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1z1-076 Questions Prepare with Learning Information
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NEW QUESTION # 34
Which three are true concerning database states after a successful switchover?
- A. If the former primary database became a physical standby database it will be in the same state as the former physical standby database.
- B. If the former primary database became a physical standby database it will always be open readonly.
- C. The new primary database will be open read-write.
- D. If the former primary database became a logical standby database it will be open read-write.
- E. If the former primary database became a logical standby database it will be in mount state.
- F. The former primary database will always be open.
Answer: A,C,D
Explanation:
After a successful switchover operation in a Data Guard environment, the new primary database (the former standby) will be open read-write (option A). If the former primary database transitions to a logical standby database, it will also be open read-write (option C), allowing it to apply redo data while servicing read-only queries. The former primary, if converted to a physical standby, will adopt the state that the former physical standby database was in prior to the switchover, which can vary based on the configuration prior to the switchover (option D). The state of a physical standby database can range from mounted to open read-only, depending on whether Real-Time Query was enabled. Thus, the exact state will depend on the pre-switchover setup. It's also essential to highlight that options B and E suggest specific states for a former primary turned logical standby, and a former primary turned physical standby, respectively, but these states are not fixed and depend on the configurations set up by the database administrators. References: The answers are corroborated by Oracle's documentation on Data Guard switchovers, specifically in the Oracle Data Guard Concepts and Administration guide, which explains the roles and states of databases in a Data Guard configuration before and after switchovers.
NEW QUESTION # 35
Which THREE statements are true about Far Sync instances?
- A. They enable standby databases to be configured at remote distances from the primary without impacting performance on the primary.
- B. The Data Guard Broker must be used to deploy and manage Far Sync instances.
- C. They work with any protection level.
- D. A primary database can ship redo directly to multiple Far Sync instances.
- E. They use an spfMe, a standby controlfile, and standby redo logs.
Answer: A,B,D
NEW QUESTION # 36
Which three can be done using Data Guard Broker?
- A. Define logical standby database skip rules.
- B. Automating failover to a specified target standby database.
- C. Create a new physical standby database.
- D. Converting physical standby databases to snapshot standby databases.
- E. Configuring the standby control file, server parameter file, and data files for a standby database.
- F. Monitoring and managing redo transport services, and log apply services.
Answer: B,C,D
NEW QUESTION # 37
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. Cats is a snapshot standby database.
- B. The redo transport mode is set to asyn: for the standby database Cats.
- C. The redo transport mode is set to async for both standby databases.
- D. The redo transport mode is set to async for the standby database Sheep.
Answer: A
Explanation:
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.
Reference:
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.
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:
NEW QUESTION # 38
Which two steps must be performed before running DUPLICATE TARGET DATABASE FOR STANDBY using RMAN?
- A. Run the nid utility to modify the DBID of the primary database.
- B. Configure Oracle Net connectivity between the primary host and the standby host.
- C. Create an SPFILE for the standby database.
- D. Create a standby control file.
- E. Transfer a copy of the password file from the primary host to the standby host.
Answer: B,E
NEW QUESTION # 39
You must configure flashback database for your Oracle 19c databases that will be part of a Data Guard Broker configuration.
The databases are all in ARCHIVELOG mode.
You will execute the SQL statement:
ALTER DATABASE FLASHBACK ON;
Which three are true concerning this command?
- A. It will execute successfully on an Oracle 19c physical standby database while Real Time Query is active.
- B. It will execute successfully while an Oracle 19c primary database is open.
- C. If executed successfully on an Oracle 19c primary database, flashback will also be enabled on all physical standby databases that are part of the configuration.
- D. It will execute successfully on an Oracle 19c logical standby database while SQL apply is active.
- E. If executed successfully on an Oracle 19c primary database, flashback will also be enabled on all logical standby databases that are part of the configuration.
- F. It will execute successfully while an Oracle 19c primary database is mounted.
Answer: B,D,F
Explanation:
The command ALTER DATABASE FLASHBACK ON; enables the Flashback Database feature, which provides a way to quickly revert an entire Oracle database back to a previous point in time. This command can be executed while an Oracle 19c primary database is either open (option A) or mounted (option B). It is also applicable to an Oracle 19c logical standby database while SQL Apply is active (option E). However, it's important to note that enabling Flashback Database on the primary does not automatically enable it on all associated standby databases, whether they are physical or logical. Each database in a Data Guard configuration must have Flashback Database explicitly enabled if desired. Real Time Query being active on a physical standby does not directly relate to the ability to execute this command on the standby. Reference: The explanation is based on Oracle's concepts for Flashback Technology and Data Guard configurations as detailed in the Oracle Database Backup and Recovery User's Guide and the Oracle Data Guard Concepts and Administration guide.
