1z0-067-Exam-Dumps

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1z0-067-Exam-Dumps

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Version: 9.0
Question: 1
Which two statements are true about scheduling operations in a pluggable database (PDB)?
A. Scheduler jobs for a PDB can be defined only at the container database (CDB) level.
B. A job defined in a PDB runs only if that PDB is open.
C. Scheduler attribute setting is performed only at the CDB level.
D. Scheduler objects created by users can be exported or imported using Data Pump.
E. Scheduler jobs for a PDB can be created only by common users.
Answer: B,D
Explanation:
In general, all scheduler objects created by the user can be exported/imported into the PDB using data
pump. Predefined scheduler objects will not get exported and that means that any changes made to
these objects by the user will have to be made once again after the database has been imported into the
pluggable database. However, this is how import/export works currently. A job defined in a PDB will run
only if a PDB is open.
Question: 2
A complete database backup to media is taken for your database every day. Which three actions would
you take to improve backup performance?
A. Set the backup_tape_io_slaves parameter to true.
B. Set the dbwr_io_slaves parameter to a nonzero value if synchronous I/O is in use.
C. Configure large pool if not already done.
D. Remove the rate parameter, if specified, in the allocate channel command.
E. Always use RMAN compression for tape backups rather than the compression provided by media
manager.
F. Always use synchronous I/O for the database.
Answer: B,C,D
Explanation:
Tuning RMAN Backup Performance: Procedure Many factors can affect backup performance. Often,
finding the solution to a slow backup is a process of trial and error. To get the best performance for a
backup, follow the suggested steps in this section: Step 1: Remove RATE Parameters from Configured and
Allocated Channels Step 2: If You Use Synchronous Disk I/O, Set DBWR_IO_SLAVES Step 3: If You Fail to
Allocate Shared Memory, Set LARGE_POOL_SIZE Step 4: Tune RMAN Tape Streaming Performance
Bottlenecks
Step
5:
Query
V$
Views
to
https://docs.oracle.com/database/121/BRADV/rcmtunin.htm#BRADV172
Identify
Bottlenecks
Question: 3
For which three pieces of information can you use the RMAN list command?
A. stored scripts in the recovery catalog
B. available archived redo log files
C. backup sets and image copies that are obsolete
D. backups of tablespaces
E. backups that are marked obsolete according to the current retention policy
Answer: A,B,D
Explanation:
About the LIST Command: The primary purpose of the LIST command is to list backup and copies. For
example, you can list: -Backups and proxy copies of a database, tablespace, datafile, archived redo log, or
control file -Backups that have expired -Backups restricted by time, path name, device type, tag, or
recoverability
-Archived
redo
log
files
and
disk
copies
http://docs.oracle.com/cd/B28359_01/backup.111/b28270/rcmreprt.htm#BRADV89585
Question: 4
You notice performance degradation in your production Oracle 12c database. You want to know what
caused this performance difference.
Which method or feature should you use?
A. Database Replay
B. Automatic Database Diagnostic Monitor (ADDM) Compare Period report
C. Active Session History (ASH) report
D. SQL Performance Analyzer
Answer: B
Explanation:
References: http://docs.oracle.com/cd/E24628_01/server.121/e17635/tdppt_degrade.htm
Question: 5
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
Explanation:
Chains are the means by which you can implement dependency based scheduling, in which jobs are
started
depending
on
the
outcomes
of
one
or
more
previous
jobs.
DBMS_SCHEDULER.DEFINE_CHAIN_STEP
DBMS_SCHEDULER.DEFINE_CHAIN_EVENT_STEP
http://docs.oracle.com/cd/B28359_01/server.111/b28310/scheduse009.htm#ADMIN12
Question: 6
Because of logical corruption of data in a table, you want to recover the table from an RMAN backup to a
specified point in time.
Examine the steps to recover this table from an RMAN backup:
1.Determine which backup contains the table that needs to be recovered.
2.Issue the recover table RMAN command with an auxiliary destination defined and the point in time
specified.
3.Import the Data Pump export dump file into the auxiliary instance.
4.Create a Data Pump export dump file that contains the recovered table on a target database.
Identify the required steps in the correct order.
A. 1, 4, 3
B. 1, 2
C. 1, 4, 3, 2
D. 1, 2, 4
Answer: D
Explanation:
Because according to oracle PDFs if you run restore table ... auxiliary a impede and rename can be
included. So there is no reason to make the import manually if it can be already included in step 2.
https://docs.oracle.com/database/121/BRADV/rcmresind.htm#BRADV689
Question: 7
Examine the command:
SQL> RECOVER DATABASE USING BACKUP CONTROLFILE UNTIL CANCEL;
In which two scenarios is this command required?
