Which of the following statements is true in regards to what ability launching your instances into a VPC instead of EC2-Classic gives you?

An existing client comes to you and says that he has heard that launching instances into a VPC (virtual private cloud) is a better strategy than launching instances into a EC2-classic which he knows is what you currently do. You suspect that he is correct and he has asked you to do some research about this and get back to him.

Which of the following statements is true in regards to what ability launching your instances into a VPC instead of EC2-Classic gives you?
A . All of the things listed here.
B . Change security group membership for your instances while they’re running
C . Assign static private IP addresses to your instances that persist across starts and stops
D . Define network interfaces, and attach one or more network interfaces to your instances

Answer: A

Explanation:

By launching your instances into a VPC instead of EC2-Classic, you gain the ability to:

Assign static private IP addresses to your instances that persist across starts and stops

Assign multiple IP addresses to your instances

Define network interfaces, and attach one or more network interfaces to your instances

Change security group membership for your instances while they’re running

Control the outbound traffic from your instances (egress filtering) in addition to controlling the inbound traffic to them (ingress filtering)

Add an additional layer of access control to your instances in the form of network access control lists (ACL)

Run your instances on single-tenant hardware

Reference: http://media.amazonwebservices.com/AWS_Cloud_Best_Practices.pdf