# Module 3 Knowledge Check
1. Which component of the AWS Global Infrastructure does Amazon CloudFront use to ensure low-latency delivery? (Select the best answer.)
  - [ ] AWS Regions
  - [X] AWS edge locations
  - [ ] AWS Availability Zones
  - [ ] Amazon Virtual Private Cloud (Amazon VPC)

2. You can run applications and workloads from a Region closer to the end users to ______ latency.
  - [ ] increase
  - [X] decrease

3. True or False? Networking, storage, compute, and databases are examples of service categories that AWS offers.
  - [X] True
  - [ ] False

4. Which of the following are geographic areas that host two or more Availability Zones? (Select the best answer.)
  - [ ] AWS Origins
  - [X] AWS Regions
  - [ ] Compute zones
  - [ ] Edge locations

5. ______ means the infrastructure has built-in component redundancy and ______ means that resources dynamically adjust to increases or decreases in capacity requirements.
  - [ ] No human intervention, fault tolerant
  - [ ] Elastic and scalable, no human intervention
  - [X] Fault tolerant, elastic and scalable
  - [ ] Fault tolerant, no human intervention
  - [ ] Elastic and scalable, fault tolerant

6. True or False? Availability Zones within a Region are connected through low-latency links.
  - [X] True
  - [ ] False

7. Which of these statements about Availability Zones is not true? (Select the best answer.)
  - [ ] Availability Zones are designed for fault isolation.
  - [ ] Availability Zones are made up of one or more data centers.
  - [X] A data center can be used for more than one Availability Zone.
  - [ ] Availability Zones are connected to each other using high-speed private links.

8. What is true about Regions? (Choose two.)
  - [ ] They are the physical locations of your customers.
  - [X] Each Region is located in a separate geographic area.
  - [ ] All Regions are located in one specific geographic area.
  - [X] A Region is a physical location that has multiple Availability Zones.

9. AWS highly recommends provisioning your compute resources across ______ Availability Zones. (Select the best answer.)
  - [ ] no
  - [ ] single
  - [X] multiple
  - [ ] all

10. True or False? Edge locations are only located in the same general area as Regions.
  - [ ] True
  - [X] False