You are asked to deploy applications so that they are fault-tolerant and highly available. Since the customers are based only in India, you plan to use only one region.
Which deployment area within a region would you use to deploy the applications?

Answer options:

A.Zone
B.Datacenter
C.Sub-Region
D.Datazone

Correct Answer: A
Option A is correct. Zones are a deployment area within a region, and Zones can be utilized for deploying applications in a way that they are fault-tolerant and highly available.
Option B is incorrect. If an application is deployed in a particular data center, and the data center is impacted by, say power failure or some calamity, the application would also go down. Hence, opting for a data center would not be the right choice.
Option C is incorrect. Sub-Region is an invalid option.
Option D is incorrect. Datazone is an invalid option.
https://cloud.google.com/docs/geography-and-regions#regions_and_zones