QUESTION: 17
You are evaluating the planned deployment of the additional Exchange Server 2013 servers. You need to recommend changes to the DNS records to ensure that email messages are
routed to the Detroit site if the servers in the New York site are unavailable. What should you recommend adding?
A. An MX record that has a preference value of 10 that points to EX4
B. An MX record that has a preference value of 20 that points to EX4
C. An MX record that has a preference value of 10 that points to EX3
D. An MX record that has a preference value of 20 that points to EX3
Answer: B
Explanation:
Configure Exchange to Accept Mail for Multiple Authoritative Domains:
Exchange 2013 Help
MX (mail exchange) Specifies a mail exchange server for the domain, which allows mail to be delivered to the correct mail servers in the domain. Managing DNS Records.
