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My network provider sent me a CSV export of records for my domain, which has several dozen server/site names. Some of the names are listed as "A Record" while others are "Host Address". When I use dig, both of those display as IN A records. The file also contains a mix of "CNAME Record" and "Host Alias" entries, both of which correspond to IN CNAME.
A previous question here says this indicates a DDI system. The results are indistinguishable from the DNS consumer's point of view (e.g. me, my users). So my question is, what is the difference from the DNS provider's point of view? Why should they choose one vs the other?
FWIW, I could not see a pattern behind which names had which type of record (e.g. site vs server, standalone vs shared, linux vs windows). For example, one of our bigger servers has multiple As and multiple HOSTs (plus some CNAMEs).