Cisco
350-701 · Question #547
What are two recommended approaches to stop DNS tunneling for data exfiltration and command and control call backs? (Choose two.)
The correct answer is A. Use Cisco Umbrella E. Enforce security over port 53. https://umbrella.cisco.com/blog/improvements-dns-tunneling-dns-exfiltration-detection
Submitted by anna_se· Mar 30, 2026Network Security
Question
What are two recommended approaches to stop DNS tunneling for data exfiltration and command and control call backs? (Choose two.)
Options
- AUse Cisco Umbrella
- BUse next generation firewalls.
- CBlock all 'TXT' DNS records.
- DUse intrusion prevention system.
- EEnforce security over port 53.
How the community answered
(48 responses)- A75% (36)
- B15% (7)
- C6% (3)
- D4% (2)
Explanation
https://umbrella.cisco.com/blog/improvements-dns-tunneling-dns-exfiltration-detection
Topics
#DNS tunneling#data exfiltration#Cisco Umbrella#DNS security
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