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Exam Oracle 1z1-076 Collection | 1z1-076 Complete Exam Dumps

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Exam Oracle 1z1-076 Collection | 1z1-076 Complete Exam Dumps

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Oracle Database 19c: Data Guard Administration Sample Questions (Q84-Q89):NEW QUESTION # 84
You created the PRODSBY1 physical standby database for the PROD primary database using gql and RMAN.
You are planning to create a Data Guard Broker configuration. You execute the command:

Which three statements are true regarding the execution of the command?
  • A. The PRODSBY1 standby database is automatically added to the configuration if DG_BROKER_START is TRUE for PRODSBYl.
  • B. The command will execute successfully only if Oracle Net connectivity to the PROD database instance is defined on the primary host.
  • C. The command will execute successfully only if Oracle Net connectivity to the PROD and PRODSBYl database instances are defined on the primary host.
  • D. The Data Guard Broker configuration files is automatically created in the destinations specified by the DG_BROKER_CONFIG_FILEn initialization parameters on the primary database.
  • E. The PRODSBYI standby database is automatically added to the configuration if Oracle Net connectivity to the PRODSBYl database instance is defined on the primary host.
  • F. The command will execute successfully only if the DG_BROKER_START initialization parameter is set to TRUE for the PROD database instance.
Answer: B,D,F
Explanation:
The command executed (CREATE CONFIGURATION 'DGConfig' AS PRIMARY DATABASE IS ' PROD' CONNECT IDENTIFIER IS PROD;) is used to create a Data Guard Broker configuration named
'DGConfig'. The successful execution of this command depends on several conditions:
* A: The DG_BROKER_START parameter must be set to TRUE on the primary database to start the Data Guard Broker processes. Without the broker processes running, the configuration cannot be created.
* D: Oracle Net connectivity to the PROD database instance must be established on the primary host. This is because the Data Guard Broker requires network accessibility to communicate with the primary database and manage the configuration.
* E: When the configuration is created, the Data Guard Broker configuration files are indeed automatically created in the locations specified by the DG_BROKER_CONFIG_FILEn parameters on the primary database.
It's important to note that the command will not automatically add the PRODSBY1 standby database to the configuration (thus B and C are not correct), and there is no requirement for the standby database to have Oracle Net connectivity defined on the primary host for the execution of this command (making F incorrect as well).
References: This information can be validated in Oracle's Data Guard Broker documentation, which outlines the requirements for setting up and managing a Data Guard configuration using the Data Guard Broker.

NEW QUESTION # 85
You are licensed to use Oracle Active Data Guard.
Which TWO statements are true after enabling block change tracking on a physical standby database?
  • A. It allows fast incremental backups to be offloaded to the physical standby database.
  • B. It allows fast incremental backups to be offloaded to a snapshot standby database, when the physical standby database is converted.
  • C. It starts the RVWR process on the physical standby database instance.
  • D. It allows fast incremental backups to be taken on the primary database.
  • E. It starts the CTWR process on the physical standby database instance.
  • F. It starts the CTWR process on the primary database instance.
Answer: A,C
Explanation:
Block change tracking is a feature that enhances the efficiency of incremental backups by recording changed blocks in a tracking file. When used with Oracle Active Data Guard:
* It starts the RVWR process on the physical standby database instance (A): When block change tracking is enabled on a physical standby database, the Recovery Writer (RVWR) process is initiated.
This process is responsible for recording the changes to blocks in the block change tracking file, which is then used to optimize incremental backups.
* It allows fast incremental backups to be offloaded to the physical standby database (E): With block change tracking enabled on the physical standby database, fast incremental backups can be offloaded from the primary database. This reduces the workload on the primary database and utilizes the standby database for backup operations, improving overall system performance and efficiency.References:
* Oracle Database Backup and Recovery User's Guide
* Oracle Active Data Guard documentation