A. The current online redo log file is missing.
B. A data file belonging to a noncritical tablespace is missing.
C. All the control files are missing.
D. The database backup is older than the control file backup.
E. All the data files are missing.
Answer: A,C
Explanation:
http://searchoracle.techtarget.com/answer/Recover-database-using-backup-controlfile-until-cancel
Question: 8
Which two are prerequisites for setting up Flashback Data Archive?
A. Fast Recovery Area should be defined.
B. Undo retention guarantee should be enabled.
C. Supplemental logging should be enabled.
D. Automatic Undo Management should be enabled.
E. All users using Flashback Data Archive should have unlimited quota on the Flashback Data Archive
tablespace.
F. The tablespace in which the Flashback Data Archive is created should have Automatic Segment Space
Management (ASSM) enabled.
Answer: D,F
Explanation:
http://www.dba-oracle.com/t_11g_new_enabling_fdba.htm There are a number of restrictions for
flashback archives: The tablespaces used for a flashback archive must use local extent management and
automatic segment space management. The database must use automatic undo management.
Question: 9
The environmental variable oracle_Base is set to /u01/app/oracle and 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.
NAME TYPE VALUE
-------------------------------------------- ------------------- -----------------------------------------------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/en12.1.0/adump.
C. It is set to /u01/app/oracle.
D. It is set to /u01/app/oracle/flash_recovery_area.
Answer: C
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.
Question: 10
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.Create the 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
Explanation:
Because the step 2 says that you perfom an expdp with the full clause and you don’t need to create the
tablespaces when you perform the impdp. FULL=yes will export tablespace definitions. So no need step
9. https://docs.oracle.com/cd/B10501_01/server.920/a96652/ch01.htm
Question: 11
You wish to create jobs to satisfy these requirements:
1. Automatically bulk load data from a flat file.
2. Rebuild indexes on the SALES table after completion of the bulk load.
How would you create these jobs?
A. Create both jobs by using Scheduler raised events.
B. Create both jobs using application raised events.
C. Create one job to rebuild indexes using application raised events and another job to perform bulk load
using Scheduler raised events.
D. Create one job to rebuild indexes using Scheduler raised events and another job to perform bulk load
by using events raised by the application.
Answer: C
Explanation:
The bulk loader would be started in response to a file watcher scheduler event and the indexes would be
rebuilt
in
response
to
an
application
event
raised
by
the
bulk
loader.
https://docs.oracle.com/cd/E18283_01/server.112/e17120/scheduse005.htm#CIABIEJA Your application
can raise an event to notify the Scheduler to start a job. A job started in this way is referred to as an
event-based job. The job can optionally retrieve the message content of the event.
https://docs.oracle.com/cd/B28359_01/server.111/b28310/scheduse008.htm#CHDIAJEB
Question: 12
Your Oracle 12c multitenant container database (CDB) contains multiple pluggable databases (PDBs). In
the PDB hr_pdb, the common user c##admin and the local user b_admin have only the connect
privilege.
You create a common role c##role1 with the create table and select any table privileges.
You then execute the commands:
SQL> GRANTc##role1 TOcMadmin CONTAINER=ALL;
SQL>CONNsys/oracle@HR_PDB assysdba
SQL> GRANTc##role1TO b_admin CONTAINER=CURRENT;
Which two statements are true?
A. C##admin can create and select any table, and grant the c##role1 role to users only in the root
container.
B. B_admin can create and select any table in both the root container and kr_pdb.
C. c##admin can create and select any table in the root container and all the PDBs.
D. B_admin can create and select any table only in hr_pdb.
E. The grant c=»role1 to b_admin command returns an error because container should be set to ALL.
Answer: C,D
Question: 13
Examine the commands executed in the root container of your multitenant container database (CDB)
that has multiple pluggable databases (PDBs):
SQL> CREATE USER c##a_admin IDENTIFIED BY orcl123;
SQL> CREATE ROLE c##role1 CONTAINER=ALL;
SQL> GRANT CREATE VIEW TO C##roleI CONTAINER=ALL;
SQL> GRANT c##role1 TO c##a_admin CONTAINER=ALL;
SQL> REVOKE c##role1 FROM c##a_admin;
What is the result of the revoke command?
A. It executes successfully and the c##role1 role is revoked from the c##a_admin user only in the root
container.
