Pop quiz – redo transport authentication problem in only one instance of primary database
Q1
In this case, password file is not correct for the primary instance that shows authentication error. We can simply copy password file from one of the other RAC servers to the failing server to fix this issue.
Pop quiz – using tape for SCN incremental backup
Q1
No, only disk backups can be used to resolve a gap with RMAN SCN incremental backups, because backups on tape cannot be cataloged.