ICS SCADA Practice Questions - EC-Council ICS SCADA Cybersecurity Exam - ICS SCADA Practice Questions

Question 1

What is the priority triad used in OT/ICS security, and how does it differ from the IT CIA triad?

CIA — Confidentiality, Integrity, Availability (same as IT) AIC — Availability, Integrity, Confidentiality (reordered IT triad) SIA — Safety, Integrity, Availability (safety is the top priority) ASR — Availability, Speed, Reliability

Correct Answer:

SIA — Safety, Integrity, Availability (safety is the top priority)

Question 2

Which of the following is the most important reason patching is more difficult in OT environments than in IT?

OT vendors do not release patches Production downtime to apply patches is often unacceptable and patches must be vendor-validated OT systems are immune to vulnerabilities Only the vendor is allowed to install patches by law

Correct Answer:

Production downtime to apply patches is often unacceptable and patches must be vendor-validated

Question 3

Which lifecycle duration is most typical for industrial control system equipment compared with enterprise IT equipment?

1-2 years for ICS, similar to laptops 3-5 years for ICS, similar to servers 15-30 years for ICS, much longer than IT ICS equipment is replaced annually

Correct Answer:

15-30 years for ICS, much longer than IT

Question 4

Which OT operational requirement is the primary reason that traditional IT antivirus scanning is often disabled or restricted on engineering workstations and HMI servers?

Antivirus software is illegal in OT Real-time control loops cannot tolerate scan-induced CPU spikes or false positives OT systems do not get malware Antivirus is only needed on email servers

Correct Answer:

Real-time control loops cannot tolerate scan-induced CPU spikes or false positives

Question 5

In an OT environment, which event is generally considered the WORST possible outcome of a cybersecurity incident?

Loss of data confidentiality Brief degradation of plant performance Loss of safety leading to injury, death, or environmental damage An auditor finding a missing log

Correct Answer:

Loss of safety leading to injury, death, or environmental damage

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About this Exam

Prepare with the ICS SCADA Practice Questions - EC-Council ICS SCADA Cybersecurity Exam practice quiz. This question bank includes 100 questions covering control, industrial, networks, device, and level. Use it to review important concepts, identify knowledge gaps, and build confidence for the related exam, course, or assessment.

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ICS SCADA Practice Questions - EC-Council ICS SCADA Cybersecurity Exam

This practice set contains 100 questions from the matching question bank and focuses on control, industrial, networks, device, and level. Work through each question carefully, review the provided solutions, and revisit topics that need more study before your next attempt.

This is an independent study resource intended for practice and review; it is not an official examination or an endorsement by any organization named in the title.

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ICS SCADA Practice Questions - EC-Council ICS SCADA Cybersecurity Exam

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