MX record priority increases as the number increases. (True/False.)

True is incorrect because MX preference values decrease in priority as the number increases - a value of 10 is preferred over a value of 20, the opposite of what the statement claims.

False is correct because MX preference values work inversely: a mail server with preference 10 is contacted before one with preference 20, meaning a lower number indicates higher priority. The statement in the question has the relationship reversed. Administrators assign lower numbers to preferred mail servers and higher numbers to fallback servers.