Q481. A marketing company is migrating an application that stores data on premises in a PostgreSQL database. The company wants to migrate the database to Amazon Aurora PostgresQL. The database size grows at an average rate of5 GB daily and is currently 50 TB.The data center has an internet connection with 50 Mbps of available bandwidth. The migration to AWS must be completed as soon as possible within the next 45 days. Which data transfer
Strategy meets these requirements with the LEAST amount of application downtime?
A.Take the application offline. Create a local backup of the database. Transmit the database backup file over the existing connection to an Amazon S3 bucket Use native database tools to restore the backup onto the new database and to set up replication to capture any changes since the backup. Modify the database connection string and bring the application online. B.Install the Server Migration Connector VM in the local data center Use the AWS Server Migration Service (AWS SMS) console to replicate the on-premises database to the new database Modify DNS records to point to the new database. C.Create a local backup of the database and copy the backup onto an AWS Snowball Edge Storage Optimized device Ship the device to AWS Use native database tools to restore the backup onto the new database from Amazon S3and to set up replication with the source database to capture any changes since the backup. Modify DNS records to point to the new database. D.Take the application offline Back up the database to a shared local file system Install an AWS DataSync agent on a VM in the data center. Configure the file system as the source location and configure an Amazon S3 bucket as the destination Use native database tools to restore the backup onto the new database. Modify the database connection string and bring the application online.正确答案C
