You administer a RAC database that currently runs on a four-node cluster but which has three instances.
Which two statements are always true about redo logs for this RAC database? (Choose two.)
You administer a RAC database that currently runs on a four-node cluster but which has three instances.
Which two statements are always true about redo logs for this RAC database? (Choose two.)
A thread of redo must be created before starting a fourth instance if a thread is not already available. This ensures that each instance has its own thread of redo for transaction recovery and management. Additionally, a thread of redo must contain at least two log groups before it can be enabled, as this is a requirement for the proper functioning of the redo log mechanism within RAC environments to ensure data integrity and availability.
I think A E correct answer.