Managing Long Running Tasks easy
What is a 'Cron Job'?
- A A job for corn farmers.
- B A virus.
- C A scheduled task that runs automatically at fixed times/dates (e.g., 'Every night at 3 AM').
- D A database query.
Answer: C. A scheduled task that runs automatically at fixed times/dates (e.g., 'Every night at 3 AM').
Common for recurring maintenance tasks like report generation or cleanup.
One system design question a day, with spaced repetition so the ones you miss come back.
Get the appRelated questions
- What is the primary purpose of a Dead Letter Queue (DLQ)?
- The architectural pattern where one service creates tasks and another processes them is called:
- In a Priority Queue system (High vs Low), what is 'Starvation' and how do you fix it?
- How do you atomically update your local database AND publish a message to a queue without losing sync if the process crashes in between?
- What does 'Fire and Forget' mean?
- Why might you 'Throttle' (limit the speed of) your background workers?