Oracle 1Z0-066 Free Practice Questions

NEW QUESTION 1
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 2
You must configure an Oracle Data Guard environment consisting of:
1. A primary database
2 Three Physical Standby Databases
You must meet these requirements:
✑ A designated physical standby database should become the primary database automatically whenever the primary database falls
✑ The chosen protection mode should provide the highest level of protection
possible without violating the other requirement
Which redo transport mode and protection mode would you configure to meet these requirements?

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

Answer: D

NEW QUESTION 3
Which two Data Guard monitoring activities may be performed using Enterprise Manager Cloud Control?

• A. monitoring the redo apply rate on a physical standby
• B. monitoring the redo apply rate on a logical standby
• C. monitoring the undo generation rate on a logical standby
• D. monitoring the redo apply rate on a snapshot standby
• E. monitoring the transport lag
• F. monitoring the undo generation rate on the primary

Answer: AE

NEW QUESTION 4
Which two statements are true about Real-Time Query?

• A. Setting STANDBY_MAX_DATA_DELAY =0 requires synchronous redo transport.
• B. Disabling Real-Time Query prevents the automatic start of redo apply when a physical standby database is opened READ ONLY.
• C. Real-Time Query sessions can be connected to a Far Sync instance.
• D. Real-Time Query has no limitations regarding the protection level of the Data Guard environment.
• E. A standby database enabled for Real-Time Query cannot be the Fast-Start Failover target of the Data Guard configuration.

Answer: BD

NEW QUESTION 5
Which two are prerequisites for enabling Automatic Block Media Recovery in a Data Guard environment consisting of a primary database, one physical standby database and one logical standby database?

• A. FLASHBACK DATABASE must be enabled on the physical standby database.
• B. There must be connectivity between the primary and the physical standby database.
• C. FLASHBACK DATABASE must be enabled on the primary database.
• D. The physical standby database must have Real-Time Apply enabled.
• E. The logical standby database must have Real-Time Query enabled

Answer: CD

NEW QUESTION 6
Which four requirements can be met by deploying a logical standby database?

• A. Support for workloads requiring additional indexes.
• B. it can be used to create additional schemas.
• C. it can be used to create additional tables.
• D. It must have the same physical structure as the primary database.
• E. it must provide a disaster-recovery solution that protects all data with capability of performing switchovers and failovers.
• F. Support for workloads requiring additional materialized views.
• G. it can be used for Real Application Testing without affecting the disaster recovery capabilities.

Answer: ACEG

NEW QUESTION 7
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 8
Which two Data Guard monitoring activities may be performed using Enterprise Manager Cloud Control?

• A. monitoring the redo apply rate on a physical standby
• B. monitoring the redo apply rate on a logical standby
• C. monitoring the undo generation rate on a logical standby
• D. monitoring the redo apply rate on a snapshot standby
• E. monitoring the transport lag
• F. monitoring the undo generation rate on the primary

Answer: AE

NEW QUESTION 9
Which two are true about the use of RMAN recovery catalogs when offloading backups to a physical standby database?

• A. It backups that are offloaded to a physical standby database are taken when not connected to a recovery catalog, then they may still be used for restoration on the primary database.
• B. The physical standby database may be used to register the database in the recovery catalog, if the primary is not registered.
• C. The primary and physical standby databases must be registered separately in the recovery catalog, if a far sync instance is used to route redo to the physical standby database.
• D. It is not necessary to use a recovery catalog unless a far sync instance is used to route redo to the physical standby database.
• E. Primary and physical standby database may use different virtual recovery catalogs in the same physical recovery catalog

Answer: DE

NEW QUESTION 10
Your Data Guard environment consists of these components and settings:
1. A primary database
2. A remote physical standby database
3. Real-time query is enabled
4. The redo transport mode is set to SYNC.
5. The protection mode is set to Maximum Availability.
You notice that queries executed on the physical standby database receive errors: ORA- 03172: STANDBY_MAX_DATA_DELAY of 15 seconds exceeded. Which two would you recommend to avoid this error?

• A. Change the protection mode to Maximum Performance.
• B. Increase the size of the buffer cache on the standby database instance.
• C. Reduce I/O latency for the storage used by the primary database.
• D. Change the protection mode to Maximum Protection.
• E. Increase the network bandwidth between the primary and standby databases
• F. Increase the number of standby redo log files on the primary database

Answer: AE

NEW QUESTION 11
Which three are always benefits of using a logical standby database?

• A. it can be used for database rolling release upgrades
• B. it can be used to replicate a single pluggable database (PDB) in a multitenant container database.
• C. It can be used as an updatable database for Real Application testing and then converted back to a standby database without affecting the updates.
• D. It can be used for reporting workloads requiring additional indexes or materialized views or both.
• E. It provides a disaster-recovery solution with switchover and failover options that can recover any data updated on the primary database.
• F. it can be used for testing patches without affecting the primary database.

Answer: CDF

NEW QUESTION 12
After converting your physical standby database to a logical database, you get an error:

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 13
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

NEW QUESTION 14
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 15
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 16
In which two cases is it possible to change the protection mode to maximum protection using Enterprise Manager Cloud Control?

• A. a snapshot standby database is the only standby database in the Data Guard configuration.
• B. A logical standby database is the only standby database in the data guard configuration.
• C. A far sync instance is the only Data Guard configuration member receiving redo in synchronous mode.
• D. Flashback is not enabled for either the primary database, the standby database, or both in the Data Guard configuration.
• E. The primary and standby databases are hosted on different operating systems.

Answer: BE

NEW QUESTION 17
Which two are true about the usage of DBMS_ROLLING?

• A. The leading group contains the original primary database.
• B. The trailing group contains the original primary database.
• C. The background process DMON must be enabled on all database instances that take part in the rolling release upgrade process.
• D. At least one logical standby database must be part of the initial Data Guard configuration
• E. The trailing group can contain standby databases that will protect the original primary database during the rolling release upgrade process.

Answer: DE

NEW QUESTION 18
You have a Data Guard Broker configuration called Somewhere' as shown:

Which two are true about the output of this DGMGRL command?

• A. A far sync instance cannot have inconsistent properties because it has no database.
• B. It shows all properties whose broker configuration values for database Nearby are inconsistent with the broker configuration values for database Farout.
• C. It shows all properties whose broker configuration values for database Nearby are inconsistent with the values in the corresponding server parameter file or the runtime values for database instance Nearby.
• D. Any inconsistency reported is on an instance-specific basis.

Answer: CD

NEW QUESTION 19
Your Data Guard environment has two remote physical standby databases.
Client applications use the local naming method to define connectivity to the primary database instance.
Which will automatically redirect clients to the new primary database in case of a switchover or failover?

• A. Create a database service on the standby databases; automate the start of the service after a role change, and modify the connection description on the clients to use that service.
• B. Configure a PRIMARY role service on the Primary and Standby and modify the Client connect descriptor to include both Primary and the Standby.
• C. Set the DB_NAME parameter identically on all databases; modify the connection descriptor on the clients to use DB_NAME to connect to the primary database instance.
• D. Set the LOCALJJSTENER parameter for all the database instances, to register services with the default listener on the primary database host.

Answer: C