Q22Internet of Things
Question
Explain the concept of Edge and Fog computing in IoT. Why are they necessary despite the availability of Cloud computing? Provide an architectural overview.
Answer
Edge and Fog computing process data closer to the source, reducing latency and bandwidth constraints.
While Cloud computing offers immense power, sending all IoT data to the cloud incurs high latency, consumes massive bandwidth, and raises privacy concerns. Edge and Fog computing address these issues by bringing computation and storage closer to the data source.
Edge computing occurs directly on the device or immediate gateway, enabling real-time responses (e.g., autonomous vehicle braking). Fog computing extends cloud services to the edge of the network, typically at local nodes like routers, providing a hierarchical processing structure. This distributed approach ensures faster decision-making, offline capabilities, and reduced transmission costs.
