Interview Q&A / Computer Networks
Computer Networks interview questions
What happens when you open a website, TCP vs UDP, DNS and HTTP.
Prefer rapid revision? Practise Computer Networks short interview answers →
- Why can you not put a CNAME record on the root domain, such as example.com?
A CNAME means this name is an alias for another name, so no other record may exist at it. The root of a zone must also hold NS and SOA records, so a CNAME there would conflict. Providers offer ALIAS, ANAME or CNAME flattening as a workaround.
AdvancedQuick answer1 min read