Question

Which statement below best describes fault tolerance?

a) Deploying resources across multiple Availability Zones

b) Deploying resources across multiple edge locations

c) Deploying resources across multiple AWS accounts

d) Deploying resources across multiple VPCs

Answer 1

a) Deploying resources across multiple Availability Zones

Deploying resources across multiple Availability Zones increases your fault tolerance because each Availability Zone is a set of one or more data centers, so if one Availability Zone goes down, there would be other Availability Zones still up and running — so your application would also be up and running.