Refer to the exhibit.
Which DNS Query Types pertains to email?
A.
A?
B.
NS?
C.
SOA?
D.
PTR?
E.
MX?
F.
TXT?
Which DNS Query Types pertains to email?
Refer to the exhibit.
Which DNS Query Types pertains to email?
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Refer to the exhibit.
Which DNS Query Types pertains to email?
Refer to the exhibit.
Which DNS Query Types pertains to email?
A.
A?
B.
NS?
C.
SOA?
D.
PTR?
E.
MX?
F.
TXT?
E is correct. MX queries are for Email.
When an e-mail message is sent through the Internet, the sending mail transfer agent (MTA) queries the Domain Name System for MX records of each recipient’s domain name. This query returns a list of host names of mail exchange servers accepting incoming mail for that domain and their preferences. The sending agent then attempts to establish an SMTP connection.
A? == Address record.
NS? == Delegates a DNS zone to use the given Authoritave name servers.
SOA? == Start of (a zone of ) authority record.
PTR? == Pointer record: pointer to a canonical name. (for reverse DNS lookups)
TXT? == Text record
Instead of memorizing look up what each one of the answer choices means and you guys saying there isn’t any right answer would have quickly came up with E as a right answer.