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Oracle 1z1-076 Exam Syllabus Topics:

Topic
Details

Topic 1

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 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 4

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 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 7

Oracle Data Guard Broker Basics: An overview of the Data Guard broker, its architecture, components, benefits, and configurations, is provided here. It serves as an introduction to the tool used for managing Data Guard configurations.

Topic 8

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 9

Using Flashback Database in a Data Guard Configuration: This topic covers the configuration and advantages of using Flashback Database in a Data Guard setup, as well as the process of enabling fast-start failover for seamless role changes.

Topic 10

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 11

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 12

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 13

Backup and Recovery Considerations in an Oracle Data Guard Configuration: In this topic, Backup and recovery procedures in a Data Guard configuration are discussed, including RMAN backups, offloading to physical standby, and network-based recovery.

Topic 14

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.

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Oracle Database 19c: Data Guard Administration Sample Questions (Q47-Q52):

NEW QUESTION # 47
Which three types of backups offload ........ with the primary database in a data Guard

A. Password files
B. Broker configuration files
C. Archive logs
D. Online logs
E. Control files
F. Data files

Answer: C,E,F

Explanation:
In a Data Guard environment, you can offload the backups of certain database components to a physical standby database. Incremental backups of a standby database are interchangeable with the primary database, meaning you can apply a backup taken on a standby database to a primary database and vice versa. This includes control files, data files, and archive logs. Backups of control files and nonstandby control files are interchangeable. You can restore a standby control file on a primary database and a primary control file on a physical standby database, demonstrating their interchangeability and the ability to offload control file backups to one database in a Data Guard environment.

NEW QUESTION # 48
Which three are prerequisites for using Data Guard Broker?

A. Network connectivity to the primary database instance must be defined on the servers hosting the standby database instances.
B. The primary and standby databases must run the same version of the Oracle Database server.
C. DG_BROKEB_START must be set to TRUE for a database instance before adding the database to the broker configuration.
D. The broker configuration files for a RAC database must reside in shared storage accessible by all the RAC database instances.
E. If any database in the configuration is a RAC database, then the broker configuration files must reside in shared storage accessible by all database instances for all databases in the broker configuration.
F. A statically defined listener end-point must be registered with the local listener on the servers hosting the standby database instances.

Answer: A,B,E

Explanation:
Data Guard Broker is a management tool that simplifies the configuration, management, and monitoring of Data Guard environments. The prerequisites for using Data Guard Broker include:
* The primary and standby databases must run the same version of the Oracle Database server (A):
This ensures compatibility between the primary and standby databases and enables seamless role transitions and data synchronization.
* Network connectivity to the primary database instance must be defined on the servers hosting the standby database instances (B): Proper network connectivity is essential for communication between the primary and standby databases, allowing for the replication of data and the synchronization of changes.
* If any database in the configuration is a RAC database, then the broker configuration files must reside in shared storage accessible by all database instances for all databases in the broker configuration (D): In Real Application Clusters (RAC) environments, shared storage ensures that all instances of the RAC database can access the broker configuration files, facilitating the management of the Data Guard environment across all instances.References:
* Oracle Data Guard Broker documentation
* Oracle Real Application Clusters Administration and Deployment Guide

NEW QUESTION # 49
Which three are true about using Flashback database through role transitions in a Data Guard environment?

A. Flashback database may not be used to undo a physical standby database activation.
B. Physical standby databases retain their current role when you flash back to a point in time before a reinstate occurred which caused this database to become a physical standby.
C. Physical standby databases retain their current role when you flash back to a point in time before the switchover occurred which caused this database to become a physical standby.
D. Logical standby database roles are reverted to their original role when you flash back to a point in time before the switchover occurred which caused this database to become a logical standby.
E. Logical standby databases retain their current role when you flash back through to a point in time before the switchover occurred which caused this database to become a logical standby.

Answer: A,B,C

NEW QUESTION # 50
Which TWO statements are true about Real-Time Query?

A. Disabling Real-Time Query prevents the automatic start of redo apply when a physical standby databases opened read only.
B. A standby database enabled for Real-Time Query cannot be the Fast-Start Failover target of the Data Guard configuration.
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. Setting standby_max_data_delay=0 requires synchronous redo transport.

Answer: A,E

Explanation:
Real-Time Query is a feature that allows queries to be run on a physical standby database while it is applying redo data. The relevant truths about it are:
Setting standby_max_data_delay=0 requires synchronous redo transport (A): For the real-time apply feature to function with no data delay (zero delay), synchronous redo transport must be used. This setting ensures that the data on the standby database is as current as possible before queries are executed against it.
Disabling Real-Time Query prevents the automatic start of redo apply when a physical standby database is opened read-only (C): If Real-Time Query is disabled, opening the standby database in read-only mode will not start the redo apply process automatically. Redo apply needs to be manually started to synchronize the standby database with the primary.
Reference:
Oracle Data Guard Concepts and Administration Guide

NEW QUESTION # 51
Which three Data Guard monitoring activities may be performed using Enterprise Manager Cloud Control?

A. You can set a warning threshold on the redo generation rate metric for a physical standby database.
B. You can monitor the redo apply rate on a logical standby database.
C. You can monitor the redo apply rate on a snapshot standby database.
D. You can check if redo apply needs to be tuned.
E. You can set a critical threshold on the redo generation rate metric for a primary database.
F. You can check the potential data loss in the event of a disaster.

Answer: B,E,F

Explanation:
Enterprise Manager Cloud Control offers comprehensive monitoring capabilities for Oracle Data Guard environments. It enables monitoring the rate at which redo is being applied on a logical standby database (A), which is crucial for ensuring that the standby database is keeping up with the changes from the primary. It also allows setting thresholds on performance metrics, such as the redo generation rate on the primary database (B), to alert administrators when values exceed critical or warning thresholds. Additionally, it provides the capability to estimate the potential data loss in the event of a disaster (E), helping in disaster recovery planning and ensuring business continuity.
References:Oracle Enterprise Manager Cloud Control documentation provides extensive information on its monitoring features for Oracle Data Guard, including setting thresholds, estimating potential data loss, and tracking redo apply rates.

NEW QUESTION # 52
......

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