SAP-C02 第 148 题
题目
A company wants to use AWS to create a business continuity solution in case the company's main on-premises application fails. The application runs on physical servers that also run other applications. The on-premises application that the company is planning to migrate uses a MySQL database as a data store. All the company's on-premises applications use operating systems that are compatible with Amazon EC2. Which solution will achieve the company's goal with the LEAST operational overhead?
中文翻译:
一家公司希望使用 AWS 创建业务连续性解决方案,以防公司的主要本地应用程序出现故障。该应用程序在还运行其他应用程序的物理服务器上运行。该公司计划迁移的本地应用程序使用 MySQL 数据库作为数据存储。该公司的所有本地应用程序都使用与 Amazon EC2 兼容的操作系统。哪种解决方案能够以最少的运营开销实现公司的目标?
选项
A. Install the AWS Replication Agent on the source servers, including the MySQL servers. Set up replication for all servers. Launch test instances for regular drills. Cut over to the test instances to fail over the workload in the case of a failure event.
中文翻译:
在源服务器(包括 MySQL 服务器)上安装 AWS Replication Agent。为所有服务器设置复制。启动常规演习的测试实例。在发生故障事件时切换到测试实例以对工作负载进行故障转移。
B. Install the AWS Replication Agent on the source servers, including the MySQL servers. Initialize AWS Elastic Disaster Recovery in the target AWS Region. Define the launch settings. Frequently perform failover and fallback from the most recent point in time.
中文翻译:
在源服务器(包括 MySQL 服务器)上安装 AWS Replication Agent。在目标 AWS 区域中初始化 AWS Elastic Disaster Recovery。定义启动设置。经常从最近的时间点执行故障转移和回退。
C. Create AWS Database Migration Service (AWS DMS) replication servers and a target Amazon Aurora MySQL DB cluster to host the database. Create a DMS replication task to copy the existing data to the target DB cluster. Create a local AWS Schema Conversion Tool (AWS SCT) change data capture (CDC) task to keep the data synchronized. Install the rest of the software on EC2 instances by starting with a compatible base AMI.
中文翻译:
创建 AWS Database Migration Service (AWS DMS) 复制服务器和目标 Amazon Aurora MySQL 数据库集群来托管数据库。创建DMS复制任务,将现有数据复制到目标数据库集群。创建本地 AWS Schema Conversion Tool (AWS SCT) 更改数据捕获 (CDC) 任务以保持数据同步。从兼容的基础 AMI 开始,在 EC2 实例上安装其余软件。
D. Deploy an AWS Storage Gateway Volume Gateway on premises. Mount volumes on all on-premises servers. Install the application and the MySQL database on the new volumes. Take regular snapshots. Install all the software on EC2 Instances by starting with a compatible base AMI. Launch a Volume Gateway on an EC2 instance. Restore the volumes from the latest snapshot. Mount the new volumes on the EC2 instances in the case of a failure event.
中文翻译:
在本地部署 AWS Storage Gateway 卷网关。在所有本地服务器上安装卷。在新卷上安装应用程序和 MySQL 数据库。定期拍摄快照。从兼容的基础 AMI 开始,在 EC2 实例上安装所有软件。在 EC2 实例上启动卷网关。从最新快照恢复卷。发生故障事件时,在 EC2 实例上装载新卷。
答案
B
解析
正确答案:B 解析: 本题应选择 B。 正确选项: B. 在源服务器(包括 MySQL 服务器)上安装 AWS Replication Agent。在目标 AWS 区域中初始化 AWS Elastic Disaster Recovery。定义启动设置。经常从最近的时间点执行故障转移和回退。 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...