SAP-C02 第 187 题
题目
A company has an IoT platform that runs in an on-premises environment. The platform consists of a server that connects to IoT devices by using the MQTT protocol. The platform collects telemetry data from the devices at least once every 5 minutes. The platform also stores device metadata in a MongoDB cluster. An application that is installed on an on-premises machine runs periodic jobs to aggregate and transform the telemetry and device metadata. The application creates reports that users view by using another web application that runs on the same on- premises machine. The periodic jobs take 120-600 seconds to run. However, the web application is always running. The company is moving the platform to AWS and must reduce the operational overhead of the stack. Which combination of steps will meet these requirements with the LEAST operational overhead? (Choose three.)
中文翻译:
一家公司拥有一个在本地环境中运行的 IoT 平台。该平台由使用 MQTT 协议连接到 IoT 设备的服务器组成。该平台至少每 5 分钟从设备收集一次遥测数据。该平台还将设备元数据存储在 MongoDB 集群中。安装在本地计算机上的应用程序运行定期作业来聚合和转换遥测数据和设备元数据。该应用程序创建用户通过使用在同一本地计算机上运行的另一个 Web 应用程序查看的报告。定期作业需要 120-600 秒才能运行。但是,Web 应用程序始终在运行。该公司正在将平台迁移到 AWS,并且必须减少堆栈的运营开销。哪种步骤组合能够以最少的运营开销满足这些要求? (选择三项。)
选项
A. Use AWS Lambda functions to connect to the IoT devices
中文翻译:
使用 AWS Lambda 函数连接到 IoT 设备
B. Configure the IoT devices to publish to AWS IoT Core
中文翻译:
配置 IoT 设备以发布到 AWS IoT Core
C. Write the metadata to a self-managed MongoDB database on an Amazon EC2 instance
中文翻译:
将元数据写入 Amazon EC2 实例上的自管理 MongoDB 数据库
D. Write the metadata to Amazon DocumentDB (with MongoDB compatibility)
中文翻译:
将元数据写入 Amazon DocumentDB(与 MongoDB 兼容)
E. Use AWS Step Functions state machines with AWS Lambda tasks to prepare the reports and to write the reports to Amazon S3. Use Amazon CloudFront with an S3 origin to serve the reports
中文翻译:
将 AWS Step Functions 状态机与 AWS Lambda 任务结合使用来准备报告并将报告写入 Amazon S3。使用具有 S3 源的 Amazon CloudFront 来提供报告
F. Use an Amazon Elastic Kubernetes Service (Amazon EKS) cluster with Amazon EC2 instances to prepare the reports. Use an ingress controller in the EKS cluster to serve the reports
中文翻译:
使用 Amazon Elastic Kubernetes Service (Amazon EKS) 集群和 Amazon EC2 实例来准备报告。使用 EKS 集群中的入口控制器来提供报告
答案
BDE
解析
正确答案:BDE 解析: 本题应选择 BDE。 正确选项: B. 配置 IoT 设备以发布到 AWS IoT Core D. 将元数据写入 Amazon DocumentDB(与 MongoDB 兼容) E. 将 AWS Step Functions 状态机与 AWS Lambda 任务结合使用来准备报告并将报告写入 Amazon S3。使用具有 S3 源的 Amazon CloudFront 来提供报告 选择理由: 该选项最直接地满足...