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A customer is hosting their company website on a cluster of web servers that are behind a public-facing load
balancer. The customer also uses Amazon Route 53 to manage their public DNS. How should the customer
configure the DNS zone apex record to point to the load balancer?

A.
Create an A record pointing to the IP address of the load balancer

B.
Create a CNAME record pointing to the load balancer DNS name.

C.
Create a CNAME record aliased to the load balancer DNS name.

D.
Create an A record aliased to the load balancer DNS name

Explanation:

http://docs.aws.amazon.com/ElasticLoadBalancing/latest/DeveloperGuide/using-domain-names-with-elb.html

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