Using this technique. John successfully injected malware to bypass a firewall and maintained communication with the victim machine and CandC server. What is the technique employed by John to bypass the firewall?
A. DNS cache snooping
B. DNSSEC zone walking
C. DNS tunneling method
D. DNS enumeration
Answer:C
Using this technique. John successfully injected malware to bypass a firewall and maintained communication with the victim machine and CandC server. What is the technique employed by John to bypass the firewall?
A. DNS cache snooping B. DNSSEC zone walking C. DNS tunneling method D. DNS enumeration