Download Oracle.1z0-067.Lead2Pass.2019-02-04.140q.vcex

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Exam Upgrade Oracle9i/10g/11g OCA OR OCP to Oracle Database 12c OCP
Number 1z0-067
File Name Oracle.1z0-067.Lead2Pass.2019-02-04.140q.vcex
Size 607 KB
Posted Feb 04, 2019
Download Oracle.1z0-067.Lead2Pass.2019-02-04.140q.vcex

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Demo Questions

Question 1

Which two statements are true about scheduling operations in a pluggable database (PDB)?


  1. Scheduler jobs for a PDB can be defined only at the container database (CDB) level.
  2. A job defined in a PDB runs only if that PDB is open.
  3. Scheduler attribute setting is performed only at the CDB level.
  4. Scheduler objects created by users can be exported or imported using Data Pump.
  5. Scheduler jobs for a PDB can be created only by common users.
Correct answer: BD
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.
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?


  1. Set the backup_tape_io_slaves parameter to true.
  2. Set the dbwr_io_slaves parameter to a nonzero value if synchronous I/O is in use.
  3. Configure large pool if not already done.
  4. Remove the rate parameter, if specified, in the allocate channel command.
  5. Always use RMAN compression for tape backups rather than the compression provided by media manager.
  6. Always use synchronous I/O for the database.
Correct answer: BCD
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 Identify Bottlenecks https://docs.oracle.com/database/121/BRADV/rcmtunin.htm#BRADV172
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 Identify Bottlenecks https://docs.oracle.com/database/121/BRADV/rcmtunin.htm#BRADV172



Question 3

For which three pieces of information can you use the RMAN list command?


  1. stored scripts in the recovery catalog
  2. available archived redo log files
  3. backup sets and image copies that are obsolete
  4. backups of tablespaces
  5. backups that are marked obsolete according to the current retention policy
Correct answer: ABD
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
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?


  1. Database Replay
  2. Automatic Database Diagnostic Monitor (ADDM) Compare Period report
  3. Active Session History (ASH) report
  4. SQL Performance Analyzer
Correct answer: B
Explanation:
References: http://docs.oracle.com/cd/E24628_01/server.121/e17635/tdppt_degrade.htm
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?


  1. It can contain a nested chain of jobs.
  2. It can be used to implement dependency-based scheduling.
  3. It cannot invoke the same program or nested chain in multiple steps in the chain.
  4. It cannot have more than one dependency.
  5. It can be executed using event-based or time-based schedules.
Correct answer: ABE
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
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.


  1. 1, 4, 3
  2. 1, 2
  3. 1, 4, 3, 2
  4. 1, 2, 4
Correct 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
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

Which two are prerequisites for setting up Flashback Data Archive?


  1. Fast Recovery Area should be defined.
  2. Undo retention guarantee should be enabled.
  3. Supplemental logging should be enabled.
  4. Automatic Undo Management should be enabled.
  5. All users using Flashback Data Archive should have unlimited quota on the Flashback Data Archive tablespace.
  6. The tablespace in which the Flashback Data Archive is created should have Automatic Segment Space Management (ASSM) enabled.
Correct answer: DF
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.
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 8

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?


  1. Create both jobs by using Scheduler raised events.
  2. Create both jobs using application raised events.
  3. Create one job to rebuild indexes using application raised events and another job to perform bulk load using Scheduler raised events.
  4. Create one job to rebuild indexes using Scheduler raised events and another job to perform bulk load by using events raised by the application.
Correct 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
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 9

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?


  1. C##admin can create and select any table, and grant the c##role1 role to users only in the root container.
  2. B_admin can create and select any table in both the root container and kr_pdb.
  3. c##admin can create and select any table in the root container and all the PDBs.
  4. B_admin can create and select any table only in hr_pdb.
  5. The grant c=»role1 to b_admin command returns an error because container should be set to ALL.
Correct answer: CD



Question 10

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?


  1. It executes successfully and the c##role1 role is revoked from the c##a_admin user only in the root container.
  2. It fails and reports an error because the container=all clause is not used.
  3. It executes successfully and the c##rocl1 role is revoked from the c##a_admin user in the root database and all the PDBs.
  4. It fails and reports an error because the comtainer=current clause is not used.
Correct 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.
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.









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