SAP-C02 第 204 题
题目
A company has an application in the AWS Cloud. The application runs on a fleet of 20 Amazon EC2 instances. The EC2 instances are persistent and store data on multiple attached Amazon Elastic Block Store (Amazon EBS) volumes. The company must maintain backups in a separate AWS Region. The company must be able to recover the EC2 instances and their configuration within 1 business day, with loss of no more than 1 day's worth of data. The company has limited staff and needs a backup solution that optimizes operational efficiency and cost. The company already has created an AWS CloudFormation template that can deploy the required network configuration in a secondary Region. Which solution will meet these requirements?
中文翻译：
一家公司在 AWS 云中拥有一个应用程序。该应用程序在由 20 个 Amazon EC2 实例组成的队列上运行。 EC2 实例是持久性的，并将数据存储在多个附加的 Amazon Elastic Block Store (Amazon EBS) 卷上。公司必须在单独的 AWS 区域维护备份。公司必须能够在 1 个工作日内恢复 EC2 实例及其配置，并且丢失的数据不超过 1 天。该公司人员有限，需要一个能够优化运营效率和成本的备份解决方案。该公司已经创建了一个 AWS CloudFormation 模板，可以在辅助区域中部署所需的网络配置。哪种解决方案可以满足这些要求？
选项
A. Create a second CloudFormation template that can recreate the EC2 instances in the secondary Region. Run daily multivolume snapshots by using AWS Systems Manager Automation runbooks. Copy the snapshots to the secondary Region. In the event of a failure launch the CloudFormation templates, restore the EBS volumes from snapshots, and transfer usage to the secondary Region.
中文翻译：
创建第二个 CloudFormation 模板，该模板可以在辅助区域中重新创建 EC2 实例。使用 AWS Systems Manager Automation Runbook 运行每日多卷快照。将快照复制到辅助区域。如果发生故障，启动 CloudFormation 模板，从快照恢复 EBS 卷，并将使用情况转移到辅助区域。
B. Use Amazon Data Lifecycle Manager (Amazon DLM) to create daily multivolume snapshots of the EBS volumes. In the event of a failure, launch the CloudFormation template and use Amazon DLM to restore the EBS volumes and transfer usage to the secondary Region.
中文翻译：
使用 Amazon Data Lifecycle Manager (Amazon DLM) 创建 EBS 卷的每日多卷快照。如果发生故障，启动 CloudFormation 模板并使用 Amazon DLM 恢复 EBS 卷并将使用情况转移到辅助区域。
C. Use AWS Backup to create a scheduled daily backup plan for the EC2 instances. Configure the backup task to copy the backups to a vault in the secondary Region. In the event of a failure, launch the CloudFormation template, restore the instance volumes and configurations from the backup vault, and transfer usage to the secondary Region.
中文翻译：
使用 AWS Backup 为 EC2 实例创建计划的每日备份计划。配置备份任务以将备份复制到次要区域中的保管库。如果发生故障，启动 CloudFormation 模板，从备份保管库恢复实例卷和配置，并将使用情况转移到辅助区域。
D. Deploy EC2 instances of the same size and configuration to the secondary Region. Configure AWS DataSync daily to copy data from the primary Region to the secondary Region. In the event of a failure, launch the CloudFormation template and transfer usage to the secondary Region.
中文翻译：
将相同大小和配置的 EC2 实例部署到辅助区域。每天配置 AWS DataSync 以将数据从主要区域复制到次要区域。如果发生故障，启动 CloudFormation 模板并将使用转移到辅助区域。
答案
C
解析
正确答案：C 解析： 本题应选择 C。 正确选项： C. 使用 AWS Backup 为 EC2 实例创建计划的每日备份计划。配置备份任务以将备份复制到次要区域中的保管库。如果发生故障，启动 CloudFormation 模板，从备份保管库恢复实例卷和配置，并将使用情况转移到辅助区域。 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...