OPC UA security explained: application instance certificates, trust lists, GDS push/pull, security policies, user tokens, and a hardening checklist for plants.
Digital twin VVUQ explained: verification vs validation, uncertainty quantification, calibration, model-fidelity metrics and how to build trust in twin.
Satellite IoT compared: 3GPP NB-IoT NTN, LoRa-based satellite networks, and direct-to-device options, with link budgets, latency, power, cost models and a.
Wi-Fi HaLow 802.11ah compared with LoRaWAN and LTE-M: sub-GHz PHY, range, throughput, power, target wake time, certification status and which long-range.