Examtopics

AWS Certified SysOps Administrator - Associate

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Topic 1 Question 5
A company hosts its website on Amazon EC2 instances behind an Application Load Balancer. The company manages its DNS with Amazon Route 53, and wants to point its domain's zone apex to the website. Which type of record should be used to meet these requirements?
- An AAAA record for the domain's zone apex
- An A record for the domain's zone apex
- A CNAME record for the domain's zone apex
- An alias record for the domain's zone apex
解説
Reference: https://aws.amazon.com/route53/faqs/

ユーザの投票
コメント(10)
- Letter D is correct. Route 53 supports redirection of zone apex to the ALB via alias.
  
  https://docs.aws.amazon.com/Route53/latest/DeveloperGuide/resource-record-sets-choosing-alias-non-alias.html
  
  https://docs.aws.amazon.com/Route53/latest/DeveloperGuide/routing-to-elb-load-balancer.html
  
  👍 7
  FHU2021/10/21
- Answer is D. We should point an alias record to ALB, because alias can be used for naked domain name
  
  👍 2
  binhdt26112021/10/19
- Answer is D Can’t create a CNAME record for the top node of a DNS namespace (Zone Apex) • Example: you can’t create for example.com, but you can create for www.example.com
  
  👍 2
  696572022/01/19
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