200-901 · Question #26
In DNS, which record specifies an alias that refers to another name that ultimately resolves to an IP address?
The correct answer is D. CNAME. A CNAME (Canonical Name) record creates an alias that maps one domain name to another domain name, which is then resolved to an IP address. For example, 'www.example.com' can CNAME to 'example.com'. An A record maps a name directly to an IPv4 address. An AAAA record maps to an…
Question
In DNS, which record specifies an alias that refers to another name that ultimately resolves to an IP address?
Options
- AAAA
- BSOA
- CNS
- DCNAME
How the community answered
(47 responses)- A6% (3)
- C4% (2)
- D89% (42)
Explanation
A CNAME (Canonical Name) record creates an alias that maps one domain name to another domain name, which is then resolved to an IP address. For example, 'www.example.com' can CNAME to 'example.com'. An A record maps a name directly to an IPv4 address. An AAAA record maps to an IPv6 address (note: option A says 'AAA', likely a typo for AAAA). SOA (Start of Authority) contains administrative info about a zone. NS records specify the authoritative name servers for a domain.
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