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Exam AWS Certified SysOps Administrator - Associate topic 1 question 5 discussion

Exam question from Amazon's AWS Certified SysOps Administrator - Associate

Question #: 5
Topic #: 1

[All AWS Certified SysOps Administrator - Associate Questions]

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?

A. An AAAA record for the domain's zone apex
B. An A record for the domain's zone apex
C. A CNAME record for the domain's zone apex
D. An alias record for the domain's zone apex

Show Suggested Answer

Suggested Answer: D 🗳️

by binhdt2611 at April 27, 2021, 11:13 p.m.

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FHU

Highly Voted 3 years, 9 months ago

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

upvoted 13 times

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Pushkar252

Most Recent 1 month ago

Selected Answer: D

Use Alias A when you wanted the apex zone in the AWS hosted services and CNAME when you wanted to host the domain in another website.

upvoted 1 times

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renatom1976

3 months ago

Selected Answer: D

D is the correct. This question is identical and I failed chosing B.

upvoted 1 times

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ogum

6 months, 1 week ago

Selected Answer: D

D. An alias record for the domain's zone apex

upvoted 1 times

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Rabbit117

10 months, 3 weeks ago

Selected Answer: D

D is the correct answer. The DNS protocol does not allow you to create a CNAME record for the top node of a DNS namespace, also known as the zone apex. For example, if you register the DNS name example.com, the zone apex is example.com. You cannot create a CNAME record for example.com, but you can create CNAME records for www.example.com, newproduct.example.com, and so on. Amazon Route 53 also supports alias records, which allow you to route queries to selected AWS resources, such as CloudFront distributions and Amazon S3 buckets. Aliases are similar in some ways to the CNAME record type; however, you can create an alias for the zone apex. For more information, see Choosing between alias and non-alias records. https://docs.aws.amazon.com/Route53/latest/DeveloperGuide/ResourceRecordTypes.html#CNAMEFormat

upvoted 4 times

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64rl0

11 months, 1 week ago

Selected Answer: D

Answer is D

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pedroyrosa5700

1 year, 5 months ago

D IS CORRECT

upvoted 1 times

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bruppp31

1 year, 9 months ago

D. The alias record is used to route the domains top node i.e zone apex i.e. example.com. You can't create a CNAME record for the top node and A and AAAA records are for routing to IPv4 and IPv6 respectively

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NAVADIYA

1 year, 9 months ago

D. An alias record for the domain's zone apex

upvoted 1 times

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nolly222

1 year, 11 months ago

Selected Answer: D

answer is D

upvoted 1 times

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shivangee

2 years ago

An A record for the domain's zone apex answer B correct answer

upvoted 1 times

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shivangee

2 years ago

answer B

upvoted 1 times

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Christina666

2 years ago

Selected Answer: D

The DNS protocol does not allow you to create a CNAME record for the top node of a DNS namespace, also known as the zone apex. For example, if you register the DNS name example.com, the zone apex is example.com. You cannot create a CNAME record for example.com, but you can create CNAME records for www.example.com, newproduct.example.com, and so on. In addition, if you create a CNAME record for a subdomain, you cannot create any other records for that subdomain. For example, if you create a CNAME for www.example.com, you cannot create any other records for which the value of the Name field is www.example.com.

upvoted 1 times

Christina666

2 years ago

Unlike a CNAME record, you can create an alias record at the top node of a DNS namespace, also known as the zone apex. For example, if you register the DNS name example.com, the zone apex is example.com. You can't create a CNAME record for example.com, but you can create an alias record for example.com that routes traffic to www.example.com (as long as the record type for www.example.com is not of type CNAME).

upvoted 3 times

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