NEW QUESTION # 40
Which THREE statements are true........ open in real time query mode, which becomes a new.
- A. Sessions that are using database links
- B. Sessions that have long running queries can be retained.
- C. User sessions and Current Buffers are maintained by default.
- D. All sessions are disconnected and all
- E. User sessions can be retained.
- F. All current buffers can be retained.
Answer: D,E,F
Explanation:
When a physical standby database is opened in real-time query mode, which may be referred to as real-time apply when using Active Data Guard, certain operations can disrupt ongoing sessions. However, with features like Application Continuity and the proper configuration of initialization parameters such as STANDBY_DB_PRESERVE_STATES, user sessions and current buffers may be preserved during role transitions such as a switchover or failover. Specifically, the STANDBY_DB_PRESERVE_STATES parameter can be set to preserve none, all, or only user sessions during such transitions. This ensures that in-flight transactions are not lost and that users do not experience disruptions during the role transitions of a physical standby database.
References
* Oracle Data Guard Concepts and Administration
* Oracle Database Licensing Information User Manual
* Oracle Data Guard Broker User Manual
NEW QUESTION # 41
You notice that the SQL apply lag on your logical standby database has increased but the redo transport lag has not.
Which four could be reasons for the increase in SQL apply lag?
- A. An increased number of bulk updates on the primary
- B. An undersized shared pool
- C. An increased number of bulk inserts on the primary
- D. The standby redo log files are undersized on the primary database
- E. An undersized undo tablespace on the logical standby
- F. Many SQL apply operations do full table scans
Answer: A,B,E,F
Explanation:
The SQL apply lag on a logical standby database can be caused by several factors:
A: An undersized undo tablespace can lead to delays in SQL apply operations as it may not be able to handle the volume of undo records generated by the SQL apply process.
B: SQL apply operations that do full table scans can consume significant system resources, potentially leading to higher apply lag.
C: An increased number of bulk updates on the primary database may generate a large volume of redo data, which can cause apply lag if the logical standby cannot apply the changes quickly enough.
F: An undersized shared pool may affect the parsing and execution of SQL statements by SQL apply, which can contribute to the apply lag.
Option D is less likely to be a direct cause of SQL apply lag compared to bulk updates, as inserts generate new data rather than modifying existing data, which SQL apply can typically handle more efficiently.
Option E is incorrect because the size of the standby redo log files on the primary database impacts redo transport lag, not SQL apply lag.
NEW QUESTION # 42
Examine this list of possible steps:
1. Raise the compatibility level on both databases.
2. Restart SQL Apply on the upgraded logical standby database.
3. Start SQL Apply on the old primary database.
4. Perform a Switchover to the logical standby database.
5. Upgrade the logical standby database.
6. Upgrade the old primary database.
Which is the minimum number of steps in the correct order, to perform a rolling release upgrade of a data guard environment using an existing logical standby database and to enable the new functionality?
- A. 5,2,4,3,6,1
- B. 5,2,4,1
- C. 5,2,4,6,3,1
- D. 4,6,5,2,3,1
- E. 1,5,2,4,6,3
Answer: E
Explanation:
The process of performing a rolling release upgrade in a Data Guard environment using a logical standby database generally involves these steps:
Raise the compatibility level on both databases (1): Ensuring both the primary and logical standby databases are operating with the same and correct compatibility level is essential before starting the upgrade process.
Upgrade the logical standby database (5): Apply the database upgrade to the logical standby first, which allows the primary database to continue serving the workload without interruption.
Restart SQL Apply on the upgraded logical standby database (2): Once the logical standby has been upgraded, SQL Apply must be restarted to apply the redo data from the primary database, which is still running the earlier version.
Perform a switchover to the logical standby database (4): After confirming that the logical standby database is successfully applying redo data, perform a switchover to make it the new primary database.
Upgrade the old primary database (6): With the new primary database now in place, upgrade the old primary database (which is now the new standby) to the new Oracle Database release.
Start SQL Apply on the old primary database (3): Finally, start SQL Apply on what is now the standby database to synchronize it with the new primary database.
Reference:
Oracle Data Guard Concepts and Administration Guide
Oracle Database Upgrade Guide
NEW QUESTION # 43
There are currently 6 applief. and 6 pfepafef processes running and no idle applier processes on y logical standby database.
