Certified Ethical Hacker (CEH v12) — Question 217

Being a Certified Ethical Hacker (CEH), a company has brought you on board to evaluate the safety measures in place for their network system. The company uses a network time protocol server in the demilitarized zone. During your enumeration, you decide to run a ntptrace command. Given the syntax: ntptrace [-n] [-m maxhosts] [servername/IP_address], which command usage would best serve your objective to find where the NTP server obtains the time from and to trace the list of NTP servers connected to the network?

Answer options

• A. ntptrace -n -m 5192.168.1.1
• B. ntptrace -m 5192.168.1.1
• C. ntptrace -n localhost
• D. ntptrace 192.168.1.1

Correct answer: D

Explanation

The correct answer is D because this command directly queries the NTP server at the specified IP address (192.168.1.1) to determine the upstream time sources. Options A and B incorrectly attempt to use an invalid IP format, and option C queries the localhost, which would not trace the external NTP servers.