What is the effect of setting maxmemory-policy to noeviction when memory is exhausted?

1. A Random keys are dropped
2. ✓ B Write commands return an OOM error while reads continue (correct answer)
3. C The server restarts
4. D TTLs are shortened automatically

Shortcut: noeviction refuses new writes with an OOM error rather than discarding data. It suits durable queues but is a poor fit for caches.