An IT firm has a web server deployed in the us-east-1 region which caters to web traffic for all users in North America. Recently they have added a new high-performance web server in the us-west-1 region. As per instructions from the IT manager, a new web server deployed at the us-west-1 region should be preferred by most of the users, but it should not incur additional latency to users.
Which Amazon Route 53 routing policy can be implemented to meet this requirement?

Answer options:

A.Implement a Geoproximity routing policy.
B.Implement a Geolocation routing policy.
C.Implement a Latency-based routing policy.
D.Implement a Multivalue answer routing policy.

Correct Answer: A
Geoproximity routing policy routes traffic to a resource based upon user and resource location. It uses bias value to determine the geographical area from which user traffic will be routed to a resource. For the above case, a Geoproximity routing policy can be implemented, and bias needs to be adjusted in such a way so that maximum users would prefer web servers in the us-west-1 region without much impact on latency.
Option B is incorrect as the Geolocation routing policy will consider user location while routing traffic to web servers. It would not prefer a particular web server while routing traffic.
Option C is incorrect as the latency-based routing policy will consider latency from user to web server. It would not prefer a particular web server while routing traffic.
Option D is incorrect as with Multivalue answer routing policy, users might use any of the servers out of the two which is not as per requirement.
For more information on routing policies with Amazon Route 53, refer to the following URL,
https://docs.aws.amazon.com/Route53/latest/DeveloperGuide/routing-policy.html