Which of the following are characteristics of Amazon VPC subnets? Choose 2 answers

My Read Replica appears “stuck” after a Multi-AZ failover and is unable to obtain or apply updates from the
source DB Instance. What do I do?

Is decreasing the storage size of a DB Instance permitted?

You launch an Amazon EC2 instance without an assigned AVVS identity and Access Management (IAM) role.
Later, you decide that the instance should be running with an IAM role. Which action must you take in order to
have a running Amazon EC2 instance with an IAM role assigned to it?

When creation of an EBS snapshot is initiated, but not completed, the EBS volume:

Can I test my DB Instance against a new version before upgrading?

Does Route 53 support MX Records?

You have an EC2 Security Group with several running EC2 instances. You change the Security Group rules to
allow inbound traffic on a new port and protocol, and launch several new instances in the same Security Group.
The new rules apply:

What is the charge for the data transfer incurred in replicating data between your primary and standby?

What does Amazon ElastiCache provide?