312-50V13 · Question #85
MX record priority increases as the number increases. (True/False.)
The correct answer is B. False. In DNS MX (Mail Exchanger) records, priority is inverse, meaning a lower preference number indicates a higher priority for mail delivery.
Question
Options
- ATrue
- BFalse
How the community answered
(23 responses)- A9% (2)
- B91% (21)
Why each option
In DNS MX (Mail Exchanger) records, priority is inverse, meaning a lower preference number indicates a higher priority for mail delivery.
This statement is incorrect because a higher MX preference number signifies a lower priority, meaning mail servers will attempt to deliver to MX records with lower numbers first.
MX record preference numbers work inversely: a lower number indicates a higher priority. Mail servers attempt to deliver email to the MX record with the lowest preference number first, and if that server is unavailable, they proceed to the next lowest number.
Concept tested: DNS MX record priority
Source: https://www.ietf.org/rfc/rfc1035.txt
Topics
Community Discussion
No community discussion yet for this question.