The max_SERVERS SQL apply parameter and number of archiver processes are both set to 12.
Identify two changes, each of which would allow you to increase the number of applier processes.
- A. Decrease the number of archiver processes on the standby database.
- B. Increase the processes initialization parameter. D Decrease the number of FREPARER processes.
- C. Increase the RECOVERY_PARALLEL initialization parameter.
- D. Increase the value for the MAX_SERVERS SQL apply parameter.
- E. Increase the parallel_max_server initialization parameter.
Answer: D,E
Explanation:
To increase the number of applier processes on a logical standby database, the following changes can be made:
C: Increasing the value for the MAX_SERVERS SQL apply parameter would allow for more applier processes to be initiated, assuming that system resources permit.
D: Increasing the PARALLEL_MAX_SERVERS initialization parameter would allow for more parallel execution processes, which can be used by SQL apply to increase the number of applier processes.
Option A is incorrect as decreasing the number of archiver processes will not necessarily increase the number of applier processes; these are unrelated components.
Option B is incorrect because the 'FREPARER' processes do not exist, it seems to be a typographical error, and the 'REPARER' is not a valid Oracle process or parameter.
Option E is incorrect because the RECOVERY_PARALLELISM parameter controls the number of processes used for instance recovery and media recovery, not for SQL apply.
NEW QUESTION # 44
There are currently 6 applief. and 6 pfepafef processes running and no idle applier processes on y logical standby database.
The max_SERVERS SQL apply parameter and number of archiver processes are both set to 12.
Identify two changes, each of which would allow you to increase the number of applier processes.
- A. Decrease the number of archiver processes on the standby database.
- B. Increase the processes initialization parameter. D Decrease the number of FREPARER processes.
- C. Increase the RECOVERY_PARALLEL initialization parameter.
- D. Increase the value for the MAX_SERVERS SQL apply parameter.
- E. Increase the parallel_max_server initialization parameter.
Answer: D,E
Explanation:
To increase the number of applier processes on a logical standby database, the following changes can be made:
* C: Increasing the value for the MAX_SERVERS SQL apply parameter would allow for more applier processes to be initiated, assuming that system resources permit.
* D: Increasing the PARALLEL_MAX_SERVERS initialization parameter would allow for more parallel execution processes, which can be used by SQL apply to increase the number of applier processes.
Option A is incorrect as decreasing the number of archiver processes will not necessarily increase the number of applier processes; these are unrelated components.
Option B is incorrect because the 'FREPARER' processes do not exist, it seems to be a typographical error, and the 'REPARER' is not a valid Oracle process or parameter.
Option E is incorrect because the RECOVERY_PARALLELISM parameter controls the number of processes used for instance recovery and media recovery, not for SQL apply.
References: Oracle Data Guard Concepts and Administration guide details the configuration and tuning of SQL apply-related parameters in logical standby databases.
NEW QUESTION # 45
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 fastStartFailoverTarget property is not set 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 Dogs.
- E. The LogXptMode property is set to FASTSYNC on Cats while Sheep is the target standby database.
Answer: A,B,C
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.
Reference:
Oracle Data Guard Broker documentation
Oracle Database Error Messages Guide
NEW QUESTION # 46
Which three are prerequisites for enabling Fast-Start Failover?
- A. The configuration must be operating in either Maximum Performance or Maximum Protection mode.
- B. The maximum protection mode can be used, but with two or more standby databases.
- C. Flashback Database must be enabled only on the Fast-Start Failover target standby database.
- D. The Data Guard environment must be managed by the Data Guard Broker.
- E. Flashback Database must be enabled on both the primary database and the Fast-Start Failover target standby database.
- F. You can specify only one standby database as the fast-start failover target.
Answer: D,E,F
Explanation:
To enable Fast-Start Failover in a Data Guard environment, the following conditions must be in place:
* The Data Guard environment must be managed by the Data Guard Broker (A): The Broker simplifies management tasks and is required to enable fast-start failover, which is an automatic failover mechanism provided by Data Guard.
* You can specify only one standby database as the fast-start failover target (C): Fast-start failover is designed to fail over to a single, predetermined standby database, known as the target standby.
