EC-Council
312-50V13 · Question #582
As a Certified Ethical Hacker, you are conducting a footprinting and reconnaissance operation against a target organization. You discover a range of IP addresses associated with the target using the S
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Submitted by zhang_li· Mar 6, 2026Footprinting and Reconnaissance
Question
As a Certified Ethical Hacker, you are conducting a footprinting and reconnaissance operation against a target organization. You discover a range of IP addresses associated with the target using the SecurityTrails tool. Now, you need to perform a reverse DNS lookup on these IP addresses to find the associated domain names, as well as determine the nameservers and mail exchange (MX) records. Which of the following DNSRecon commands would be most effective for this purpose?
Options
- Adnsrecon -r 192.168.1.0/24 -n nsl.example.com -t axfr
- Bdnsrecon -r 10.0.0.0/24 -n nsl.example.com -t zonewalk
- Cdnsrecon -r 162.241.216.0/24 -n nsl.example.com -t std
- Ddnsrecon -r 162.241.216.0/24 -d example.com -t brt
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Topics
#Footprinting#Reconnaissance#DNSRecon#Reverse DNS