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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	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 3	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 4	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 5	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 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	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 8	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 9	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 (Q20-Q25):

NEW QUESTION # 20
Which three statements are true about snapshot standby databases?

A. The FATLOVER TO command results in a transition of a snapshot standby database to the primary role.
B. Tablespaces can be created.
C. Tables can be dropped.
D. Tablespaces can be dropped.
E. A logical standby database can be converted into a snapshot standby database.
F. The switchover TO command allows a switchover operation to a snapshot standby database.

Answer: B,C,D

Explanation:
A snapshot standby database is a fully updateable standby database that is created by converting a physical standby database into a snapshot standby database. The main characteristics of a snapshot standby database include:
B: Tablespaces can indeed be dropped in a snapshot standby database because it is updateable and allows all types of DML and DDL operations that do not conflict with the standby role.
C: Tablespaces can be created in a snapshot standby database for the same reasons that they can be dropped; it supports all operations that do not interfere with its standby nature.
E: Tables can be dropped in a snapshot standby database, as it is a fully updateable standby.
Options A and D are incorrect because 'FAILOVER TO' and 'SWITCHOVER TO' commands are not used with snapshot standby databases in these contexts. A failover converts a standby database into the primary role after the original primary has become unavailable, and is not a reversible role transition. Switchover is a planned role reversal between the primary database and one of its standby databases and is not applicable to snapshot standby databases in the context provided.
Option F is incorrect because a logical standby database cannot be converted into a snapshot standby database directly. A logical standby is used for different purposes such as reporting and querying with real-time data, and its structure is different from a physical standby which can be converted into a snapshot standby.

NEW QUESTION # 21
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. SYNC and Maximum Protection
B. ASYNC and Maximum Performance
C. FASTSYNC and Maximum Protection
D. FASTSYNC and Maximum Availability

Answer: D

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.
ReferencesOracle 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 # 22
You must configure an Oracle Data..........
1. A primary database
2. A physical standby database
Examine these requirements: 1. Data loss is not permitted.
1. Data loss is not permitted.
2. It should be possible to convert the physical standby database to a snapshot standby database.
3. Under normal operations, transactions should commit when redo is written to disk on the primary database and as soon as it has been received by the standby database instance.
4. The availability of the primary database should not be compromised by the availability of the standby database.
5. It should be possible to convert the physical standby database to a logical standby database
6. It should be possible to deploy Real Application Clusters on the primary database.
7. It should be possible to deploy Real Application Clusters on the physical standby database.
You configure SYNC redo transport mode in combination with Maximum Protection mode.

A. 1, 2, 3, 6, and 7
B. 1, 2, 3, 4, 5, 6, and 7
C. 1, 2, 6, and 7
D. 1, 6, and 7
E. 1, 2, and 5

Answer: B

Explanation:
When SYNC redo transport mode is combined with Maximum Protection mode, it ensures that no data loss will occur (requirement 1). The physical standby can be converted to a snapshot standby (requirement 2) and later to a logical standby database (requirement 5), satisfying both transformation requirements. Transactions commit as soon as redo data is received by the standby database (requirement 3). The availability of the primary is not dependent on the standby database in Maximum Protection mode, as the primary database will halt if the standby cannot acknowledge the redo (requirement 4), thus indirectly ensuring its availability. It is also possible to deploy Real Application Clusters on both the primary (requirement 6) and the physical standby database (requirement 7), providing high availability and scalability.
ReferencesOracle Data Guard documentation detailing the requirements for different database roles, protection modes, and redo transport modes, as well as the capabilities and limitations of each configuration.

NEW QUESTION # 23
Which THREE are true about using flashback database in a Data Guard environment?

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

Answer: A,B,D

Explanation:
Flashback Database is a feature that allows reverting a database to a previous point in time, which is extremely useful in various Data Guard configurations:
It may be used to flash back a physical standby that receives redo from a far sync instance (C): Flashback Database can be used on a physical standby database to revert it to a past point in time, even when it is receiving redo data from a far sync instance. This can be particularly useful to recover from logical corruptions or unwanted changes.
You can use it when real-time apply is enabled in case the physical standby suffers from logical corruption (D): Even when real-time apply is enabled, which allows redo data to be applied to the standby database as soon as it is received, Flashback Database can be used to revert the physical standby database to a point in time before the logical corruption occurred.
It may not be used to flash back a primary database after a failover to a physical standby (E): After a failover has occurred from a primary to a physical standby database, making the standby the new primary, Flashback Database cannot be used to revert the old primary database to a state before the failover because the failover operation makes irreversible changes to the database role and configuration.
Reference:
Oracle Database Backup and Recovery User's Guide
Oracle Data Guard Concepts and Administration

NEW QUESTION # 24
Which three statements are true about Data Guard database modes and states?

A. Databases in a Data Guard Configuration need not operate in Flashback Logging mode.
B. The Primary Database can operate in noarchivelog mode.
C. A primary database may ship redo directly to more than nine standby databases.
D. A Logical Standby Database can be in MOUNT state while applying changes.
E. Force Logging Mode is not required for a primary database but is recommended.

Answer: A,D,E

NEW QUESTION # 25
......

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Free PDF 1z0-076 - Oracle Database 19c: Data Guard Administration Authoritative New Questions

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Oracle Database 19c: Data Guard Administration Sample Questions (Q20-Q25):

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