* Flashback Database must be enabled on both the primary database and the Fast-Start Failover target standby database (F): Flashback Database provides a quick way to revert a database to a point
* in time before a logical or physical corruption or error occurred. It must be enabled on both the primary and target standby databases to allow for the possibility of reinstating the old primary as a standby after a failover.References:
* Oracle Data Guard Concepts and Administration Guide
* Oracle Database High Availability Overview
NEW QUESTION # 47
Which two are true about managing and monitoring Oracle container databases in a Data Guard environment using the broker?
- A. If the primary database is not a container database, then a standby may be a container database.
- B. If the primary database is a container database, then a physical standby may be a non-container database.
- C. All broker actions execute at the root container for container databases.
- D. After a role change, the broker opens all Pluggable databases (pdbb) on the new primary.
- E. If the primary database is a container database, then a logical standby may be a non-container database.
Answer: C,D
Explanation:
In the context of Oracle Data Guard and container databases (CDBs) managed by Data Guard Broker:
All broker actions execute at the root container for container databases (D): When using Data Guard Broker to manage a CDB, the actions performed by the broker are executed at the level of the root container. This is because the root container maintains the control and configuration information that applies to the entire CDB, including all of its pluggable databases (PDBs).
After a role change, the broker opens all Pluggable databases (PDBs) on the new primary (E): Following a role transition such as a switchover or a failover, Data Guard Broker ensures that all PDBs within the CDB of the new primary database are opened, which is essential to resume operations of the PDBs without manual intervention.
Reference:
Oracle Data Guard Broker documentation
Oracle Multitenant Administrator's Guide
NEW QUESTION # 48
Which THREE statements are TRUE about Global Sequences when connected to a physical standby database with Real-Time Query enabled?
- A. Their usage will always have a performance impact on the primary database.
- B. Their creation requires that a LOG archive_dest_n parameter be defined in the standby that points back to the primary.
- C. Their usage may have a performance impact on the physical standby database if the CACHE size is too small.
- D. If the CACHE option is set then the size of the cache must be at least 100.
- E. They must have the NOORDEK and CACHE options set.
Answer: A,C,E
Explanation:
Global Sequences are Oracle sequences that generate unique values across multiple instances in an Oracle RAC or a Data Guard configuration. Regarding their behavior and performance when connected to a physical standby database with Real-Time Query enabled:
* A: The usage of Global Sequences can indeed have a performance impact on the primary database due to the need to generate unique values that are consistent across both primary and standby databases.
* D: The performance impact on the physical standby database may occur if the CACHE size is too small. This is because the standby database will frequently have to access the primary database to replenish the cache, which can increase the load and potentially lead to performance degradation.
* E: Global Sequences should have the NOORDER and CACHE options set. The NOORDER option ensures that sequence numbers are provided without guaranteeing sequence order, thus improving scalability and performance. The CACHE option is used to specify how many sequence values will be held in memory for faster access.
Option B is incorrect as the LOG_ARCHIVE_DEST_n parameter's definition for standbys pointing back to the primary does not directly pertain to the creation of sequences.
Option C is incorrect because there is no requirement that the size of the cache for a sequence must be at least
100. The CACHE size can be set to a different number based on specific use cases or performance considerations.
References: Oracle's documentation on sequences and their behavior in a Data Guard environment provides insights into the performance considerations and best practices for using sequences, particularly in a Real-Time Query context.
NEW QUESTION # 49
Which THREE statements are true about Far Sync instances?
- A. They enable standby databases to be configured at remote distances from the primary without impacting performance on the primary.
- B. The Data Guard Broker must be used to deploy and manage Far Sync instances.
- C. They work with any protection level.
- D. A primary database can ship redo directly to multiple Far Sync instances.
- E. They use an spfMe, a standby controlfile, and standby redo logs.
Answer: A,B,D
Explanation:
Far Sync instances are a feature of Oracle Data Guard designed to support zero data loss protection over long distances:
* The Data Guard Broker must be used to deploy and manage Far Sync instances (A): Data Guard Broker simplifies the deployment and management of Far Sync instances, which are an integral part of zero data loss protection configurations.
* They enable standby databases to be configured at remote distances from the primary without impacting performance on the primary (C): Far Sync instances are designed to receive redo from the primary database and then forward it to a remote standby database, thereby avoiding any performance
* impact on the primary database itself.
* A primary database can ship redo directly to multiple Far Sync instances (E): A primary database can be configured to send redo logs to more than one Far Sync instance, which can then forward the redo to their respective remote standby databases.References:
* Oracle Data Guard Concepts and Administration Guide
* Oracle Database High Availability Overview
NEW QUESTION # 50
You notice that the SQL apply lag on your logical standby database has increased but the redo transport lag has not.
