Q154. An Artificial Intelligence startup company has used lots of EC2 instances. Some instances use SQL Server database while the others use Oracle. As the data needs to be kept secure regular snapshots are required. They want SQL Server EBS volume to take snapshot every 12 hours. However for Oracle it only needs a snapshot every day. Which option below is the best one that the company should choose without extra charge?
A.Use free third-party tool such as Clive to Manage EC2 instance lifecycle. It can design various backup policies for EC2 EBS volumes. Add a 12 hours backup policy to SQL Server EBS volumes and a 24 hours backup policy to Oracle EBS volumes. B.Add a prefix to the name of both SQL Server and Oracle EBS volumes. In AWS Data Lifecycle Management console create two management policies based on the name prefix.For example add a 12 hours backup schedule to EBS volumes with a name starting with sql and add a 24 hours backup schedule to EBS volumes with a name starting with oracle? C.Create a dedicate Lambda function to differentiate EC2 EBS volumes and take snapshots.Set up Cloudwatch Events Rules to call the lambda so that the function runs every 12 hours for SQL Server and 24 hours for Oracle. D.Add different tags for SQL Server and Oracle EBS volumes. In AWS Data Lifecycle Management console create two management policies based on the tags. Add a 12 hours schedule to SQL Server lifecycle policy and a 24 hours schedule to Oracle lifecycle policy正确答案D
