SAP-C02 学习助手

SAP-C02 第 82 题

CloudFront S3 EC2 EFS Config

题目

An adventure company has launched a new feature on its mobile app. Users can use the feature to upload their hiking and rafting photos and videos anytime. The photos and videos are stored in Amazon S3 Standard storage in an S3 bucket and are served through Amazon CloudFront. The company needs to optimize the cost of the storage. A solutions architect discovers that most of the uploaded photos and videos are accessed infrequently after 30 days. However, some of the uploaded photos and videos are accessed frequently after 30 days. The solutions architect needs to implement a solution that maintains millisecond retrieval availability of the photos and videos at the lowest possible cost. Which solution will meet these requirements?

中文翻译:
一家冒险公司在其移动应用程序上推出了一项新功能。用户可以使用该功能随时上传远足和漂流照片和视频。照片和视频存储在 S3 存储桶中的 Amazon S3 标准存储中,并通过 Amazon CloudFront 提供服务。公司需要优化存储成本。解决方案架构师发现,大多数上传的照片和视频在 30 天后就很少被访问。然而,一些上传的照片和视频在30天后被频繁访问。解决方案架构师需要实施一种解决方案,以尽可能低的成本维持照片和视频的毫秒级检索可用性。哪种解决方案可以满足这些要求?

选项

A. Configure S3 Intelligent-Tiering on the S3 bucket.

中文翻译:
在 S3 存储桶上配置 S3 智能分层。

B. Configure an S3 Lifecycle policy to transition image objects and video objects from S3 Standard to S3 Glacier Deep Archive after 30 days.

中文翻译:
配置 S3 生命周期策略,以在 30 天后将图像对象和视频对象从 S3 Standard 过渡到 S3 Glacier Deep Archive。

C. Replace Amazon S3 with an Amazon Elastic File System (Amazon EFS) file system that is mounted on Amazon EC2 instances.

中文翻译:
将 Amazon S3 替换为安装在 Amazon EC2 实例上的 Amazon Elastic File System (Amazon EFS) 文件系统。

D. Add a Cache-Control: max-age header to the S3 image objects and S3 video objects. Set the header to 30 days.

中文翻译:
将 Cache-Control: max-age 标头添加到 S3 图像对象和 S3 视频对象。将标题设置为 30 天。

答案

A

解析

正确答案:A 解析: 本题应选择 A。 正确选项: A. 在 S3 存储桶上配置 S3 智能分层。 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:CloudFront、S3、EC2、EFS、Config。 排除思路: B、C、D 通常会在协议或服务适配、单点故障、跨区...

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