EC-CouncilIoT Security Essentials
Domain 1Objective 3
OSI and TCP Models ISE Practice Questions (Page 2)
Part of the IoT Fundamentals and Networking domain, which makes up ~15% of our current practice bank. EC-Council does not publish an official question count, but from its 120-minute exam (~50–80 total, ~8–12 in this domain), expect 2–3 from this objective — we provide 27 practice questions to prepare you well beyond it. (estimate)
27questions here
6free pages
6concepts
Questions 6–10
- 6
A network engineer is designing a training program for new IoT technicians. The program must explain how data moves from a sensor to a cloud application. Which approach best clarifies the relationship between the OSI and TCP/IP models?
Select an answer first - 7
When a device receives a frame from the network, what is the correct order of de-encapsulation in the TCP/IP model?
Select an answer first - 8
A smart lock sends a status update to a mobile app. The application creates a JSON payload, which is then wrapped in a TCP segment, then an IP packet, and finally an Ethernet frame. Which TCP/IP layer is responsible for adding the TCP header?
Select an answer first - 9
Which protocol operates at the transport layer of the TCP/IP model and provides connection-oriented, reliable data delivery?
Select an answer first - 10
A network engineer is documenting a legacy SCADA system that uses a proprietary protocol directly over Ethernet. The engineer needs to map this protocol to the OSI model. Which OSI layers are most directly involved when the proprietary protocol sends data directly over Ethernet frames?
Select an answer first
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