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Which of the following requires a custom cloudwatch metric to monitor?
A user has setup an RDS DB with Oracle. The user wants to get notifications when someone modifies the security group of that DB. How can the user configure that?
An organization has configured a VPC with an Internet Gateway (IGW). Pairs of public and private subnets (each with one subnet per Availability Zone), and an Elastic Load Balancer (ELB) configured to use the public subnets. The application's web tier leverages the ELB. Auto Scaling and a multi-AZ RDS database instance the organization would like to eliminate any potential single points of failure in this design.
What step should you take to achieve this organization's objective?
An administrator receives about 100 files per hour into Amazon S3 and will be loading the files into Amazon Redshift. Customers who analyze the data within Redshift gain significant value when they receive data as quickly as possible. The customers have agreed to a maximum loading interval of 5 minutes. Which loading approach should the administrator use to meet this objective?
What happens to the I/O operations while you take a database snapshot?