nerdexam
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)
  • A
    89% (33)
  • B
    5% (2)
  • C
    3% (1)
  • D
    3% (1)

Explanation

https://umbrella.cisco.com/blog/improvements-dns-tunneling-dns-exfiltration-detection

Topics

#DNS tunneling#data exfiltration#Cisco Umbrella#DNS security

Community Discussion

No community discussion yet for this question.

Full 350-701 Practice