EC-CouncilICS/SCADA Cybersecurity
Domain 2Objective 2
Internet RFCs and STDs ICSSCADA Practice Questions (Page 2)
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 38 practice questions to prepare you well beyond it. (estimate)
38questions here
8free pages
5concepts
Questions 6–10
- 6
Which RFC maturity level indicates that a specification has significant implementation and operational experience and is considered a stable, widely used standard?
Select an answer first - 7
An ICS engineer is troubleshooting intermittent communication failures between a master station and remote terminal units (RTUs). The RTUs are connected over a satellite link with high latency. The engineer suspects that the TCP implementation is not optimized for high-latency links. Which RFC should the engineer review for TCP performance considerations?
Select an answer first - 8
A protocol used in an ICS network is listed as 'Proposed Standard' in the RFC Editor's index. What does this status indicate about the protocol's maturity?
Select an answer first - 9
When a new RFC is published that replaces an older one, what status is assigned to the older RFC?
Select an answer first - 10
A control engineer is configuring a firewall rule to allow a remote engineer to access a PLC's web interface for diagnostics. The PLC listens on TCP port 80. Which RFC defines the protocol that the firewall must permit?
Select an answer first
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