Using "yesterday's weather" forecasting, a team commits to their 3-sprint average velocity of 42 points. However, the upcoming sprint has 2 public holidays and a mandatory training day. What should they do?

A service is healthy but receives more requests than it can safely process; queues grow, latency explodes, and it eventually crashes. What is best immediate strategy in this situation?

Which is a valid distinction between HLD and LLD?