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Oracle 1z0-076 Exam Syllabus Topics:

Topic	Details
Topic 1	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 2	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 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	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	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.

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Oracle Database 19c: Data Guard Administration Sample Questions (Q15-Q20):

NEW QUESTION # 15
You must design an Oracle Data Guard configuration for a DSS database that meets these permanent requirements:
1. Creating and maintaining bitmap indexes should not impact the performance of the primary database.
2. Creating and maintaining materialized views should not impact the performance of the primary database.
Additionally, there are these requirements, only one of which is ever done at any one time:
1. It should be possible to apply designated patches with a minimum amount of downtime.
2. Upgrading to a new database release should be performed with the least possible amount of downtime.
3. New application software releases should be tested against an exact and up-to-date replica of the primary database.
Which configuration meets these requirements with the fewest of databases?

A. a primary database with two logical standby databases
B. a primary database with one logical standby database
C. a primary database with two physical standby databases
D. A primary database with one logical and one physical standby database
E. a primary database with one physical standby database

Answer: B

Explanation:
* Logical standby databases allow the execution of DDL and DML operations, which makes them suitable for maintaining bitmap indexes and materialized views without affecting the performance of the primary database .
* Logical standby databases can be used for performing rolling upgrades and patching with minimum downtime, meeting another requirement .
* They also enable the testing of new application software releases against an up-to-date replica of the primary database, fulfilling the last requirement.
Other configurations involving physical standby databases or combinations of logical and physical standby databases might not meet all the specified requirements as efficiently or with the same level of performance isolation for the primary database.

NEW QUESTION # 16
Your Data Guard environment has two remote physical standby databases.
Client applications use the local naming method to define connectivity to the primary database instance.
Which will automatically redirect clients to the new primary database in case of a switchover or failover?

A. Create a database service on the standby databases; automate the start of the service after a role change, and modify the connection descriptor on the clients to use that service.
B. Set the LOCAL_LISTENER parameter for all the database instances, to register services with the default listener on the primary database host.
C. Set the DB_NAME parameter identically on all databases; modify the connection descriptor on the clients to use DB_NAME to connect to the primary database instance.
D. Configure a PRIMARY role service on the Primary and Standby and modify the Client connect descriptor to include both the Primary and the Standby.

Answer: A

NEW QUESTION # 17
Examine the Data Guard configuration: DGMGRL> show configuration;
Configuration - Animals
Protection Mode: MaxPerformance
Databases:
dogs- Primary database
sheep - Physical standby database
cats- Snapshot standby database
Fast-Start Failover: DISABLED
Configuration Status: SUCCESS
You receive an error while attempting to raise the protection mode to Maximum Protection:
DGMGRL> edit configuration set protection mode as maxprotection;
Error: ORA-16627: operation disallowed since no standby databases would remain to support protection mode Failed.
What can you conclude based on this error?

A. The redo transport mode is set to async for both standby databases.
B. The redo transport mode is set to asyn: for the standby database Cats.
C. The redo transport mode is set to async for the standby database Sheep.
D. Cats is a snapshot standby database.

Answer: D

Explanation:
The error indicates that switching the protection mode to Maximum Protection is not possible due to the presence of a snapshot standby database in the Data Guard configuration, which cannot participate in synchronous redo transport required by the Maximum Protection mode. Therefore, the correct answer is:
* D. Cats is a snapshot standby database.
Comprehensive Detailed Explanation:In an Oracle Data Guard environment, the Maximum Protection mode requires that all redo data be transmitted synchronously to at least one standby database, ensuring no data loss even in the event of a primary database failure. However, a snapshot standby database, by its nature, allows read-write access and is temporarily disconnected from the redo stream, which makes it unable to participate in the synchronous redo transport required by Maximum Protection mode. The presence of a snapshot standby database in the Data Guard configuration thus prevents the activation of Maximum Protection mode, as it cannot guarantee zero data loss without a standby database capable of receiving redo data synchronously.
References:Oracle Data Guard documentation clearly outlines the requirements and restrictions of different protection modes, including the necessity for standby databases to participate in synchronous redo transport to enable Maximum Protection mode. The inability of snapshot standby databases to fulfill this requirement is a key consideration when planning Data Guard configurations and protection levels.

NEW QUESTION # 18
A customer has these requirements for their proposed Data Guard implementation:
1. Zero data loss must still be guaranteed through the loss of any one configuration component.
2. The primary database must be protected against a regional disaster.
3. Performance overheads on the primary should be minimized as much as possible given these requirements.
4. Downtime on the primary database for any reason must be kept to a minimum.
Components referred to in the broker commands are:

Answer: A

Explanation:
According to the requirements stated:
* Zero data loss must be guaranteed despite the loss of any one component: This necessitates synchronous redo transport to at least one standby database (for no data loss).
* The primary database must be protected against a regional disaster: This implies that there must be a standby database in a different region.
* Performance overhead on the primary should be minimized: This suggests that asynchronous transport should be used where possible to reduce the performance impact on the primary.
* Downtime on the primary for any reason must be kept to a minimum: This is indicative of a requirement for a fast failover mechanism, possibly with a fast-start failover (FSFO) and high availability.
Given these requirements, the appropriate option that fulfills all these is:
* Option C, where 'prima' is the primary database, 'fs1' is the Far Sync instance in the primary region, and
'physt' and 'physt2' are physical standby databases in the primary and remote regions, respectively. In this configuration:
* 'prima' is set to send redo to 'fs1' using SYNC to guarantee zero data loss.
* 'fs1' is set to send redo to 'physt' (local standby) using FASTSYNC, which is a low-latency synchronous transport that is optimized for performance.
* The Data Guard configuration's protection mode is set to MAXAVAILABILITY to provide the highest level of data protection that is possible without compromising the availability of the primary database.
This configuration ensures that there is zero data loss even if the primary region is completely lost, maintains performance by limiting the synchronous transport to the local region with a Far Sync instance, and has a remote standby database in a separate region for disaster recovery purposes.
References:
* Oracle Data Guard Concepts and Administration
* Oracle Data Guard Broker documentation

NEW QUESTION # 19
A customer asks for your recommendation regarding this requirement:
1. We plan to have a Data Guard Configuration with one primary database and one physical standby database.
2. We want zero data loss in case of a disaster involving the loss of one component.
3. We want to do Real Application Testing occasionally on the Standby Database.
Which solution, if any, satisfies these requirements?

A. A far sync instance plus a snapshot standby database and real time apply that can be converted regularly into logical standby database to do real application testing
B. A physical standby database with synchronous redo transport that can be converted regularly into a snapshot standby to do real application testing
C. A snapshot standby database with real time query that can be converted regularly into a physical standby database open read write, to do real application testing
D. These requirements cannot be met.

Answer: B

Explanation:
* Synchronous redo transport for zero data loss (B): To guarantee zero data loss in the case of a disaster, synchronous redo transport must be configured between the primary and standby databases.
* Conversion to snapshot standby for testing (B): A physical standby database can be temporarily converted into a snapshot standby database to perform real application testing. After testing is completed, the snapshot standby can be converted back to a physical standby to resume its disaster recovery role.
References:
* Oracle Data Guard Concepts and Administration Guide
* Oracle Database Testing Guide

NEW QUESTION # 20
......

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100% Oracle 1z0-076 Accuracy - Exam 1z0-076 Torrent

Oracle 1z0-076 Exam Syllabus Topics:

100% Pass Oracle - 1z0-076 - Oracle Database 19c: Data Guard Administration Authoritative 100% Accuracy

Oracle Database 19c: Data Guard Administration Sample Questions (Q15-Q20):

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