CompTIA Security Exam Practice Questions Sample SY0 501 Q401

A penetration tester is conducting an assessment on and runs the following command from a coffee shop while connected to the public Internet: c:\nslookup -querytype=MX
Server: Unknown

Address: MX preference=10, mail exchanger = MX preference=20, mail exchanger = internet address =

Which of the following should the penetration tester conclude about the command output?

A. The public/private views on the DNS servers are misconfigured.
B. is running an older mail server, which may be vulnerable to exploits.
C. The DNS SPF records have not been updated for
D. is a backup mail server that may be more vulnerable to attack.

Correct Answer: D