Oracle Database Administration I — Question 154

Which three tasks are performed by background processes in an Oracle database instance? (Choose three.)

Answer options

• A. writing dirty database block images from the buffer cache
• B. reading database blocks into the buffer cache
• C. creating dedicated server connections
• D. writing redo to log files
• E. registering services with Oracle Net listeners

Correct answer: A, B, D

Explanation

The correct answers A, B, and D involve essential operations that background processes handle, such as managing the buffer cache and logging changes. Option C is incorrect because creating dedicated server connections is typically handled by front-end processes, not background ones. Option E is also wrong, as service registration is primarily managed by listener processes, not background processes.