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Oracle 1z0-076 Exam Syllabus Topics:

Topic	Details
Topic 1	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 3	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 5	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 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.
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.
Topic 8	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 9	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 10	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 11	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 12	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 13	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 (Q66-Q71):

NEW QUESTION # 66
Your Data Guard environment consists of these components and settings:
1. A primary database
2. A remote physical standby database
3. Real-time query is enabled.
4. The redo transport mode is set to SYNC.
5. The protection mode is set to Maximum Availability.
You notice that queries executed on the physical standby database receive errors: ORA-03172: STANDBY_MAX_DATA_DELAY of 15 seconds exceeded. Which two would you recommend to avoid this error?

A. Increase the number of standby redo log files on the primary database.
B. Increase the size of the buffer cache on the standby database instance.
C. Increase the network bandwidth between the primary and standby databases.
D. Change the protection mode to Maximum Performance.
E. Reduce I/O latency for the storage used by the primary database.
F. Change the protection mode to Maximum Protection.

Answer: C,E

Explanation:
The ORA-03172: STANDBY_MAX_DATA_DELAY error indicates that the real-time query on the physical standby database is experiencing delays beyond the specified maximum data delay threshold. Increasing the network bandwidth (Option E) can enhance the speed at which redo data is transferred from the primary to the standby database, thereby reducing the likelihood of exceeding the STANDBY_MAX_DATA_DELAY threshold. Reducing I/O latency on the primary database's storage (Option B) ensures that redo data is generated and shipped more efficiently, further mitigating the risk of delay. These actions, focused on optimizing data transfer and processing speed, address the root causes of the ORA-03172 error in a synchronous Data Guard configuration operating in Maximum Availability mode.

NEW QUESTION # 67
Which three Data Guard monitoring activities may be performed using Enterprise Manager Cloud Control?

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

Answer: B,D,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.
Reference:
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 # 68
Which THREE are true about using flashback database in a Data Guard environment?

A. When a flashback database operation is performed on a primary database, a logical standby database is also flashed back automatically.
B. It may be used to flash back a physical standby that receives redo from a far sync instance.
C. When a flashback database operation is performed on a primary database, a physical standby database is also flashed back automatically.
D. It may not be used to flash back a primary database after a failover to a physical standby.
E. You can use it when real-time apply is enabled in case the phylt may not be used to flash back a primary database after a failover to a logical standby.
F. You can use it when real-time apply is enabled in case the physical standby suffers from logical corruption.

Answer: B,D,F

NEW QUESTION # 69
Which two are prerequisites for configuring flashback database for Oracle 19c databases, in a Data Guard environment?

A. The database must be in ARCHTVELOG mode.
B. A far sync instance must be configured to flash back a standby when the primary has been flashed back.
C. A fast recovery area must be configured.
D. The Data Guard real-time apply feature must be enabled.
E. The data guard broker must be used.

Answer: A,C

Explanation:
A fast recovery area must be configured (B): Flashback Database requires a fast recovery area to be set up because flashback logs are stored there. The fast recovery area is a unified storage location for all recovery-related files and activities.
The database must be in ARCHIVELOG mode (C): Flashback Database operation relies on the ability to archive redo logs. Therefore, the database must be running in ARCHIVELOG mode for Flashback Database to be enabled.
Reference:
Oracle Database Backup and Recovery User's Guide
Oracle Data Guard Concepts and Administration Guide

NEW QUESTION # 70
Which three are prerequisites for using Data Guard Broker?

A. The primary and standby databases must run the same version of the Oracle Database server.
B. 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.
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. A statically defined listener end-point must be registered with the local listener on the servers hosting the standby database instances.
F. Network connectivity to the primary database instance must be defined on the servers hosting the standby database instances.

Answer: A,B,F

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 # 71
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