Q47 Cosmos DB Domain 2 · 25–30% of exam Priority · Real Exam

Your workload experiences 429 responses during traffic spikes but average RU consumption is low. Which change addresses this most directly?

  1. A Switch to Strong consistency
  2. B Enable autoscale throughput on the container (correct answer)
  3. C Add a composite index
  4. D Increase the TTL

Shortcut: Autoscale raises provisioned RU/s up to 10x the baseline automatically during bursts and scales back down, which suits spiky traffic far better than fixed provisioning.