VPC

Question 1

Can a VPC Subnet be not associated with any route table?

Answer 1

A subnet is implicitly associated with the main route table if it is not explicitly associated with a particular route table. So, a subnet is always associated with some route table.

Question 2

Are network ACL stateful or stateless?

Answer 2

Network ACLs are stateless, which means that responses to allowed inbound traffic are subject to the rules for outbound traffic (and vice versa).

Question 3

What is the outbound ephemeral range to be openned for a http/https server?

Answer 3

32768-65535