PT0-003: CompTIA PenTest+Demo

By CompTIA · Question Mode

QuestionQ180

Reconnaissance and Enumeration

During a penetration test for a client with a diverse infrastructure, a tester scans the network with Nmap and observes the following output:

Question Image

Which of the following is most likely the target device?

  • A Switch
  • B SCADA
  • C IoT
  • D Router
Explanation

MQTT commonly listens on TCP port 1883 and is a lightweight publish/subscribe messaging protocol widely used by IoT devices. The combination of MQTT with SSH and HTTP is consistent with an IoT device that provides messaging plus web and remote-administration services.

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