What replaced the traditional SM36 Standard Job for standard housekeeping in S/4HANA?

What three sections make up defining a job in SM36?

Which transaction verifies that background processing works, and which one do you go to for a deeper check?

How many BTC work processes handle a batch job during execution?

Technical housekeeping jobs cannot be edited directly — what can you customize for them in SJOBREPO?

How often does the technical job repository runtime run, and which parameter controls it?

What are the ways to trigger an event?