You have been asked to propose a multi-region deployment of a web-facing application where a controlled
portion of your traffic is being processed by an alternate region.
Which configuration would achieve that goal?
A.
Route53 record sets with weighted routing policy
B.
Route53 record sets with latency based routing policy
C.
Auto Scaling with scheduled scaling actions set
D.
Elastic Load Balancing with health checks enabled
Explanation:
http://docs.aws.amazon.com/ElasticLoadBalancing/latest/DeveloperGuide/TerminologyandKeyConcepts.html
Awnser: A
The question is asking “a controlled portion of your traffic”, that would be established with weighted routing policy.
See: http://docs.aws.amazon.com/Route53/latest/DeveloperGuide/routing-policy.html
Thx, Frank
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I think the best answer would be Route53 using Geo Location, but since that’s not an option in the answer list I would choose A for Route53 Weighted. The answer D doesn’t address any part of the question.
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Hang on. How can it be D? ELBs dont work across regions, only AZs
So I would pick A as well.
https://aws.amazon.com/elasticloadbalancing/
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As others have said, correct answer is A.
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IMO the answer is B, with weighted routing policy you can’t control what user can or can’t use the webserver in another region.
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My friend Juan, I hope you haven’t understood the concept of latency based routing. It depends upon the latency between the two regions to direct the traffic to the region which has least latency. Here, you don’t have control over the traffic that has been originated from the users because you can’t predict the latency. Whereas, weighted policy will help you control the portion of the traffic that has to be directed to the regions.
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Don’t fight it. The answer is
A.
Route53 record sets with weighted routing policy
It’s a trick question because the key term is controlled. Latency based routing is not controlled.
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for a controlled
portion of your traffic is being processed by an alternate region.
A.
Route53 record sets with weighted routing policy
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Q
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A
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A
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A
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its A because the question text says: “where a controlled portion of your traffic is being processed by an alternate region”. Look at http://docs.aws.amazon.com/Route53/latest/DeveloperGuide/routing-policy.html
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A
Weighted Routing Policy
Use the weighted routing policy when you have multiple resources that perform the same function (for example, web servers that serve the same website) and you want Amazon Route 53 to route traffic to those resources in proportions that you specify (for example, one quarter to one server and three quarters to the other). For more information about weighted resource record sets, see Weighted Routing.
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a
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A
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By default it is A.
But they have not defined what is being controlled – geo, latency, preferred customers. That can lead to different answer
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