Which four could be reasons for the increase in SQL apply lag?
- A. An increased number of bulk updates on the primary
- B. An undersized shared pool
- C. An increased number of bulk inserts on the primary
- D. The standby redo log files are undersized on the primary database
- E. An undersized undo tablespace on the logical standby
- F. Many SQL apply operations do full table scans
Answer: A,B,E,F
Explanation:
The SQL apply lag on a logical standby database can be caused by several factors:
* A: An undersized undo tablespace can lead to delays in SQL apply operations as it may not be able to handle the volume of undo records generated by the SQL apply process.
* B: SQL apply operations that do full table scans can consume significant system resources, potentially leading to higher apply lag.
* C: An increased number of bulk updates on the primary database may generate a large volume of redo data, which can cause apply lag if the logical standby cannot apply the changes quickly enough.
* F: An undersized shared pool may affect the parsing and execution of SQL statements by SQL apply, which can contribute to the apply lag.
Option D is less likely to be a direct cause of SQL apply lag compared to bulk updates, as inserts generate new data rather than modifying existing data, which SQL apply can typically handle more efficiently.
Option E is incorrect because the size of the standby redo log files on the primary database impacts redo transport lag, not SQL apply lag.
References: Oracle Database High Availability Overview and Oracle Data Guard Concepts and Administration guide provide insights into the factors affecting SQL apply performance on logical standby databases.
NEW QUESTION # 51
Which three statements are true about snapshot standby databases?
- A. A resize command to extend the size of a datafile in the snapshot standby database, which was created in the snapshot standby database, will succeed.
- B. A resize command to extend the size of a datafile in the snapshot standby database, which was created in the primary database, will succeed.
- C. A resize command to reduce the size of an empty datafile in the snapshot standby database, which was created in the physical standby database, will succeed.
- D. A resize command to reduce the size of an empty datafile in the snapshot standby database, which was created in the snapshot standby database, will succeed.
- E. A resize command to reduce the size of an empty datafile in the snapshot standby database, which was created in the primary database, will succeed.
Answer: A,B,D
NEW QUESTION # 52
Examine this list of possible steps:
1. Raise the compatibility level on both databases.
2. Restart SQL Apply on the upgraded logical standby database.
3. Start SQL Apply on the old primary database.
4. Perform a Switchover to the logical standby database.
5. Upgrade the logical standby database.
6. Upgrade the old primary database.
Which is the minimum number of steps in the correct order, to perform a rolling release upgrade of a data guard environment using an existing logical standby database and to enable the new functionality?
- A. 5,2,4,3,6,1
- B. 5,2,4,1
- C. 5,2,4,6,3,1
- D. 4,6,5,2,3,1
- E. 1,5,2,4,6,3
Answer: E
Explanation:
The process of performing a rolling release upgrade in a Data Guard environment using a logical standby database generally involves these steps:
* Raise the compatibility level on both databases (1): Ensuring both the primary and logical standby databases are operating with the same and correct compatibility level is essential before starting the upgrade process.
* Upgrade the logical standby database (5): Apply the database upgrade to the logical standby first, which allows the primary database to continue serving the workload without interruption.
* Restart SQL Apply on the upgraded logical standby database (2): Once the logical standby has been upgraded, SQL Apply must be restarted to apply the redo data from the primary database, which is still running the earlier version.
* Perform a switchover to the logical standby database (4): After confirming that the logical standby database is successfully applying redo data, perform a switchover to make it the new primary database.
* Upgrade the old primary database (6): With the new primary database now in place, upgrade the old primary database (which is now the new standby) to the new Oracle Database release.
* Start SQL Apply on the old primary database (3): Finally, start SQL Apply on what is now the standby database to synchronize it with the new primary database.References:
* Oracle Data Guard Concepts and Administration Guide
* Oracle Database Upgrade Guide
NEW QUESTION # 53
Which three are prerequisites for using Data Guard Broker?
- A. A statically defined listener end-point must be registered with the local listener on the servers hosting the standby database instances.
- B. Network connectivity to the primary database instance must be defined on the servers hosting the standby database instances.
- C. The primary and standby databases must run the same version of the Oracle Database server.
- D. The broker configuration files for a RAC database must reside in shared storage accessible by all the RAC database instances.
- E. 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.
- F. DG_BROKEB_START must be set to TRUE for a database instance before adding the database to the broker configuration.
Answer: B,C,E
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 # 54
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