chapter 10

Question 1

What are the components of a VPC?

Answer 1

Include at least one subnet, security groups, network access control lists (NACLs), and internet gateways.

Question 2

What are the different options for connecting to resources in a VPC?

Answer 2

over the internet,
a Direct Connect link,
a VPC peering connection,
a virtual private network (VPN) connection.

Question 3

What is the difference between a Route 53 public hosted zone and a private hosted zone?

Answer 3

Allowing anyone on the internet to resolve records for the associated domain name vs. allowing resolution only from resources within the associated VPCs.

Question 4

What information is needed to select the best Route 53 routing policy for a given scenario?

Answer 4

All routing policies except the Simple routing policy can use health checks to route around failures.
If you want to direct traffic to any available resource, Failover, Weighted, and Multivalue Answer routing policies will suffice.
If performance is a concern, choose a Latency routing policy.
If you need to direct users based on their specific location, use a Geolocation routing policy.

Question 5

How does CloudFront improves the speed of content delivery?

Answer 5

Caches objects in edge locations around the world and automatically directs users to the edge location that will give them the best performance at any given time.

Question 6

What information is needed to identify scenarios where CloudFront would be appropriate?

Answer 6

CloudFront is designed to give users the fastest possible access to content regardless of their physical location.
By caching content in edge locations that are distributed around the world, CloudFront helps ensure that your content is always close to your users.