Cisco IoT Essentials for System Engineers

Answer: C, E IoT SD-WAN commonly supports distributed field devices and remote industrial sites through centralized, hub-and-spoke connectivity. These deployments often operate in harsh outdoor or industrial environments, so they use ruggedized WAN equipment designed to tolerate factors such as temperature extremes, shock, and vibration. **Learn more:** [Cisco Extended Enterprise SD-WAN with IR1101 Solution Overview](https://www.cisco.com/c/en/us/solutions/collateral/enterprise/design-zone-industry-solutions/solution-overview-c22-743249.html)

Answer: D IE3400 power-supply selection must account for whether PoE is needed and whether the installation provides AC or DC source power. Cisco supports both AC-input and DC-input external supplies with PoE/PoE+ capability; the appropriate supply therefore depends on those customer and site requirements. **Learn more:** [Cisco Catalyst IE3400 Rugged Series Data Sheet](https://www.cisco.com/c/en/us/products/collateral/switches/catalyst-ie3400-rugged-series/cat-ie3400-rugged-series-ds.html)

Answer: C Cisco IOx support provides an edge application environment on the IW6300 for applications and services developed by Cisco partners and third-party developers, enabling third-party sensor-network integration. **Learn more:** [Cisco Catalyst IW6300 Embedded Services Access Point Software Configuration Guide](https://www.cisco.com/c/en/us/td/docs/wireless/outdoor_industrial/iw6300/software/config/guide/b_iw6300_scg.html)