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Oracle 1z1-076 Exam Syllabus Topics:

Topic	Details
Topic 1	Managing Oracle Net Services in a Data Guard Environment: The section focuses on Oracle Net Services and its role in Data Guard networking setup.
Topic 2	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 3	Performing Role Transitions: Here, the concept of database roles is explained, along with the steps for performing switchovers, failovers, and maintaining physical standby sessions during role transitions.
Topic 4	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.
Topic 5	Managing Physical Standby Files After Structural Changes on the Primary Database: The topic covers managing structural changes in the primary database and their impact on physical standby files.
Topic 6	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 7	Creating a Logical Standby Database: This topic guides users through the process of creating and managing a logical standby database, including SQL Apply filtering.

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Oracle Database 19c: Data Guard Administration Sample Questions (Q63-Q68):

NEW QUESTION # 63
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. Dogs will be in the disabled state and has to be manually reinstated.
C. Sheep will be in the enabled state.
D. Sheep will be in the disabled state.
E. The configuration will be in Maximum Availability mode.

Answer: B,C,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.

NEW QUESTION # 64
Which THREE statements are TRUE about the supported workload in Active Data Guard standby databases?

A. You might have to use sequences with global temporary tables to support read-mostly applications by using Active Data Guard.
B. Read-mostly reporting applications that use global temporary tables for storing temporary data can be offloaded.
C. The DML operations on a standby can be transparently redirected to and run on the primary database
D. PL/SQL blocks that you run on Active Data Guard standby databases can be always redirected to and run on the primary database.
E. The DDL operations on private temporary tables are transparently redirected to the primary database.

Answer: A,B,C

Explanation:
In an Oracle Active Data Guard environment:
* B: Read-mostly reporting applications that utilize global temporary tables to store session-specific data can be effectively offloaded to an Active Data Guard standby database, reducing the load on the primary database.
* C: Sequences can be used with global temporary tables on an Active Data Guard standby database to support certain types of read-mostly applications, though some restrictions on sequence use may apply.
* E: In Oracle Database 19c and later, DML redirection allows DML operations performed on an Active Data Guard standby database to be transparently redirected to the primary database. This is part of the DML Redirection feature.
Option A is incorrect because not all PL/SQL blocks run on an Active Data Guard standby database can be redirected to the primary database. Some PL/SQL executions, specifically those that would attempt to make changes to the database, are not supported on the standby.
Option D is incorrect because DDL operations on private temporary tables are not redirected; instead, private temporary tables are session-specific and are not persisted on disk, so they do not generate redo and are not applicable to an Active Data Guard standby.
References: The behavior and capabilities of Active Data Guard standby databases are documented in the Oracle Data Guard Concepts and Administration guide and the Active Data Guard documentation.

NEW QUESTION # 65
Which TWO statements correctly describe the behavior of Automatic Block Media Recovery in a Data Guard environment, for a corrupt block in the example tablespace encountered by a session logged in as the SH user?

A. A corrupt block on a standby database with Real-Time Query enabled, can be automatically recovered, using a block from the primary database.
B. A corrupt block on the primary database is automatically recovered, using a block from a flashback log from the primary database.
C. A corrupt block on the primary database is automatically recovered, using a block from a flashback log from a standby database with Real-Time Query enabled.
D. A corrupt block on the primary database can be automatically recovered, using a block from a standby database with Real-Time Query enabled.
E. A corrupt block on a standby database with Real-Time Query enabled, is automatically recovered, using flashback logs from the standby database.

Answer: B,D

Explanation:
Automatic Block Media Recovery can be a significant feature for maintaining data integrity within a Data Guard configuration.
* A corrupt block on the primary database can be automatically recovered, using a block from a standby database with Real-Time Query enabled (A): When a corrupted block is encountered on the primary database, Oracle can automatically replace it with a good block from the standby database where Real-Time Query is enabled, leveraging the standby as a source of good data.
* A corrupt block on the primary database is automatically recovered, using a block from a flashback log from the primary database (E): If a good block version is available in the flashback logs of the primary database, Automatic Block Media Recovery can use it to recover the corrupted block on the primary.References:
* Oracle Database Backup and Recovery User's Guide

NEW QUESTION # 66
Examine the Data Guard configuration:

What happens if you issue "switchover to sheep;" at the DGMGRL prompt?

A. The switchover succeeds but Dogs needs to be reinstated.
B. The switchover succeeds and Dogs becomes the new failover target.
C. It results in an error indicating that a switchover is not allowed.
D. The switchover succeeds and Cats becomes the new failover target.
E. The switchover succeeds and Fast-Start Failover is suspended.

Answer: B

Explanation:
When issuing a "switchover to sheep;" command in a Data Guard configuration, the primary database (Dogs) transitions to a standby role, and the target standby database (Sheep) becomes the new primary database.
Fast-Start Failover (FSFO) remains enabled, but its target changes according to the new roles of the databases.
Since Cats is also a physical standby database, it does not become the failover target by default unless it is specified in the broker configuration. After the switchover, the original primary (Dogs) becomes the new standby database and thus the new failover target for FSFO.References:Oracle Data Guard Broker documentation provides detailed procedures and explanations of switchover operations, including how FSFO targets are affected post-switchover. This behavior is consistent across different Oracle Database versions that support Data Guard and FSFO.

NEW QUESTION # 67
Which four requirements can be met by deploying a logical standby database?

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

Answer: C,E,F,G

Explanation:
A logical standby database is part of Oracle Data Guard and allows the standby database to be open for read-write operations, providing additional flexibility. The requirements met by a logical standby database include:
* Support for workloads requiring additional materialized views (A): Logical standby databases can support materialized views, allowing for complex data summarization and reporting workloads.
* It can be used to create additional tables (C): Unlike physical standby databases, logical standby databases allow for the creation of additional tables that do not exist in the primary database, enabling custom workloads and reporting.
* It can be used for Real Application Testing without affecting the disaster recovery capabilities (E):
Logical standby databases can be used to test application changes, patches, and upgrades while still maintaining their role as part of the disaster recovery strategy.
* Support for workloads requiring additional indexes (F): Logical standby databases allow for the creation of additional indexes to optimize query performance for reporting and analytical workloads.
References:
* Oracle Data Guard Concepts and Administration
* Oracle Database High Availability Overview

NEW QUESTION # 68
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Free PDF Oracle - 1z1-076 - Fantastic Oracle Database 19c: Data Guard Administration Valid Dump

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Free PDF Oracle - 1z1-076 - Newest Oracle Database 19c: Data Guard Administration Valid Dump

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