IOT IoT Edge Computing 2 — Questions and Answers
Question 1: What is the key advantage of 'local breakout' in IoT edge architectures?
- Breaking devices out of their enclosures for maintenance
- Processing and responding to IoT events locally without sending traffic to the cloud, reducing latency and costs (Correct answer)
- Bypassing device security for emergency access
- Breaking out of vendor lock-in
Correct answer: Processing and responding to IoT events locally without sending traffic to the cloud, reducing latency and costs
Local breakout processes IoT data and makes decisions locally at the edge without routing traffic through the cloud, dramatically reducing latency and backhaul bandwidth costs.
Question 2: Which lightweight operating system or runtime is designed specifically for IoT edge and embedded devices?
- Ubuntu Server 22.04
- FreeRTOS (Correct answer)
- Windows Server 2022
- Red Hat Enterprise Linux
Correct answer: FreeRTOS
FreeRTOS is a real-time operating system (RTOS) designed for microcontrollers and small embedded IoT devices with constrained memory and processing resources.
Question 3: What is 'edge caching' used for in IoT systems?
- Caching device firmware at the cloud
- Storing frequently accessed or recent IoT data locally to reduce cloud queries and support offline operation (Correct answer)
- Caching user credentials on edge devices
- Pre-loading device drivers on edge hardware
Correct answer: Storing frequently accessed or recent IoT data locally to reduce cloud queries and support offline operation
Edge caching stores recent IoT data or frequently accessed configurations locally, allowing applications to function during connectivity outages and reducing cloud API calls.
Question 4: What is the purpose of 'time-sensitive networking' (TSN) in industrial IoT edge computing?
- Providing network-based time tracking for employee schedules
- IEEE standards that add deterministic, low-latency guarantees to Ethernet for real-time industrial control (Correct answer)
- Limiting the time IoT devices can stay connected
- Scheduling network maintenance windows
Correct answer: IEEE standards that add deterministic, low-latency guarantees to Ethernet for real-time industrial control
Time-Sensitive Networking (TSN) extends standard Ethernet with IEEE standards to provide bounded latency and deterministic delivery required for real-time industrial IoT control.
Question 5: Which edge computing concept involves training a shared machine learning model across multiple IoT edge devices without centralizing raw data?
- Centralized learning
- Transfer learning
- Federated learning (Correct answer)
- Reinforcement learning
Correct answer: Federated learning
Federated learning trains ML models collaboratively across IoT edge devices by sharing only model updates (not raw data), preserving data privacy.
Question 6: What is 'store and forward' capability important for in IoT edge deployments?
- Storing device logs and forwarding to auditors
- Buffering IoT data locally when cloud connectivity is lost and transmitting it when the connection is restored (Correct answer)
- Forwarding device management commands to subordinate devices
- Storing credentials for deferred authentication
Correct answer: Buffering IoT data locally when cloud connectivity is lost and transmitting it when the connection is restored
Store and forward allows IoT edge devices to buffer data locally during network outages and reliably deliver it to the cloud once connectivity is restored, ensuring no data loss.
IOT IoT Edge Computing 2
What is the key advantage of 'local breakout' in IoT edge architectures?