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Question 788 - SAP-C01 discussion

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You have a website which requires international presence and consequently you have set it up as follows. It is hosted on 30 EC2 instances.

It is on in 15 regions around the globe. Each region has 2 instances. All the instances are a public hosted zone. Which of the following is the best way to configure your site to maintain availability with minimum downtime if one of the 15 regions was to lose network connectivity for an extended period? (Choose two.)

A.
Create a Route 53 Latency Based Routing Record set that resolves to an Elastic Load Balancer in each region and has the Evaluate Target Health flag set to true.
Answers
A.
Create a Route 53 Latency Based Routing Record set that resolves to an Elastic Load Balancer in each region and has the Evaluate Target Health flag set to true.
B.
Create a Route 53 failover routing policy and configure an active-passive failover.
Answers
B.
Create a Route 53 failover routing policy and configure an active-passive failover.
C.
Create a Route 53 Failover Routing Policy and assign each resource record set a unique identifier and a relative weight.
Answers
C.
Create a Route 53 Failover Routing Policy and assign each resource record set a unique identifier and a relative weight.
D.
Create a Route 53 Geolocation Routing Policy that resolves to an Elastic Load Balancer in each region and has the Evaluate Target Health flag set to false.
Answers
D.
Create a Route 53 Geolocation Routing Policy that resolves to an Elastic Load Balancer in each region and has the Evaluate Target Health flag set to false.
Suggested answer: A, B

Explanation:

It is best to use the latency routing policy when you have resources in multiple Amazon EC2 data centers that perform the same function and you want Amazon Route 53 to respond to DNS queries with the resources that provide the best latency.

You could also use the failover routing policy (for public hosted zones only) when you want to configure an active-passive failover, in which one resource takes all traffic when it's available and the other resource takes all traffic when the first resource isn't available.

Reference: http://docs.aws.amazon.com/Route53/latest/DeveloperGuide/routing-policy.html#routing-policy-latency

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asked 16/09/2024
Sharos Ramcharan
21 questions
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