A - FALSE; LREG
B - TRUE; Release 19, Database Concepts, 15 Process Architecture, Process Monitor Process (PMON) Group: The process monitor (PMON) detects the termination of other background processes. If a server or dispatcher process terminates abnormally, then the PMON group is responsible for performing process recovery.
C - FALSE; CKPT
D - FALSE; SMON
E - TRUE; Release 19, Database Concepts, 15 Process Architecture, Process Monitor Process (PMON) Group: CLMN periodically performs cleanup of terminated processes, ... and detached network connections that have exceeded their idle timeout.
We have to consider that the question is on PMON process and not PMON group (with PMON process, CLMN process and CLnn)
https://docs.oracle.com/en/database/oracle/oracle-database/21/cncpt/process-architecture.html#GUID-B5CA9579-53DB-442C-A85F-F21FD334833A
So i think E is wrong for this reason.
The answer B is right.
Answer A could be right or wrong depending by Oracle version.
For me correct answers are: A, B and I think that this is an old question referenced to an old Oracle version (<= 12cR1). Idk.
Maybe during the exam the answers will be different.
AE is Answer
• Performs process recovery when a user process fails
– Cleans up the database buffer cache
– Frees resources that are used by the user process
• Monitors sessions for idle session timeout
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