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[Hardware] Useful Exam 1z1-076 Fee & Leader in Certification Exams Materials & Firs

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【Hardware】 Useful Exam 1z1-076 Fee & Leader in Certification Exams Materials & Firs

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Oracle 1z1-076 Exam Syllabus Topics:
TopicDetails
Topic 1
  • 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 2
  • 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 4
  • 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 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
  • 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 8
  • 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 9
  • 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 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
  • 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
  • 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 13
  • 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 14
  • 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.

Oracle Database 19c: Data Guard Administration Sample Questions (Q47-Q52):NEW QUESTION # 47
Examine the Data Guard configuration:
DGMGRL> show configuration;
Configuration - Animals
Protection Mode: Max Availability
Databases:
dogs - Primary database sheep
- Physical standby database cats
- Physical standby database
Fast-Start Failover: DISABLED
Configuration Status: SUCCESS
An attempt to enable fast-start failover raises an error:
DGMGRL> enable fast_start failover;
Error: ORA-16693: requirements not met for enabling fast-start failover Failed.
Identify three possible reasons for this error.
  • A. The LogXptMode property is set to fastsync on Dogs.
  • B. The LogXptMode property is set to async on Dogs.
  • C. The LogxptModr property is set to async on Sheep while Sheep is the target standby database.
  • D. The LogXptMode property is set to FASTSYNC on Cats while Sheep is the target standby database.
  • E. The fastStartFailoverTarget property is not set on Dogs.
Answer: B,C,E
Explanation:
When enabling fast-start failover, certain conditions must be met:
* The fastStartFailoverTarget property is not set on Dogs (A): The primary database (Dogs) needs to have a fast-start failover target configured for the operation to succeed.
* The LogXptMode property is set to ASYNC on Sheep while Sheep is the target standby database (B): Fast-start failover requires synchronous redo transport (SYNC or FASTSYNC) to ensure zero data loss, which is a prerequisite for enabling the feature.
* The LogXptMode property is set to ASYNC on Dogs (D): Similar to the previous point, the primary database must be configured to use synchronous redo transport for the fast-start failover to be possible.
References:
* Oracle Data Guard Broker documentation
* Oracle Database Error Messages Guide

NEW QUESTION # 48
Which TWO statements are true about Real-Time Query?
  • A. A standby database enabled for Real-Time Query cannot be the Fast-Start Failover target of the Data Guard configuration.
  • B. Disabling Real-Time Query prevents the automatic start of redo apply when a physical standby databases opened read only.
  • C. Real-Time Query sessions can be connected to a Far Sync instance.
  • D. Setting standby_max_data_delay=0 requires synchronous redo transport.
  • E. Real-Time Query has no limitations regarding the protection level of the Data Guard environment.
Answer: B,D
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.References:
* Oracle Data Guard Concepts and Administration Guide

NEW QUESTION # 49
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 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.
  • B. The Far Sync instance will not forward redo to the Far_away physical standby because the Protection mode is not MaxProtection.
  • C. 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.
  • D. The Far Sync instance will not forward redo to the Far_away physical standby because Fast-Start Failover is disabled.
  • E. 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.
Answer: C

NEW QUESTION # 50
On your logical standby database, you specified these rules:

After completion of the weekend batch cycle you attempt to delete the SQL Apply filters:

Which is TRUE regarding the execution of the UNSKIP procedure?
  • A. It returns an error because the syntax to delete a SQL Apply filter must specify the same object names as specified when the filter was added.
  • B. It succeeds only if SQL apply is stopped before deleting the SQL Apply filter.
  • C. It deletes both the SQL Apply filters.
  • D. It succeeds only if all DML statements executed on the primary have been applied on the logical standby deleting the SQL Apply filter.
  • E. It succeeds but the SQL Apply filters are not deleted.
Answer: C
Explanation:
The execution of the UNSKIP procedure is designed to remove SQL Apply filters that have been previously set up on a logical standby database. Based on the provided statements, the UNSKIP procedure is directed to delete any SQL Apply filters for DML statements associated with objects in the 'HR' schema that start with
'EMP'. Since both SKIP procedures had the same schema name ('HR') and statement type ('DML'), and the UNSKIP procedure uses a wildcard (%) for the object name, it will successfully remove both of the SQL Apply filters for 'EMP_NEW' and 'EMP_OLD', as both object names match the pattern provided in the UNSKIP procedure.
References:Oracle's Data Guard documentation and SQL Language Reference provide insights into managing SQL Apply filters on a logical standby database using the DBMS_LOGSTDBY package. This includes adding and removing filters through SKIP and UNSKIP procedures.

NEW QUESTION # 51
Your Data Guard configuration consists of these components and settings:
1. A primary database
2. A remote physical standby database
3. Real-time query is enabled
4. Redo transport mode is synchronous
5. Protection mode is maximum availability
6. The Data Guard broker is used
You notice that the standby destination fails to acknowledge reception of redo within net_timeout period of time.
Which is true in this scenario?
  • A. Real-time query will be disabled on the physical standby.
  • B. The protection mode will automatically change to Maximum Performance.
  • C. Synchronous redo transport mode connections to the standby database are terminated.
  • D. The physical standby database instance is shut down by the Data Guard broker.
Answer: C
Explanation:
In a Data Guard configuration where the protection mode is set to Maximum Availability and synchronous redo transport is enabled, if the standby destination fails to acknowledge the reception of redo within the net_timeout period, the primary database will terminate the synchronous redo transport mode connections to the standby database to protect the primary database from hanging (C). The primary database then operates in a Maximum Performance mode until the issue is resolved. This behavior ensures that the primary database can continue to process transactions even when the standby database is temporarily unavailable.
References:The Oracle Data Guard Broker documentation and Oracle Data Guard Concepts and Administration guide detail the behavior of different protection modes and the response to network timeouts, including the fallback to asynchronous redo transport to maintain primary database availability.

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