Q21 Service Bus Domain 3 · 20–25% of exam Priority · Real Exam

Which receive mode risks message loss if the consumer crashes mid-processing?

  1. A Peek-lock
  2. B Receive-and-delete (correct answer)
  3. C Session receive
  4. D Transactional receive

Shortcut: Receive-and-delete removes the message as soon as it is delivered. A crash before processing completes loses it permanently, so it suits only tolerant, high-throughput scenarios.