Oracle 1Z0-066 Free Practice Questions 2019

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NEW QUESTION 1
A data file on one of your physical standby databases has been accidentally deleted and you must restore and recover it. All the archive logs required for recovery are still on disk in the directory pointed to by the log_archive_dest_1 parameter Which three steps must be performed to restore the missing file and recover the standby database while it is in the MOUNT state?

  • A. Recover the datafile by using the RMAN RECOVER DATAFILE command
  • B. Restart the redo apply.
  • C. Restore the datafile by using the RMAN RESTORE DATAFILE command.
  • D. Stop the redo apply.
  • E. Recover the database by using the RMAN RECOVER DATABASE command.

Answer: CDE

NEW QUESTION 2
You must configure an Oracle Data Guard environment consisting of:
1. A primary database
2 One Physical Standby Database
3. One Logical Standby Database You must meet these requirements:
1. Primary database availability should not be compromised by the availability of the standby databases.
2. Under normal operations, transactions executed on the primary database should not commit before redo is written to disk on both the primary database and at least one standby database.
Which redo transport mode and which protection mode would you configure to meet these requirements?

  • A. SYNC AFFIRM and Maximum Protection
  • B. SYNC NOAFFIRM and Maximum Protection
  • C. SYNC AFFIRM and Maximum Availability
  • D. SYNC NOAFFIRM and Maximum Availability
  • E. ASYNC and Maximum Performance

Answer: C

NEW QUESTION 3
Which three statements are true about standby redo logs in a Data Guard configuration with no Oracle Streams or Goldengate configured?

  • A. They are required on a logical standby for real-time apply
  • B. They are required only for synchronous redo transport.
  • C. Only standby databases can write redo to them.
  • D. It is recommended to have them on the primary database.
  • E. They are required on a physical standby for real-time apply.
  • F. The LGWR process writes to them on a standby database.

Answer: ACE

NEW QUESTION 4
You created a physical standby database PRODSBY1 from the primary database PROD using SQL and RMAN Which two are prerequisites for creating a Data Guard Broker configuration to manage these databases?

  • A. The standby database must have supplemental logging enabled.
  • B. The primary database must have FORCE LOGGING enabled
  • C. The DG_BROKER_START parameter must be set to TRUE for both database instances.
  • D. The primary database must have supplemental logging enabled.
  • E. A local net service name to enable connectivity to the PRODSBY1 database instance must be defined on the primary database host.

Answer: BC

NEW QUESTION 5
You must configure an Oracle Data Guard environment consisting of:
1. A primary database
2. A Physical Standby Database
3. A Snapshot Standby Database You must meet these requirements:
1. Primary database availability should not be compromised by the availability of the standby databases.
2. Under normal operations, transactions executed on the primary database should not commit before redo is written to disk on the primary database and on at least one standby database.
Which redo transport mode, and which protection mode should you configure to meet these
requirements?

  • A. SYNC AFFIRM and Maximum Protection
  • B. SYNC NOAFFIRM and Maximum Protection
  • C. SYNC AFFIRM and Maximum Availability
  • D. SYNC NOAFFIRM and Maximum Availability
  • E. ASYNC and Maximum Performance

Answer: C

NEW QUESTION 6
Which three types of backups taken in which situations may be used to perform restore operations to a logical standby database in a Data Guard environment?

  • A. backups of data files taken on the primary database if connected to the recovery catalog where the logical standby database is registered
  • B. backups of data files taken on the standby database if connected to the recovery catalog where the logical standby database is registered
  • C. backups of control files taken on the primary database if connected to the recovery catalog where the logical standby database is registered
  • D. backups of data files taken on the logical standby database, if not connected to arecovery catalog
  • E. backups of control files taken on the logical standby database if not connected to a recovery catalog

Answer: ADE

NEW QUESTION 7
A query on the view DBA_LOGSTBY_UNSUPPORTED on your primary database returns no rows
As a result of this, you decide that an upgrade may use logical standby databases. Which two are true about upgrading Data Guard environments consisting of one logical
standby database running on a separate host from the primary?

  • A. The upgrade always requires downtown until the upgrade of the logical standby is completed
  • B. Using manual upgrade, catctl.pl can be executed in some cases on the primary and standby database simultaneously.
  • C. The upgrade always required downtime until the upgrade of the primary is completed
  • D. Using manual upgrade, catupgr.sql needs to run on the primary database only.
  • E. SQL Apply on the local standby database must be stopped while the primary database is upgraded.
  • F. Fast-Start Failover can be used to protect the primary database during the upgrade.

Answer: BE

NEW QUESTION 8
A data file on one of your physical standby databases has been accidentally deleted and you must restore and recover it. All the archive logs required for recovery are still on disk in the directory pointed to by the log_archive_dest_1 parameter Which three steps must be performed to restore the missing file and recover the standby database while it is in the MOUNT state?

  • A. Recover the datafile by using the RMAN RECOVER DATAFILE command
  • B. Restart the redo apply.
  • C. Restore the datafile by using the RMAN RESTORE DATAFILE command.
  • D. Stop the redo apply.
  • E. Recover the database by using the RMAN RECOVER DATABASE command.

