Wireless Communication Protocols Questions

Understanding of wireless networking protocols and the design trade offs when using them in embedded and connected systems. Coverage includes local area and low power protocols such as Wi Fi, Bluetooth Low Energy (BLE), Zigbee, long range low power networks such as Long Range Wide Area Network (LoRaWAN), and cellular Internet of Things options including narrowband internet of things and LTE for machines. Candidates should be able to compare protocols in terms of range, data rate, latency, power consumption, cost, regulatory constraints, and complexity of implementation; explain protocol stack components, security considerations, and practical implementation challenges such as pairing, roaming, antenna design, and over the air updates; and justify protocol selection for scenarios like battery powered sensors, high throughput devices, or wide area deployments.