Cyber-Physical Systems Flashcards
7 cards from real SACA practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.
Read the first 7 Cyber-Physical Systems flashcards as text
In a CPS environment, what is the primary purpose of a digital twin?
Answer: To create a real-time virtual replica of a physical system for monitoring and simulation
A digital twin is a real-time virtual model of a physical system used for monitoring, simulation, and predictive analysis.
Which communication protocol is most commonly used for time-sensitive networking in industrial CPS applications?
Answer: IEEE 802.1 TSN (Time-Sensitive Networking)
IEEE 802.1 TSN provides deterministic, low-latency communication required for time-critical industrial CPS applications.
A manufacturing CPS detects an anomaly where sensor readings deviate significantly from the digital twin's predictions. What is the BEST immediate action?
Answer: Trigger an alert, log the event, and initiate a diagnostic routine
Triggering an alert, logging the anomaly, and running diagnostics allows root-cause analysis without unnecessary downtime.
What does 'holistic security' mean in the context of CPS design?
Answer: Applying security measures across physical, cyber, and human components simultaneously
Holistic CPS security addresses vulnerabilities across physical hardware, software/networks, and human factors together.
Which of the following BEST describes 'cyber-physical co-design'?
Answer: Concurrently designing computational and physical aspects to optimize their interaction
Cyber-physical co-design involves jointly developing computational and physical elements so each informs and optimizes the other throughout the process.
In a smart grid CPS, what is the role of a Phasor Measurement Unit (PMU)?
Answer: To provide high-frequency, GPS-synchronized measurements of voltage and current phasors
PMUs deliver GPS-synchronized, high-speed electrical measurements that enable real-time wide-area monitoring of the power grid.
What is a 'man-in-the-middle' (MitM) attack specifically dangerous for in CPS environments?
Answer: It allows an attacker to intercept and alter control commands between components, causing unintended physical actions
In CPS, a MitM attack can manipulate control signals between sensors, controllers, and actuators, potentially causing dangerous physical outcomes.