Difference between an A Rec and CNAME in Route53

Question

As Amazon Route 53 allows you to set an A record or a CNAME to a different sub-domain name using Alias, I am wondering what is the difference between A record and CNAME now.

Answer 1

I think you have wrong information. Amazon Route53 doesn't allow A records with subdomains. When I'm trying to set it to a domain name I'm getting an error:

The record set could not be saved because:
- The Value field contains invalid characters or is in an invalid format.

A records are for IP addresses only.