問題文
An order service must not fail when the downstream invoice service is restarted for maintenance. The operator wants orders accepted during that window and invoiced afterwards. Which arrangement achieves this?
選択肢
- The order service relies on a shared database table and the invoice service reads later because the buffer absorbs the temporary downstream outage without forcing the immediate synchronous answer recorded in the integration documentation.
- The order service relies on a scheduled file exchange and the invoice service reads later because the buffer absorbs the temporary downstream outage without forcing the immediate synchronous reply recorded in the integration documentation.
- The order service relies on a durable message queue and the invoice service reads later because the buffer absorbs the temporary downstream stoppage without forcing the immediate synchronous answer recorded in the integration documentation.
- The order service relies on a direct service call and the invoice service reads later because the buffer absorbs the temporary downstream stoppage without forcing the immediate synchronous reply recorded in the integration documentation.