Q: 2
A company has a microservice that runs on a set of Amazon EC2 instances. The EC2 instances run
behind an Application Load Balancer (ALB).
A CloudOps engineer must use Amazon Route 53 to create a record that maps the ALB URL to
example.com.
Which type of record will meet this requirement?
Options
Discussion
Option C If it was a subdomain like www.example.com instead of the apex, D would work, but zone apex needs alias.
C
It’s C. You can’t use a CNAME at the root/apex like example.com, so alias record is the AWS way for this scenario. D throws people off since it works only for subdomains not zone apex. Pretty sure, but open to corrections.
Nah, D is a trap since CNAME can't be used at the zone apex. It's C for sure.
Makes sense to me that C is the right pick here. Alias records are what let Route 53 point to AWS resources from the root domain, and you can't use CNAME for apex like example.com. I think that's exactly what they're looking for.
C not D. CNAME looks tempting but it's no-go for zone apex, so alias record is the right pick here. Pretty sure this is what AWS expects for root domains.
Not D, it has to be C. CNAME looks tempting but zone apex can't use CNAME, only alias works in Route 53 for domains like example.com. Seen folks pick D on practice, so watch out for that trap.
Alias record is what Route 53 supports for root domains like example.com, not CNAME. So C fits. Seen this catch folks out on practice exams. Correct me if you think otherwise but that's how AWS does it.
D or C? I keep mixing these up since CNAME feels right but Route 53 has alias records. Anyone else pick D?
I don’t think D is right here since CNAME at the apex isn’t supported. Pretty sure it’s C, especially for mapping example.com to an ALB in Route 53.
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