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Oracle 1z1-076 Exam Syllabus Topics:

Topic	Details
Topic 1	Creating a Logical Standby Database: This topic guides users through the process of creating and managing a logical standby database, including SQL Apply filtering.
Topic 2	Patching and Upgrading Databases in a Data Guard Configuration: This section provides guidance on patching and upgrading databases in a Data Guard environment, along with performance optimization techniques and monitoring considerations.
Topic 3	Creating a Data Guard Broker Configuration: This section delves into the practical aspects of creating and managing a Data Guard broker configuration, including command-line and Enterprise Manager approaches.
Topic 5	Enhanced Client Connectivity in a Data Guard Environment: This topic focuses on enhancing client connectivity in a Data Guard setup and implementing failover procedures for seamless client redirection. It also covers application continuity to ensure uninterrupted operations during role transitions.
Topic 6	Using Oracle Active Data Guard: Supported Workloads in Read-Only Standby Databases: Here, the usage of physical standby databases for real-time queries is discussed.

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Oracle Database 19c: Data Guard Administration Sample Questions (Q23-Q28):

NEW QUESTION # 23
Which two statements are true regarding asynchronous redo transport in a Data Guard

A. The performance of SQL apply on a logical standby database always improves when using this transport mode.
B. This transport mode satisfies the minimum requirements for Maximum Availability data protection mode.
C. A transaction can commit without waiting for redo to be sent to any standby database in the data guard configuration.
D. Real-time query performance on a physical standby database improves for current read requests when using this transport mode.
E. This transport mode satisfies the minimum requirements for Maximum Performance data protection mode.

Answer: C,E

Explanation:
Asynchronous redo transport is a method where the primary database does not wait for an acknowledgment from the standby database before committing transactions, which helps in minimizing the impact on the primary database's performance (B). This transport mode is associated with the Maximum Performance data protection mode, which prioritizes performance over synchronicity of data between the primary and standby databases (C). While it provides a level of data protection, there could be some data loss in the event of a primary database failure because redo data may not have been transmitted to the standby database at the time of the failure.
References:Oracle Data Guard Concepts and Administration documentation provides detailed explanations of different redo transport modes and their implications on data protection and performance. Asynchronous transport mode's behavior and association with Maximum Performance mode are outlined explicitly.

NEW QUESTION # 24
You are planning to perform block comparison using the dbms comp package:

Which TWO statements are true?

A. You can monitor the progress of an ongoing block comparison operation by querying VS SES SION_LONGOPS.
B. It requires that the DB_LOST_WKITE_protect initialization parameter be enabled.
C. It can be used to detect lost writes and inconsistencies between the primary database and the cascaded standbys.
D. The databases should be at least mounted before block comparison.
E. Logical standby databases can be the target database for the dbms_dbcomp.dbcomp procedure.

Answer: A,D

Explanation:
The DBMS_COMPARISON package, used for comparing and converging data objects within a single database or between databases, requires that the databases involved in the block comparison be at least mounted (A). This allows the procedure to access the data blocks for comparison. Additionally, the progress of long-running operations such as block comparison can be monitored using the dynamic performance view V$SESSION_LONGOPS (D), which provides information on the operation's progress and estimated completion time.
Reference:
Oracle Database PL/SQL Packages and Types Reference provides comprehensive details on the DBMS_COMPARISON package, including its procedures and how to monitor their progress. Additionally, Oracle Database Reference explains the V$SESSION_LONGOPS view, which is commonly used for monitoring long operations in the database.

NEW QUESTION # 25
Examine the Data Guard configuration:

Which three will be true after a successful failover to Cats?

A. The configuration will be in Maximum Performance mode.
B. Sheep will be in the disabled state.
C. Sheep will be in the enabled state.
D. The configuration will be in Maximum Availability mode.
E. Dogs will be in the disabled state and has to be manually reinstated.

Answer: C,D,E

Explanation:
After a successful failover to the 'cats' database in a Data Guard configuration:
* B: Sheep, being another standby database, would typically remain in the enabled state unless specifically disabled or if there was a configuration issue.
* D: Dogs, which was the primary database prior to failover, will be in a disabled state as part of the failover process. Manual intervention is required to re-establish 'dogs' as a standby database or to return it to the primary role through another role transition.
* E: If the configuration was in Maximum Availability mode before failover, it would remain in this mode after failover, provided all settings were properly configured and no changes were made to the protection mode.
Option A is incorrect because failover does not automatically change the protection mode to Maximum Performance. The protection mode remains as it was prior to the failover unless manually altered.
References: The behavior of Oracle Data Guard during failover and the resulting configuration state is described in the Oracle Data Guard Broker documentation.

NEW QUESTION # 26
Which three are true concerning database states after a successful switchover?

A. If the former primary database became a logical standby database it will be open read-write.
B. If the former primary database became a logical standby database it will be in mount state.
C. If the former primary database became a physical standby database it will always be open readonly.
D. The former primary database will always be open.
E. The new primary database will be open read-write.
F. If the former primary database became a physical standby database it will be in the same state as the former physical standby database.

Answer: A,E,F

Explanation:
After a successful switchover operation in a Data Guard environment, the new primary database (the former standby) will be open read-write (option A). If the former primary database transitions to a logical standby database, it will also be open read-write (option C), allowing it to apply redo data while servicing read-only queries. The former primary, if converted to a physical standby, will adopt the state that the former physical standby database was in prior to the switchover, which can vary based on the configuration prior to the switchover (option D). The state of a physical standby database can range from mounted to open read-only, depending on whether Real-Time Query was enabled. Thus, the exact state will depend on the pre-switchover setup. It's also essential to highlight that options B and E suggest specific states for a former primary turned logical standby, and a former primary turned physical standby, respectively, but these states are not fixed and depend on the configurations set up by the database administrators. Reference: The answers are corroborated by Oracle's documentation on Data Guard switchovers, specifically in the Oracle Data Guard Concepts and Administration guide, which explains the roles and states of databases in a Data Guard configuration before and after switchovers.

NEW QUESTION # 27
Which FOUR database parameters might be affected by or influence the creation of standby databases?

A. COMPATIBLE
B. DB_NAME
C. db_file_name_convert
D. STANDBY_ARCHIVE_DEST
E. FALSERVER
F. ARCHIVE_LAG_TARGET

Answer: A,B,C,D

Explanation:
* DB_NAME (A): The name of the database, which should remain consistent across the primary and standby databases.
* db_file_name_convert (C): This parameter helps define the mapping of data file names from the primary to the standby database, which is crucial during the creation and operation of a standby database.
* COMPATIBLE (D): The compatibility level can influence the features that can be used on the standby database and must be consistent with or higher than that of the primary database, especially after upgrades.
* STANDBY_ARCHIVE_DEST (F): This parameter specifies the destination of archived redo log files on the standby database, which is important for log transport and apply services.
References:
* Oracle Data Guard Concepts and Administration Guide
* Oracle Database Reference

NEW QUESTION # 28
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Get First-grade 1z1-076 Latest Dumps Sheet and Pass Exam in First Attempt

Oracle 1z1-076 Exam Syllabus Topics:

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Oracle Database 19c: Data Guard Administration Sample Questions (Q23-Q28):

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