can be granted only a common role.
D. A common user can have a local schema in a PDB.
E. A common user always uses the global temporary tablespace that is defined at the CDB level as the default temporary tablespace.
Answer: C,D
Q56. Your database is running in archivelog mode and regular nightly backups are taken. Due to a media failure, the current online redo log group, which has one member, is lost and the instance is aborted.
Examine the steps to recover the online redo log group and move it to a new location.
1.Restore the corrupted redo log group.
2.Restore the database from the most recent database backup.
3.Perform an incomplete recovery.
4.Relocatethe member of the damaged online redo log group to a new location.
5.Open the database with the resetlogs option.
6. Issue a checkpoint and clear the log.
Identify the required steps in the correct order.
A. 1, 3, 4, 5
B. 6, 3, 4, 5
C. 2, 3, 4, 5
D. 6, 4,3, 5
Answer: C
Q57. Which two statements are true regarding Oracle Data Pump?
A. EXPDP and IMPDP are the clientcomponents of Oracle Data Pump.
B. DBMS_DATAPUMP PL/SQL packages can be used independently of the Data Pump clients.
C. Oracle Data Pump export and import operations can be performed only by users with the SYSDBA privilege.
D. Oracle Data Pump imports can bedone from the export files generated in the Original Export Utility.
E. EXPDP and IMPDP use the procedures provided by DBMS_METADATA to execute export and import commands.
Answer: A,B
Reference:http://docs.oracle.com/cd/B19306_01/server.102/b14215/dp_overview.htm
Q58. Which three statements are true about Oracle Restart?
A. It can be configured to automatically attempt to restart various components after a hardware or software failure.
B. While starting any components, it automatically attempts to start all dependencies first and in properorder.
C. It can be configured to automatically restart a database in case of normal shutdown of the database instance.
D. It can be used to only start Oracle components.
E. It runs periodic check operations to monitor the health of Oracle components.
Answer: A,B,E
Reference:http://docs.oracle.com/cd/E18283_01/server.112/e17120/restart001.htm
Q59. You execute the RMAN commands:
RMAN> BACKUP VALIDATE DATABASE; RMAN> RECOVER CORRUPTION LIST; Which task is performed by these commands?
A. Corrupted blocks, if any, are repaired in the backup created.
B. Only those data files that have corrupted blocks are backed up.
C. Corrupted blocks in the data files are checked and repaired before performing the database backup.
D. The database is checked for physicallycorrupt blocks and any corrupted blocks are repaired.
Answer: C
Q60. 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.