Cisco
350-701 · Question #456
Which type of data exfiltration technique encodes data in outbound DNS requests to specific servers and can be stopped by Cisco Umbrella?
The correct answer is A. DNS tunneling. https://umbrella.cisco.com/blog/improvements-dns-tunneling-dns-exfiltration-detection
Submitted by mateo_ar· Mar 30, 2026Content Security
Question
Which type of data exfiltration technique encodes data in outbound DNS requests to specific servers and can be stopped by Cisco Umbrella?
Options
- ADNS tunneling
- BDNS flood attack
- Ccache poisoning
- DDNS hijacking
How the community answered
(37 responses)- A89% (33)
- B5% (2)
- C3% (1)
- D3% (1)
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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