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Which feature is added by IEEE 802.15.4e to enhance communication reliability and security in IoT networks?

22. Which feature is added by IEEE 802.15.4e to enhance communication reliability and security in IoT networks?

1. Long-range communication
2. Time-slotted channel access (TSCH)
3. Low data rate
4. Support for multiple topologies

Answer

The correct answer is: B) Time-slotted channel access (TSCH)

Explanation

IEEE 802.15.4e introduces TSCH, allowing devices to coordinate transmissions to avoid collisions and improve reliability, enhancing communication in industrial automation and smart city applications.