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Thomas Gibson is a cloud security engineer working in a multinational company. Thomas has created a Route 53 record set from his domain to a system in Florida, and a similar record to machines in Paris and Singapore.

Assume that network conditions remain unchanged and Thomas has hosted the application on Amazon EC2 instance; moreover, multiple instances of the application are deployed on different EC2 regions. When a user located in London visits Thomas's domain, to which location does Amazon Route 53 route the user request?

A.
Singapore
Answers
A.
Singapore
B.
London
Answers
B.
London
C.
Florida
Answers
C.
Florida
D.
Paris
Answers
D.
Paris
Suggested answer: D

Explanation:

Amazon Route 53 uses geolocation routing to route traffic based on the geographic location of the users, meaning the location from which DNS queries originate1. When a user located in London visits Thomas's domain, Amazon Route 53 will likely route the user request to the location that provides the best latency or is geographically closest among the available options.

1.Geolocation Routing: Route 53 will identify the geographic location of the user in London and route the request to the nearest or most appropriate endpoint.

1.Routing Decision: Given the locations mentioned (Florida, Paris, and Singapore), Paris is geographically closest to London compared to Florida and Singapore.

1.Latency Consideration: If latency-based routing is also configured, Route 53 will route the request to the region that provides the best latency, which is likely to be Paris for a user in London2.

1.Final Routing: Therefore, the user request from London will be routed to the machines in Paris, ensuring a faster and more efficient response.

Reference: Amazon Route 53's routing policies are designed to optimize the user experience by directing traffic based on various factors such as geographic location, latency, and health checks12. The geolocation routing policy, in particular, helps in serving traffic from the nearest regional endpoint, which in this case would be Paris for a user located in London1.

asked 18/09/2024
mr Craig Ferguson
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