Which of the following DNS records would be queried to locate a companys mail server?
A.
A
B.
MX
C.
AAAA
D.
CNAME
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Delegation Name (DNAME) creates an alias for a name and all its subnames, unlike CNAME, which aliases only the exact name in its label. Like the CNAME record, the DNS lookup will continue by retrying the lookup with the new name.
Address (A)record- Returns a 32-bit IPv4 address, most commonly used to map hostnames to an IP address of the host, but also used for DNSBLs, storing subnet masks in RFC 1101, etc.
AAAA- Pv6 address record Returns a 128-bit IPv6 address, most commonly used to map hostnames to an IP address of the host.
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