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Oracle 1z0-076 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

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 3

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 4

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 6

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 7

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 8

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 9

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 10

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 12

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.

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Oracle Database 19c: Data Guard Administration Sample Questions (Q59-Q64):

NEW QUESTION # 59
Examine the Data Guard configuration after an accidental switchover to Sheep:
DGMGRL> show configuration;
Configuration - Animals
Protection Mode: MaxAvailability
Databases:
sheep - Primary database
dogs - Logical standby database
cats - Physical standby database (disabled)
ORA-16795: the standby database needs to be re-created
Fast-Start Failover: DISABLED
Configuration Status:
SUCCESS
Which three statements will be true after a switchover to Dogs?

A. Cats will be a disabled physical standby database that can be manually enabled.
B. Cats will be an enabled physical standby database.
C. Dogs will be the primary database.
D. Sheep will be an enabled logical standby database.
E. Sheep will be a disabled logical standby database.

Answer: A,C,D

NEW QUESTION # 60
You must configure on Oracle Data .......
1. A primary database
2. Three Physical Standby Databases
Examine these requirements:
A designated physical standby database should become the primary database automatically whenever the primary database fails.
2. The chosen protection mode should provide the highest level of protection possible without violating the other requirement.
Which redo transport mode and protection mode would you configure to meet these requirements?

A. ASYNC and Maximum Performance
B. FASTSYNC and Maximum Protection
C. FASTSYNC and Maximum Availability
D. SYNC and Maximum Protection

Answer: C

Explanation:
To meet the requirements of automatic failover and the highest level of protection without data loss, the combination of FASTSYNC redo transport mode and Maximum Availability protection mode is appropriate. FASTSYNC ensures that the performance impact on the primary database is minimized while still providing synchronous transport. Maximum Availability protection mode offers the highest level of data protection without compromising the availability of the primary database. In case of a network failure or a standby failure, the primary will not halt, avoiding disruption to the primary database operations.
Reference
Oracle Data Guard Concepts and Administration guide, which details the different protection modes and their respective levels of data protection and impact on database operations.

NEW QUESTION # 61
Which two statements are true regarding asynchronous redo transport in a Data Guard

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

Answer: A,C

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.
Reference:
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 # 62
You are monitoring your Data Guard broker configuration and issue this set of DGMGRL commands:
DGMGRL> SHOW CONFIGURATION;
Configuration - DRSolution
Protection Mode: MaxPerformance
Databases:
Close_by - Primary database
FS_inst - Far Sync
Far_away - Physical standby database
Fast-Start Failover: DISABLED
Configuration Status:
SUCCESS
What is true concerning this configuration?

A. The Close_by primary database instance forwards redo to the FS_inst Far Sync instance, which forwards the redo in turn to the Far_away physical standby database instance.
B. The Close_by primary database forwards redo to the Far_away physical standby directly and also sends redo to the FS_inst Far Sync instance.
C. The FS_inst Far Sync instance forwards redo to the Far_away physical standby only if the Close_by primary database is not able to do so.
D. The Far Sync instance will not forward redo to the Far_away physical standby because the Protection mode is not MaxProtection.
E. The Far Sync instance will not forward redo to the Far_away physical standby because Fast-Start Failover is disabled.

Answer: A

NEW QUESTION # 63
Which THREE are always benefits of using a logical standby database?

A. It provides a disaster-recovery solution with switchover and failover options that can recover any data updated on the primary database.
B. It can be used for reporting workloads requiring additional indexes or materialized views or both.
C. It can be used for testing patchsets without affecting the primary database.
D. It can be used as an updatable database for Real Application Testing and then converted back to a standby database without affecting the updates.
E. It can be used to replicate a single pluggable database (PDB) in a multitenant container database.
F. It can be used for database rolling release upgrades.

Answer: A,B,F

Explanation:
Logical standby databases are a key feature of Oracle Data Guard and offer several distinct advantages, especially in terms of flexibility for reporting, upgrades, and disaster recovery:
* Disaster-recovery solution with switchover and failover options (A): Logical standby databases provide a robust disaster-recovery solution, ensuring that any data updated on the primary database can be recovered. They support both switchover and failover operations, allowing for smooth role transitions between the primary and standby databases.
* Used for reporting workloads requiring additional indexes or materialized views (B): Logical standby databases can be opened for read-write operations and can have additional indexes or materialized views that are not present in the primary database. This makes them ideal for offloading reporting and querying workloads from the primary database.
* Database rolling release upgrades (D): Logical standby databases can be used to perform rolling upgrades of the Oracle Database software. This allows the database to be upgraded with minimal downtime, as the standby database is upgraded first, followed by a switchover to make it the new
* primary.References:
* Oracle Data Guard Concepts and Administration Guide
* Oracle Database High Availability Overview

NEW QUESTION # 64
......

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