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Oracle 1z0-076 Exam Syllabus Topics:

Topic
Details

Topic 1

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 2

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 3

Oracle Data Guard Basics: This topic covers the essential architecture and concepts of Oracle Data Guard. It includes sub-topics such as the physical and logical standby database comparison, benefits of Data Guard, and its integration with multi-tenant databases.

Topic 4

Monitoring a Data Guard Broker Configuration: The topic covers the use of Enterprise Manager and DGMGRL to monitor Data Guard configurations and explains the various data protection modes available.

Topic 5

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 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

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 8

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.

Oracle Database 19c: Data Guard Administration Sample Questions (Q70-Q75):

NEW QUESTION # 70
Examine this validate command:
DGMGRL> VALIDATE DATABASE VERBOSE "<database name>";
Which THREE statements are TRUE?

A. The command performs network connectivity checks between members of a broker configuration.
B. The command can be used for a logical standby database.
C. The command uses information available in various Oracle Data Guard views as well as the Automatic Diagnostic Repository.
D. The command performs a comparison of SPFILE entries between the primary database and a specified standby database.
E. The command performs a comprehensive set of database checks prior to a role change.

Answer: A,B,E

Explanation:
The command performs a comprehensive set of database checks prior to a role change (A): The VALIDATE DATABASE command in Data Guard Manager (DGMGRL) is designed to perform an exhaustive check of a specified database's readiness for a role change, such as a switchover or failover.
The command performs network connectivity checks between members of a broker configuration (C): One of the checks includes verifying that the necessary network connectivity exists between the databases in a Data Guard Broker configuration.
The command can be used for a logical standby database (D): The VALIDATE DATABASE command is versatile and can be used for both physical and logical standby databases to ensure their readiness for role changes.
Reference:
Oracle Data Guard Broker documentation
Oracle Data Guard Concepts and Administration Guide

NEW QUESTION # 71
Which TWO are benefits of using Transaction Guard in a Data Guard environment?

A. It protects against recoverable errors during a planned or an unplanned outage of a primary database.
B. It provides application continuity by replaying transactions interrupted by a failover or a switchover
C. It protects against user errors being replicated to standby databases.
D. It provides application continuity by rolling back uncommitted transactions interrupted by a failover or switchover.
E. It protects against logical corruptions being replicated to standby databases.

Answer: A,D

Explanation:
Transaction Guard provides benefits in terms of transaction consistency and recovery in a Data Guard environment:
* It provides application continuity by rolling back uncommitted transactions interrupted by a failover or switchover (B): Transaction Guard ensures that any uncommitted transactions at the time of an outage are rolled back consistently, thus preserving the integrity of the application's data and state.
* It protects against recoverable errors during a planned or an unplanned outage of a primary database (D): Transaction Guard offers protection against errors that can occur during outages, allowing applications to resume operations more quickly and reliably after recovery.References:
* Oracle Database High Availability Overview
* Oracle Real Application Clusters Administration and Deployment Guide

NEW QUESTION # 72
Which two are true about the use of RMAN recovery catalogs when offloading backups to a physical standby database?

A. The physical standby database may be used to register the database in the recovery catalog, if the primary is not registered.
B. 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.
C. It is not necessary to use a recovery catalog unless a far sync instance is used to route redo to the physical standby database.
D. Primary and physical standby databases may use different virtual recovery catalogs in the same physical recovery catalog.
E. 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.

Answer: D,E

NEW QUESTION # 73
Which three are true regarding prerequisites for a logical standby database as a disaster recovery solution?

A. Ensure that flashback is enabled on the primary database.
B. Ensure that no BFILE LOB data types are contained in the primary database.
C. Do not perform any nologging operations on the primary.
D. Ensure that supplemental logging is enabled on the primary database.
E. Ensure that no ROWID data types are contained in the primary database.

Answer: B,C,D

NEW QUESTION # 74
You created a physical standby database prodsbyi from the primary database prod using SQL and RMAN. Which THREE are prerequisites for creating a Data Guard Broker configuration to manage these databases?

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

Answer: A,B,F

Explanation:
When setting up a Data Guard Broker configuration for a primary database and its physical standby, the following prerequisites must be met:
A: Oracle Net connectivity must be defined on both the primary and standby hosts to enable the respective database instances to communicate with each other.
B: Supplemental logging is required on the primary database because it provides additional logging necessary for the standby database to be able to apply changes from the primary database accurately.
F: The DG_BROKER_START parameter must be set to TRUE for both the primary and standby database instances. This parameter is used to start the Data Guard Broker process which manages the configuration.
Options C and D are not prerequisites for creating a Data Guard Broker configuration. Additionally, while FORCE LOGGING mode (option E) is recommended as a best practice to prevent possible data inconsistencies during media recovery, it is not a strict prerequisite for creating a Data Guard Broker configuration.

NEW QUESTION # 75
......

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