B. It fails and reports an error because the container=all clause is not used.
C. It executes successfully and the c##rocl1 role is revoked from the c##a_admin user in the root
database and all the PDBs.
D. It fails and reports an error because the comtainer=current clause is not used.
Answer: B
Explanation:
SQL> REVOKE c##role1 FROM c##a_admin; REVOKE c##role1 FROM c##a_admin * ERROR at line 1: ORA
- 01951: ROLE ‘C##ROLE1’ not granted to ‘C##A_ADMIN’ SQL> REVOKE c##role1 FROM c##a_admin
CONTAINER=ALL; Revoke succeeded. SQL> This CREATE USER c##a_admin IDENTIFIED BY orcl123; will
create common user event container is not specified.
Question: 14
Examine the RMAN command:
RMAN> CONFIGURE ENCRYPTION FOR DATABASE ON;
RMAN> BACKUP DATABASE PLUS ARCHIVELOG;
Which prerequisite must be met before accomplishing the backup?
A. The password for the encryption must be set up.
B. Oracle wallet for the encryption must be set up.
C. All the tablespaces in the database must be encrypted.
D. Oracle Database Vault must be enabled.
Answer: B
Explanation:
Explanation
Configuration encryption will used by Transparent encryption. For transparent encryption, you will need
to create a wallet, and it must be open. Transparent encryption will then occur automatically after you
have issued the CONFIGURE ENCRYPTION FOR DATABASE ON or CONFIGURE ENCRYPTION FOR
TABLESPACE ON command.
http://docs.oracle.com/cd/E25054_01/backup.1111/e10642/rcmbckad.htm#CEGEJABH
CONFIGURE ENCRYPTION : You can use this command to persistently configure transparent encryption.
You cannot persistently configure dual mode or password mode encryption. SET ENCRYPTION : You can
use this command to configure dual mode or password mode encryption at the RMAN session level.
Question: 15
A database is running in archive log mode. The database contains locally managed tablespaces. Examine
the RMAN command:
RMAN> BACKUP
AS COMPRESSED BACKUPSET
SECTION SIZE 1024M
DATABASE;
Which statement is true about the execution of the command?
A. The backup succeeds only if all the tablespaces are locally managed.
B. The backup succeeds only if the RMAN default device for backup is set to disk.
C. The backup fails because you cannot specify section size for a compressed backup.
D. The backup succeeds and only the used blocks are backed up with a maximum backup piece size of
1024 MB.
Answer: D
Explanation:
2018-04-01T21:58:00.47
2018-04-01T21:58:00.48
2018-04-01T21:58:00.51
2018-04-01T21:58:00.52
2018-04-01T21:58:00.52
COMPRESSED enables binary compression.
RMAN compresses the data written into the backup set to reduce the overall size of the backup set. All
backups that create backup sets can create compressed backup sets. Restoring compressed backup sets
is no different from restoring uncompressed backup sets.
RMAN applies a binary compression algorithm as it writes data to backup sets. This compression is
similar to the compression provided by many media manager vendors. When backing up to a locally
attached tape device, compression provided by the media management vendor is usually preferable to
the binary compression provided by BACKUP AS COMPRESSED BACKUPSET.
Therefore, use uncompressed backup sets and turn on the compression provided by the media
management vendor when backing up to locally attached tape devices. You should not use RMAN binary
compression andmedia manager compression together.
Some CPU overhead is associated with compressing backup sets. If the target database is running at or
near its maximum load, then you may find the overhead unacceptable. In most other circumstances,
compressing backup sets saves enough disk space to be worth the CPU overhead.
SECTION SIZE sizeSpec Specifies the size of each backup section produced during a data file backup.
By setting this parameter, RMAN can create a multisection backup. In a multisection backup, RMAN
creates a backup piece that contains one file section, which is a contiguous range of blocks in a file. All
sections of a multisection backup are the same size. You can create a multisection backup for a data file,
but not a data file copy.
File sections enable RMAN to create multiple steps for the backup of a single large data file.
RMAN channels can process each step independently and in parallel, with each channel producing one
section of a multisection backup set.
If you specify a section size that is larger than the size of the file, then RMAN does not use multisection
backup for the file. If you specify a small section size that would produce more than 256 sections, then
RMAN increases the section size to a value that results in exactly 256 sections.
Depending on where you specify this parameter in the RMAN syntax, you can specify different section
sizes for different files in the same backup job.
Note: You cannot use SECTION SIZE with MAXPIECESIZE or with INCREMENTAL LEVEL 1.2018-0401T21:58:00.52
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