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What is the primary purpose of a CNAME record in DNS?

easy📝 Conceptual Q2 of 15
AWS - Route 53
What is the primary purpose of a CNAME record in DNS?
ATo point a domain to another domain name
BTo map a domain to an IPv4 address
CTo map a domain to an IPv6 address
DTo create an alias for an AWS resource
Step-by-Step Solution
Solution:
  1. Step 1: Understand CNAME record function

    CNAME records create an alias from one domain name to another domain name, not directly to IP addresses.
  2. Step 2: Differentiate from other record types

    A and AAAA records map to IP addresses, while Alias records are AWS-specific for resources.
  3. Final Answer:

    To point a domain to another domain name -> Option A
  4. Quick Check:

    CNAME = domain to domain alias [OK]
Quick Trick: CNAME points domain to domain, not IP [OK]
Common Mistakes:
  • Using CNAME to point directly to IP
  • Confusing Alias with CNAME
  • Thinking CNAME is AWS-only

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