NEW QUESTION # 86
Examine the Data Guard configuration: DGMGRL> show configuration;
Configuration - Animals
Protection Mode: MaxPerformance
Databases:
dogs- Primary database
sheep - Physical standby database
cats- Snapshot standby database
Fast-Start Failover: DISABLED
Configuration Status: SUCCESS
You receive an error while attempting to raise the protection mode to Maximum Protection:
DGMGRL> edit configuration set protection mode as maxprotection;
Error: ORA-16627: operation disallowed since no standby databases would remain to support protection mode Failed.
What can you conclude based on this error?
  • A. The redo transport mode is set to async for the standby database Sheep.
  • B. Cats is a snapshot standby database.
  • C. The redo transport mode is set to asyn: for the standby database Cats.
  • D. The redo transport mode is set to async for both standby databases.
Answer: B
Explanation:
Comprehensive Detailed Explanation:
In an Oracle Data Guard environment, the Maximum Protection mode requires that all redo data be transmitted synchronously to at least one standby database, ensuring no data loss even in the event of a primary database failure. However, a snapshot standby database, by its nature, allows read-write access and is temporarily disconnected from the redo stream, which makes it unable to participate in the synchronous redo transport required by Maximum Protection mode. The presence of a snapshot standby database in the Data Guard configuration thus prevents the activation of Maximum Protection mode, as it cannot guarantee zero data loss without a standby database capable of receiving redo data synchronously.
Reference:
Oracle Data Guard documentation clearly outlines the requirements and restrictions of different protection modes, including the necessity for standby databases to participate in synchronous redo transport to enable Maximum Protection mode. The inability of snapshot standby databases to fulfill this requirement is a key consideration when planning Data Guard configurations and protection levels.
Explanation:
The error indicates that switching the protection mode to Maximum Protection is not possible due to the presence of a snapshot standby database in the Data Guard configuration, which cannot participate in synchronous redo transport required by the Maximum Protection mode. Therefore, the correct answer is:

NEW QUESTION # 87
Which TWO are TRUE about offloading backups to a physical standby database in a Data Guard environment?
  • A. The standby database can not be registered in an RMAN catalog if the primary database has not been registered.
  • B. The standby database must be registered in an RMAN catalog before the primary database has been registered.
  • C. The standby database must be registered in an RMAN catalog after the primary database has been registered.
  • D. Backups of the standby control file taken while connected to the catalog where the database is registered, may be used to restore the control file on the primary database.
Answer: C,D
Explanation:
In a Data Guard environment, offloading backups to a physical standby database has certain requirements:
* A: Once the primary database is registered in an RMAN catalog, the standby database can also be
* registered. This allows RMAN to manage backups coherently across both databases and leverage the standby database for backup purposes without interfering with the primary database's workload.
* C: Backups of the standby control file taken while connected to the catalog where the database is registered can be used to restore the control file on the primary database. This ensures that backup metadata is consistent across the Data Guard configuration.
Options B and D are incorrect because there is no strict requirement for the order in which the primary and standby databases must be registered in an RMAN catalog. However, it is a common practice to register the primary database first.
References: The Oracle Database Backup and Recovery User's Guide provides detailed procedures on how to manage RMAN backups in a Data Guard environment, including offloading backups to a standby database.

NEW QUESTION # 88
You are using Data Guard in conjunction with Global Database Services.
You have a Data Guard Broker configuration called Sales and a GDS pool called Prod.
Which three are true concerning the management of the broker configuration when using GDS?
  • A. Adding a database to the Sales configuration with DGMGRL automatically adds the database to the Prod Pool.
  • B. DGMGRL may be used to add a single database to the Sales configuration even if Sales is a member of the Prod pool.
  • C. DGMGRL may be used to add the Sales configuration to the Prod pool in gds.
  • D. Adding a database to the Sales configuration with DGMGRL requires that the Sales configuration be disabled first. It must then be enabled after the new database is added to the configuration.
  • E. Performing a role change with DGMGRL automatically notifies GDS which in turn activates the appropriate services.
Answer: B,C,E
Explanation:
In the context of Oracle Data Guard and Global Database Services (GDS):
* DGMGRL may be used to add the Sales configuration to the Prod pool in gds (A): Data Guard Broker's command-line interface DGMGRL can be utilized to manage configurations with GDS, allowing the addition of Data Guard Broker configurations to GDS pools.
* Performing a role change with DGMGRL automatically notifies GDS which in turn activates the appropriate services (B): When a role change is executed using DGMGRL, GDS is automatically notified, and it then activates the services that are appropriate for the new database roles.
* DGMGRL may be used to add a single database to the Sales configuration even if Sales is a member of the Prod pool (C): DGMGRL provides the capability to manage individual databases within a broker configuration, including adding databases to a configuration that is already part of a GDS pool.References:
* Oracle Data Guard Broker documentation
* Oracle Global Data Services documentation

NEW QUESTION # 89
......
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