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Exam 200-201 All Questions

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Exam 200-201 topic 1 question 387 discussion

Actual exam question from Cisco's 200-201
Question #: 387
Topic #: 1
[All 200-201 Questions]

An analyst performs traffic analysis to detect data exfiltration and identifies a high frequency of DNS requests in a small period of time. Which technology makes this behavior feasible?

  • A. access control list
  • B. NAT
  • C. encryption
  • D. tunneling
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Suggested Answer: D 🗳️

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KevinCondor
7 months, 2 weeks ago
Selected Answer: D
In the context of detecting data exfiltration, tunnels can be used to encapsulate and hide network traffic within another protocol, such as DNS. This allows attackers to transfer data out of a network without being easily detected, as DNS traffic is common and often not closely inspected for performance reasons. The high number of DNS requests in a short period of time could be indicative of an attempt at covert data exfiltration using DNS tunnels, where data is hidden within DNS traffic to avoid detection.
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