SAP-C02 学习助手

SAP-C02 第 151 题

S3 EC2 EBS

题目

A company has migrated an application from on premises to AWS. The application frontend is a static website that runs on two Amazon EC2 instances behind an Application Load Balancer (ALB). The application backend is a Python application that runs on three EC2 instances behind another ALB. The EC2 instances are large, general purpose On-Demand Instances that were sized to meet the on-premises specifications for peak usage of the application. The application averages hundreds of thousands of requests each month. However, the application is used mainly during lunchtime and receives minimal traffic during the rest of the day. A solutions architect needs to optimize the infrastructure cost of the application without negatively affecting the application availability. Which combination of steps will meet these requirements? (Choose two.)

中文翻译:
一家公司已将应用程序从本地迁移到 AWS。应用程序前端是一个静态网站,在应用程序负载均衡器 (ALB) 后面的两个 Amazon EC2 实例上运行。应用程序后端是一个 Python 应用程序,在另一个 ALB 后面的三个 EC2 实例上运行。 EC2 实例是大型通用按需实例,其大小可满足应用程序峰值使用的本地规范。该应用程序平均每月有数十万个请求。然而,该应用程序主要在午餐时间使用,在一天的其余时间接收的流量很少。解决方案架构师需要优化应用程序的基础架构成本,而不会对应用程序可用性产生负面影响。哪种步骤组合可以满足这些要求? (选择两个。)

选项

A. Change all the EC2 instances to compute optimized instances that have the same number of cores as the existing EC2 instances.

中文翻译:
将所有 EC2 实例更改为具有与现有 EC2 实例相同核心数量的计算优化实例。

B. Move the application frontend to a static website that is hosted on Amazon S3.

中文翻译:
将应用程序前端移至 Amazon S3 上托管的静态网站。

C. Deploy the application frontend by using AWS Elastic Beanstalk. Use the same instance type for the nodes.

中文翻译:
使用 AWS Elastic Beanstalk 部署应用程序前端。节点使用相同的实例类型。

D. Change all the backend EC2 instances to Spot Instances.

中文翻译:
将所有后端 EC2 实例更改为 Spot 实例。

E. Deploy the backend Python application to general purpose burstable EC2 instances that have the same number of cores as the existing EC2 instances.

中文翻译:
将后端 Python 应用程序部署到与现有 EC2 实例具有相同核心数量的通用可突发 EC2 实例。

答案

BE

解析

正确答案:BE 解析: 本题应选择 BE。 正确选项: B. 将应用程序前端移至 Amazon S3 上托管的静态网站。 E. 将后端 Python 应用程序部署到与现有 EC2 实例具有相同核心数量的通用可突发 EC2 实例。 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...

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