SAP-C02 第 275 题
题目
A company is planning to migrate an Amazon RDS for Oracle database to an RDS for PostgreSQL DB instance in another AWS account. A solutions architect needs to design a migration strategy that will require no downtime and that will minimize the amount of time necessary to complete the migration. The migration strategy must replicate all existing data and any new data that is created during the migration. The target database must be identical to the source database at completion of the migration process. All applications currently use an Amazon Route 53 CNAME record as their endpoint for communication with the RDS for Oracle DB instance. The RDS for Oracle DB instance is in a private subnet. Which combination of steps should the solutions architect take to meet these requirements? (Choose three.)
中文翻译:
一家公司计划将 Amazon RDS for Oracle 数据库迁移到另一个 AWS 账户中的 RDS for PostgreSQL 数据库实例。解决方案架构师需要设计一种无需停机并最大限度地减少完成迁移所需时间的迁移策略。迁移策略必须复制所有现有数据以及迁移期间创建的任何新数据。迁移过程完成时,目标数据库必须与源数据库相同。目前,所有应用程序都使用 Amazon Route 53 CNAME 记录作为与 RDS for Oracle 数据库实例进行通信的终端节点。 RDS for Oracle 数据库实例位于私有子网中。解决方案架构师应该采取哪些步骤组合来满足这些要求? (选择三项。)
选项
A. Create a new RDS for PostgreSQL DB instance in the target account. Use the AWS Schema Conversion Tool (AWS SCT) to migrate the database schema from the source database to the target database.
中文翻译:
在目标账户中创建新的 RDS for PostgreSQL 数据库实例。使用 AWS Schema Conversion Tool (AWS SCT) 将数据库架构从源数据库迁移到目标数据库。
B. Use the AWS Schema Conversion Tool (AWS SCT) to create a new RDS for PostgreSQL DB instance in the target account with the schema and initial data from the source database.
中文翻译:
使用 AWS Schema Conversion Tool (AWS SCT) 在目标账户中使用源数据库中的架构和初始数据创建新的 RDS for PostgreSQL 数据库实例。
C. Configure VPC peering between the VPCs in the two AWS accounts to provide connectivity to both DB instances from the target account. Configure the security groups that are attached to each DB instance to allow traffic on the database port from the VPC in the target account.
中文翻译:
在两个 AWS 账户中的 VPC 之间配置 VPC 对等互连,以提供从目标账户到两个数据库实例的连接。配置附加到每个数据库实例的安全组,以允许来自目标账户中的 VPC 的数据库端口上的流量。
D. Temporarily allow the source DB instance to be publicly accessible to provide connectivity from the VPC in the target account. Configure the security groups that are attached to each DB instance to allow traffic on the database port from the VPC in the target account.
中文翻译:
暂时允许源数据库实例可公开访问,以提供来自目标账户中的 VPC 的连接。配置附加到每个数据库实例的安全组,以允许来自目标账户中的 VPC 的数据库端口上的流量。
E. Use AWS Database Migration Service (AWS DMS) in the target account to perform a full load plus change data capture (CDC) migration from the source database to the target database. When the migration is complete, change the CNAME record to point to the target DB instance endpoint.
中文翻译:
在目标账户中使用 AWS Database Migration Service (AWS DMS) 执行从源数据库到目标数据库的完整加载加更改数据捕获 (CDC) 迁移。迁移完成后,更改 CNAME 记录以指向目标数据库实例终端节点。
F. Use AWS Database Migration Service (AWS DMS) in the target account to perform a change data capture (CDC) migration from the source database to the target database. When the migration is complete, change the CNAME record to point to the target DB instance endpoint.
中文翻译:
在目标账户中使用 AWS Database Migration Service (AWS DMS) 执行从源数据库到目标数据库的变更数据捕获 (CDC) 迁移。迁移完成后,更改 CNAME 记录以指向目标数据库实例终端节点。
答案
ACE
解析
正确答案:ACE 解析: 本题应选择 ACE。 正确选项: A. 在目标账户中创建新的 RDS for PostgreSQL 数据库实例。使用 AWS Schema Conversion Tool (AWS SCT) 将数据库架构从源数据库迁移到目标数据库。 C. 在两个 AWS 账户中的 VPC 之间配置 VPC 对等互连,以提供从目标账户到两个数据库实例的连接。配置附加到每个数据库实例的安全组,以允许来自目标账户中的 VPC 的数据...