A software company headquartered in Australia decides to open its product to customers in Japan and Germany. It wants to run its application close to users on each continent by placing copies of the workload in AWS data centres located in those parts of the world. Which benefit of the AWS global infrastructure does this approach demonstrate?
- ALoose coupling, which lets each tier of the application fail without affecting the other tiers of the system
- BVertical scaling, which lets the company increase the size of a single server to serve more of its users
- CEncryption at rest, which keeps the stored user data unreadable while it sits on disk in each location
- DGlobal reach, which lets the company run its workloads in AWS locations around the world close to its users Correct
Why A is wrong: Loose coupling is a design practice for resilience between components, not the benefit of running workloads near users on other continents.
Why B is wrong: Vertical scaling grows one server's capacity; it does not describe placing workloads in worldwide locations close to users.
Why C is wrong: Encryption at rest protects stored data on disk; it is a security control and not the benefit of serving users worldwide.
Why D is correct: Global reach is the benefit of deploying workloads across worldwide AWS locations so users on each continent are served from nearby infrastructure.