Oracle Database 19c: Data Guard Administration Practice Exam 2025: Latest Questions

What is the primary purpose of the Data Guard Broker in an Oracle Data Guard configuration?

Which transport mode provides the highest level of data protection by ensuring that transactions are not committed on the primary database until redo data has been written to the standby redo logs on at least one standby database?

A DBA needs to verify the current protection mode of a Data Guard configuration. Which query should be executed on the primary database to determine this information?

During a routine monitoring session, you notice that the apply lag on your physical standby database is continuously increasing. Which of the following is the MOST likely cause?

Your organization requires a switchover from the primary database in Boston to the standby database in London. Which prerequisite condition must be verified before initiating a switchover operation?

A company wants to use their physical standby database for read-only reporting queries while continuing to apply redo data. What feature enables this capability?

Which command sequence should be used in DGMGRL to perform a switchover from the primary database BOSTON to the standby database LONDON?

An application development team needs to test a database upgrade procedure on the standby database without affecting the primary database or disrupting the Data Guard configuration. Which type of standby database conversion would best meet this requirement?

In a Data Guard configuration with multiple standby databases, the primary database has experienced a catastrophic failure. The DBA needs to perform a failover to the standby database in Chicago. After reviewing the standby databases, Chicago has an apply lag of 5 minutes while Dallas has an apply lag of 2 minutes. What is the BEST practice approach for this failover scenario?

A DBA is configuring redo transport services and needs to optimize network bandwidth usage while maintaining acceptable performance. The standby database is located across a WAN connection with limited bandwidth. Which configuration option would be MOST appropriate?

You are configuring a new standby database and need to set up redo transport services. Which initialization parameter must be configured on the primary database to specify the destination for redo data transmission to the standby database?

A DBA notices that the standby database is falling behind the primary database during peak hours. The alert log shows messages about RFS (Remote File Server) processes being busy. What is the most effective solution to improve redo transport performance?

During a planned switchover operation, what is the correct sequence of database role transitions?

An organization requires that committed transactions on the primary database must be written to at least one standby database's redo logs before the commit operation completes. Which combination of settings achieves this requirement?

You need to perform testing on a physical standby database without affecting the primary database or disrupting redo apply. What feature should you use?

A database administrator is troubleshooting a Data Guard configuration where the standby database shows an apply lag of several hours. The query 'SELECT PROCESS, STATUS, THREAD#, SEQUENCE# FROM V$MANAGED_STANDBY' shows that MRP0 process status is 'WAIT_FOR_GAP'. What is the most likely cause and solution?

Your company has a Data Guard configuration with one primary and two physical standby databases. You want to perform a switchover to Standby1, but also ensure that Standby2 continues to receive redo from the new primary without manual reconfiguration. What configuration element ensures this seamless transition?

During a failover operation, the target standby database has applied all available redo but may have gaps. The DBA executes 'ALTER DATABASE ACTIVATE STANDBY DATABASE' instead of 'ALTER DATABASE RECOVER MANAGED STANDBY DATABASE FINISH'. What is the consequence of this action?

A financial services company requires zero data loss and needs the primary database to shut down automatically if redo cannot be written to at least one standby database. The standby is located in a different data center connected via WAN. Which configuration should be implemented?

You are implementing a Far Sync instance as part of your Data Guard configuration to minimize data loss while maintaining acceptable primary database performance over a long-distance WAN link. What is the primary architectural advantage of using a Far Sync instance in this scenario?

Your Data Guard environment has a primary database and two standby databases. You need to configure one standby to receive redo data directly from the primary while the other standby receives redo from the first standby to reduce network load on the primary. Which Data Guard feature should you implement?

During a routine switchover operation, you notice that the switchover process hangs at the 'SESSIONS ACTIVE' status. What is the most likely cause and appropriate action?

You are implementing a Data Guard configuration where the standby database must be open READ ONLY for reporting queries while simultaneously applying redo data. The primary database has guaranteed restore points. What must be configured on the standby database to support Active Data Guard functionality?

A financial application requires zero data loss protection with minimal performance impact on the primary database. The standby database is located 500 miles away with 20ms network latency. Which combination of Data Guard protection mode and redo transport service provides the best solution?

You need to monitor the apply lag on your physical standby database. Which query will provide the most accurate real-time measurement of how far behind the standby is in applying redo data?