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1Z0-068 Oracle Database 12c: RAC and Grid Infrastructure Administration 1Z0-068

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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 A thread of redo must be created before starting a fourth instance if a thread is not already available. B A thread of redo must contain at least two log groups before it can be enabled. C A redo log group added using ALTER DATABASE ADD LOGFILE without the INSTANCE clause is added to each instance. D All the instances must have the same number of redo log groups and each group must have the same number of redo log members. E A thread of redo is automatically dropped when an instance is removed from a RAC database by using SRVCTL.

Multiple answers may be correct.

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1Z0-068 Practice Test for Oracle Database 12c: RAC and Grid Infrastructure Administration 1Z0-068

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