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EC-CouncilICS/SCADA Cybersecurity

Domain 2Objective 4

Protocol Layering Concepts and TCP/IP Layering ICSSCADA Practice Questions (Page 5)

Part of the TCP/IP and ICS/SCADA Protocols domain, which makes up ~13% of our current practice bank. EC-Council does not publish an official question count, but from its 120-minute exam (~50–80 total, ~7–10 in this domain), expect 1–2 from this objective — we provide 32 practice questions to prepare you well beyond it. (estimate)

32questions here
7free pages
6concepts

Questions 21–25

  1. 21foundation · easy

    Which OSI layer is responsible for establishing, managing, and terminating sessions between two communicating applications?

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  2. 22application · medium

    A security analyst is reviewing a packet capture from a compromised HMI. The analyst notices that the HMI is sending data to a remote server using TLS on TCP port 443. The analyst wants to identify which OSI layer is responsible for encrypting the data before it is passed to the transport layer. Which OSI layer performs this function?

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  3. 23foundation · easy

    What is the primary role of the Transport layer protocol (e.g., TCP) in the context of the overall protocol stack?

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  4. 24foundation · easy

    Which layer of the TCP/IP model is responsible for logical addressing and routing of packets between different networks?

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  5. 25expert · hard

    A network capture shows a TCP segment that is 1460 bytes long. The segment is encapsulated in an IP packet, which is then encapsulated in an Ethernet frame. The engineer notices that the IP packet has the 'Don't Fragment' flag set. What is the maximum size of the IP packet (including the IP header) that can be transmitted without fragmentation on an Ethernet network with a 1500-byte MTU?

    Select an answer first
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Full ICSSCADA curriculum →Every domain, objective & concept — with linked practiceICSSCADA exam overview →EC-Council ICS/SCADA Cybersecurity

Other objectives in TCP/IP and ICS/SCADA Protocols

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