A medical wearable must monitor a patient's heart rate and raise an alarm within 50 ms of an anomaly. It has a 64 MHz MCU with 256 KB RAM and a 1 Ah battery that must last 30 days. The team is choosing between a tickless RTOS with deep sleep and a general-purpose OS with a standard scheduler. Which choice best satisfies both the real-time alarm and battery life requirements?

A bare-metal loop that polls the heart rate sensor continuously

A lightweight embedded OS with cooperative scheduling and sleep modes

A general-purpose OS with a priority-based scheduler and a low-power idle state

A tickless RTOS with a preemptive priority scheduler and deep-sleep support

A robotics team is building a drone flight controller that must process sensor data and adjust motors every 1 ms. They also need to run a high-level vision algorithm that is not time-critical. Which OS architecture best meets both needs?

A real-time OS for the motor control and a separate general-purpose OS for the vision algorithm

A lightweight embedded OS with a cooperative scheduler

A bare-metal loop that alternates between motor control and vision processing

A single general-purpose OS running all tasks with equal priority

EC-CouncilIoT Security Essentials

Domain 2Objective 2

IoT Operating Systems ISE Practice Questions (Page 9)

Part of the IoT Hardware and Platforms domain, which makes up ~18% of our current practice bank. EC-Council does not publish an official question count, but from its 120-minute exam (~50–80 total, ~9–14 in this domain), expect 2–4 from this objective — we provide 44 practice questions to prepare you well beyond it. (estimate)

44questions here

9free pages

8concepts

Questions 41–44

41foundation · easy
In a real-time operating system, what is the term for a unit of work that is scheduled and executed?
Select an answer first
42foundation · easy
Which protocol stack is commonly integrated into IoT operating systems for low-power wireless communication?
Select an answer first
43expert · hard
A medical wearable must monitor a patient's heart rate and raise an alarm within 50 ms of an anomaly. It has a 64 MHz MCU with 256 KB RAM and a 1 Ah battery that must last 30 days. The team is choosing between a tickless RTOS with deep sleep and a general-purpose OS with a standard scheduler. Which choice best satisfies both the real-time alarm and battery life requirements?
Select an answer first
44application · hard
A robotics team is building a drone flight controller that must process sensor data and adjust motors every 1 ms. They also need to run a high-level vision algorithm that is not time-critical. Which OS architecture best meets both needs?
Select an answer first

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IoT Operating Systems ISE Practice Questions (Page 9)

Questions 41–44

In a real-time operating system, what is the term for a unit of work that is scheduled and executed?

Which protocol stack is commonly integrated into IoT operating systems for low-power wireless communication?

A robotics team is building a drone flight controller that must process sensor data and adjust motors every 1 ms. They also need to run a high-level vision algorithm that is not time-critical. Which OS architecture best meets both needs?

Keep studying — IoT Hardware and Platforms