VPC

Question 1

VPC

Answer 1

Virtual Private Cloud

Question 2

Soft limit of VPC and Subnets per region

Answer 2

5 VPC, 200 subnets

Question 3

Configuring routing to the Internet

Answer 3

Create VPC. Go to Internet gateway bar.
Create Internet gateway and attach this to the VPC.
Go to route tables bar. Create route table. Click Edit routes and add a new route: Destination 0.0.0.0/0 and target is your IGW. Associate this route table with a subnet

Question 4

NACL

Answer 4

Network Access Control List. It functions the same way as firewall does on PC
NACL are stateless. So they do not recognize responses as being responses for a request which was allowed to

Question 5

Security groups

Answer 5

Security Groups are firewalls that are applied to individual instances or other devices like load balancers, interfaces
Security groups are statefull. So they do recognize when a request comes into port 80 and a load balancer responses to ephemeral port, they recohnize this to be a response

Question 6

VPC Peering

Answer 6

Allows to connect two VPCs