XK0-005 Question #1772: Real Exam Question with Answer & Explanation

The correct answer is A: dig -x. The dig -x command performs a reverse DNS lookup, which takes an IP address and finds the associated domain name. The nslookup command can be used to perform a reverse DNS lookup as well. By providing the IP address to nslookup, it can return the corresponding domain name if a re

Troubleshooting

Question

An administrator found a suspicious public IP address in a log file. Which of the following commands can be used with the IP address to resolve back to a domain? (Choose two).

Options

Adig -x
Bdig
Cwhois
Dnslookup
Etraceroute -n
Fhostname

Explanation

The dig -x command performs a reverse DNS lookup, which takes an IP address and finds the associated domain name. The nslookup command can be used to perform a reverse DNS lookup as well. By providing the IP address to nslookup, it can return the corresponding domain name if a reverse DNS entry

Topics

#Reverse DNS#Network commands#DNS lookup tools#IP resolution

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