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Exam PT0-003 topic 1 question 50 discussion

Actual exam question from CompTIA's PT0-003
Question #: 50
Topic #: 1
[All PT0-003 Questions]

A client recently hired a penetration testing firm to conduct an assessment of their consumer-facing web application. Several days into the assessment, the client's networking team observes a substantial increase in DNS traffic. Which of the following would most likely explain the increase in DNS traffic?

  • A. Covert data exfiltration
  • B. URL spidering
  • C. HTML scrapping
  • D. DoS attack
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Suggested Answer: A 🗳️
by Wolf541 at March 26, 2025, 2:10 p.m.

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LandonSmith11
4 days, 2 hours ago
Selected Answer: A
While URL spidering (crawling the website to discover all its links) does generate HTTP requests, it primarily results in HTTP/S traffic, not a massive surge in DNS queries. DNS lookups are performed for the initial domain resolution, but subsequent requests to the same domain will often use cached DNS information.
upvoted 1 times
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AMGWheelman
2 weeks, 5 days ago
Selected Answer: A
DNS exfiltration works by encoding data into DNS queries and sending it to a malicious DNS server controlled by the attacker. The attacker can then decode the received DNS traffic to reconstruct the stolen data.
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Wolf541
3 weeks, 3 days ago
Selected Answer: B
Chat GPT said URL spidering and I talk with a professional they told me that DNS exfiltration doesn’t makes sense to them. Anyone have any ideas?
upvoted 1 times
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