Answer: CDE

NEW QUESTION 9
Which three are true concerning Automatic Block Media Recovery in a Data Guard environment when running an application as an ordinary Oracle user?

  • A. Real Time Query must be enabled on the primary database
  • B. Real Time Query must be enabled on the physical standby database.
  • C. |f a physically corrupt block is discovered on a physical standby database, then a valid block image from the primary database is retrieved.
  • D. If a physically corrupt block is discovered on the primary database, then a valid block image from a physical standby database is retrieved
  • E. if a physically corrupt block is discovered on a logical standby database, then a valid block image from the primary database is retrieved.
  • F. If a physically corrupt block is discovered on a primary database, then a valid block image from the logically standby database is retrieved.

Answer: BCD

NEW QUESTION 10
Which two are true about database roles in an Oracle Data Guard Configuration?

  • A. a configuration consisting only of a primary and one or more physical standby databases can support a rolling release upgrade.
  • B. A Logical Standby Database can be converted to a Snapshot Standby Database.
  • C. A Logical Standby Database can cascade redo to a terminal destination
  • D. A Snapshot Standby Database can be a fast-start failover target
  • E. A Physical Standby Database can be converted into a Logical Standby Database.

Answer: BE

NEW QUESTION 11
After converting your physical standby database to a logical database, you get an error:
1Z0-066 dumps exhibit
How can you rectify the error?

  • A. Add a logical standby database PRODSBY and enable it, thereby replacing the physical standby database metadata in the broker configuration.
  • B. Remove the physical standby database PRODSBY from the broker configuration, add a logical standby database PRODSBY to the broker configuration and enable it.
  • C. Reinstate the physical standby database PRODSBY as a logical standby, thereby replacing the physical standby database metadata in the broker configuration.
  • D. Reinstate both the primary and physical standby databases The broker will automatically detect that PRODSBY is a logical standby update to the metadata.

Answer: D

NEW QUESTION 12
Which two are prerequisites for configuring Transaction Guard in a Data Guard environment?

  • A. Grant execute permission on the DBMS_APP_CONT package to relevant database schema owners
  • B. Create a database service with COMMIT_OUTCOME set to TRUE, and ensure clients use that service to connect to the database instance.
  • C. Ensure that connection descriptors for database clients use the failover clause with the COMMIT_OUTCOME parameter set to TRUE
  • D. Set INSTANCE_NAME identically on all the Data Guard Configuration databases and modify the local service name on the client to include a CONNECTION_LIST containing all the standby hosts.
  • E. Create a database service with COMMIT_OUTCOME set to TRUE and ensure that the service is statically registered with the default listener on the primary host

Answer: AB

NEW QUESTION 13
Examine the Data Guard configuration:
1Z0-066 dumps exhibit
Which three will be true after a switchover to Dogs?

  • A. Sheep will be an enabled logical standby database.
  • B. Cats will be an enabled physical standby database
  • C. Dogs will be the primary database
  • D. Sheep will be a disabled logical standby database
  • E. Cats will be a disabled physical standby database

Answer: BCE

NEW QUESTION 14
Examine this query and its output:
1Z0-066 dumps exhibit
Which are true?

  • A. The observer is not connected to the database on which the query was executed.
  • B. Cats is a bystander database.
  • C. The observer is connected to the database on which the query was executed.
  • D. The observer is currently running on o17.example com
  • E. The observer is not running, but should run on o17 example.com.

Answer: A

NEW QUESTION 15
Which three statements are true about Data Guard configurations?

  • A. All databases in one Data Guard environment must have the same database name.
  • B. VALID_FOR is a LOG_ARCHIVE_DEST_N attribute that enables DB role change operations without having to modify LOG_ARCHIVE_DEST_nwhen performing switchovers or failovers.
  • C. For Standard Edition, LOG_ARCHIVE_DUPLEX_DEST is used to configure redo transport, from the primary to the standby database.
  • D. When using the Data Guard Broker, an spfile is not required.
  • E. Up to 30 physical standby databases may exist within one configuration.
  • F. The Oracle recommendation for the number of standby redo log groups per thread is one more than the number of online redo log groups per thread

Answer: AEF

NEW QUESTION 16
Which four are true about DGMGRL show command?

  • A. It can be used to show properties of a pluggable standby database.
  • B. it can be used to show properties of a pluggable primary database.
  • C. it can be used to show instance-specific properties for a RAC database.
  • D. it can be used to show properties of a far sync instance
  • E. it can be used to show Fast Start Failover properties.
  • F. It can be used to show properties of a primary container database.

Answer: ABEF

NEW QUESTION 17
There are currently 6 APPLIER and 6 PREPARER processes running and no idle APPLIER processes on your logical standby database. The MAX_SERVERS SQL apply parameter and number of archiver processes are both set to 12. Identify two changes, each of which would allow you to increase the number of APPLIER processes.

  • A. Increase the PROCESSES initialization parameter
  • B. Increase the value for the MAX_SERVERS SQL apply parameter.
  • C. Decrease the number of archiver processes on the standby databas
  • D. increase the PARALLEL_MAX_SERVER initialization parameter
  • E. Decrease the number of PREPARER processes
  • F. Increase the RECOVERY_PARALLEUSM initialization parameter

Answer: BE

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