SAP-C02 第 390 题
题目
A company is currently in the design phase of an application that will need an RPO of less than 5 minutes and an RTO of less than 10 minutes. The solutions architecture team is forecasting that the database will store approximately 10 TB of data. As part of the design, they are looking for a database solution that will provide the company with the ability to fail over to a secondary Region. Which solution will meet these business requirements at the LOWEST cost?
中文翻译:
一家公司目前正处于应用程序的设计阶段,该应用程序需要少于 5 分钟的 RPO 和少于 10 分钟的 RTO。解决方案架构团队预测该数据库将存储大约 10 TB 的数据。作为设计的一部分,他们正在寻找一种数据库解决方案,该解决方案将为公司提供故障转移到辅助区域的能力。哪种解决方案能够以最低的成本满足这些业务需求?
选项
A. Deploy an Amazon Aurora DB cluster and take snapshots of the cluster every 5 minutes. Once a snapshot is complete, copy the snapshot to a secondary Region to serve as a backup in the event of a failure.
中文翻译:
部署 Amazon Aurora 数据库集群并每 5 分钟拍摄一次集群快照。快照完成后,将快照复制到辅助区域,以在出现故障时作为备份。
B. Deploy an Amazon RDS instance with a cross-Region read replica in a secondary Region. In the event of a failure, promote the read replica to become the primary.
中文翻译:
在辅助区域中部署具有跨区域只读副本的 Amazon RDS 实例。如果发生故障,请将只读副本提升为主副本。
C. Deploy an Amazon Aurora DB cluster in the primary Region and another in a secondary Region. Use AWS DMS to keep the secondary Region in sync.
中文翻译:
在主要区域中部署一个 Amazon Aurora 数据库集群,在次要区域中部署另一个 Amazon Aurora 数据库集群。使用 AWS DMS 使次要区域保持同步。
D. Deploy an Amazon RDS instance with a read replica in the same Region. In the event of a failure, promote the read replica to become the primary.
中文翻译:
在同一区域中部署具有只读副本的 Amazon RDS 实例。如果发生故障,请将只读副本提升为主副本。
答案
B
解析
正确答案:B 解析: 本题应选择 B。 正确选项: B. 在辅助区域中部署具有跨区域只读副本的 Amazon RDS 实例。如果发生故障,请将只读副本提升为主副本。 选择理由: 该选项最直接地满足题干中的关键约束。做 SAP-C02 题目时,需要同时对照题干里的限定词,例如最高性能、最低运维开销、成本效益、可靠性、可扩展性、安全性、RTO/RPO、合规要求等。本题相关考点主要包括:RDS、Aurora、Backup、DMS。 排除思路:...