CompTIA PenTest+ (PT0-003) — Question 11

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?

Answer options

• A. Covert data exfiltration
• B. URL spidering
• C. HTML scrapping
• D. DoS attack

Correct answer: A

Explanation

The correct answer is A, as covert data exfiltration often involves the use of DNS queries to send sensitive data out of the network, which would lead to an increase in DNS traffic. The other options, while related to web assessments, do not typically result in a significant increase in DNS traffic like data exfiltration does.