IEEE IoT Standards ISE Practice Questions (Page 8)

Questions 36–40

1. 36foundation · easy

   Why is the IEEE 802.15.4-2020 standard important for IoT developers?

   • AIt defines a new physical layer for 5G networks
   • BIt provides a single, updated reference for implementing low-power IoT communication
   • CIt specifies the security protocols for cloud computing
   • DIt provides a standard for wireless power transfer
   Reveal Solution Discussion Select an answer first
2. 37application · medium

   A smart agriculture company is deploying soil moisture sensors across a large farm. The sensors need to communicate over distances up to 1 km and operate on batteries for several years. The company wants to use Wi-Fi technology but needs better range and lower power consumption than standard Wi-Fi. Which IEEE 802.11 amendment should they use?

   • AIEEE 802.11n
   • BIEEE 802.11ac
   • CIEEE 802.11ah (Wi-Fi HaLow)
   • DIEEE 802.11ax (Wi-Fi 6)
   Reveal Solution Discussion Select an answer first
4. 38application · medium

   A building management system is being installed in an older office building. The system includes IP cameras, access control panels, and environmental sensors. The network team wants to use a single Ethernet cable to provide both network connectivity and electrical power to the devices, avoiding the need for separate power outlets. Which IEEE 802.3 variant should they use?

   • AIEEE 802.3ab (Gigabit Ethernet over copper)
   • BIEEE 802.3af (Power over Ethernet)
   • CIEEE 802.3bu (Power over Data Lines)
   • DIEEE 802.3an (10GBASE-T)
   Reveal Solution Discussion Select an answer first
5. 39expert · hard

   A company is designing a TSN network for a power grid substation. The network must carry time-critical protection messages and non-critical monitoring traffic. The protection messages require extremely low and predictable latency, while the monitoring traffic can tolerate some delay. The network engineer is considering implementing IEEE 802.1AS for time synchronization and IEEE 802.1Qbv for scheduled traffic. What is the most important consideration when configuring 802.1Qbv in this environment?

   • AThe time-aware shaper must be synchronized with a reliable time source, such as 802.1AS, to ensure accurate scheduling.
   • BThe network must use a ring topology to ensure redundancy.
   • CThe network must use fiber optic cables to reduce latency.
   • DThe monitoring traffic must be given higher priority than protection traffic.
   Reveal Solution Discussion Select an answer first
6. 40foundation · easy

   What is a key benefit of IEEE 802.1Qcc in IoT networks?

   • AIt provides time synchronization for devices
   • BIt enables automated configuration of TSN features
   • CIt enables wireless coexistence
   • DIt defines the physical layer for Ethernet
   Reveal Solution Discussion Select an answer first