
EC-CouncilICS/SCADA Cybersecurity
Domain 2Objective 5
Components of TCP/IP Networks ICSSCADA Practice Questions (Page 4)
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 45 practice questions to prepare you well beyond it. (estimate)
45questions here
9free pages
8concepts
Questions 16–20
- 16
A small factory has a network with 10 OT devices connected to a single switch, which is connected to a router that provides access to the corporate network. The OT devices communicate with each other frequently. Which device is responsible for forwarding frames between the OT devices?
Select an answer first - 17
Which network device operates at Layer 1 of the OSI model and simply repeats incoming signals to all connected ports?
Select an answer first - 18
An engineer is configuring a new remote monitoring system that sends small, time-sensitive status updates every 100 ms from a field device to a central server. The updates are not critical if a few are lost, but latency must be minimized. Which transport protocol should the engineer select?
Select an answer first - 19
Which well-known port number is associated with HTTPS?
Select an answer first - 20
A plant's OT network uses a firewall to control traffic between the control network and the corporate network. The firewall is configured to allow only specific protocols. An engineer needs to allow a remote engineer to securely access a PLC's configuration interface using a command-line session. Which port should be allowed?
Select an answer first
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