Requirements Drive Decisions: The decision between wired or wireless must align with the solution's overall purpose, performance targets, and operational constraints.
Key Considerations:
Reliability: Does the application require guaranteed connectivity? (Wired may be favored).
Installation Cost: Can extensive cabling be done, or is it prohibitively expensive? (Wireless may be favored).
Flexibility and Scalability: Is node placement likely to change in the future? (Wireless may be favored).
Other Factors are Important, But Secondary: Distance, PoE availability, specific applications all matter, but they are assessed within the context of the overarching business needs.
References:
Wireless vs. Wired Network Design: Comparisons of pros and cons, highlighting how use cases guide the choice.
IoT Solution Planning: Materials on defining requirements before selecting technology.

Cloud Connectivity Relies on IP: Most cloud-based services operate via the internet, which utilizes Internet Protocol (IP) at Layer 3 of the network model.
Flexibility: Various Layer 2 technologies (Ethernet, Wi-Fi) can connect to a Layer 3 network that ultimately provides Internet access BLE Exception: Bluetooth Low Energy can have cloud connectivity, but often through gateways and not as a direct Layer 2 connection.
Eliminating Incorrect Options: IPX/SPX is an outdated protocol, and cellular is only one possible way to achieve Internet access.
References:
OSI Model: Descriptions of Network Layers, especially Layer 2 (Data Link) and Layer 3 (Network).
Cloud Architecture: Diagrams showing how devices commonly access cloud resources through internet-based infrastructures.

Coexistence Priority: Frequency coordination is the most critical aspect in ensuring that multiple wireless solutions function without significant interference.
Impact of Interference: Uncoordinated frequencies lead to:
Signal degradation: Reduced network performance and reliability.
Data errors and retransmissions: Inefficient operation and higher battery drain on devices.

Firmware Definition: Firmware is a type of software embedded in hardware devices. It provides low-level instructions that control the basic operations and initialization of the device.
ROM Storage: Firmware is typically stored in Read-Only Memory (ROM) or other forms of non-volatile memory, meaning it persists even when the device is powered off.
Functions:
Booting: Initiates the hardware and loads the operating system.
Hardware Control: Provides an interface between the hardware and the operating system.
BIOS: The firmware on PCs is often referred to as BIOS (Basic Input/Output System).
References
Firmware Reference: https://en.wikipedia.org/wiki/Firmware
ROM: https://en.wikipedia.org/wiki/Read-only_memory

Overlay vs. Integrated Monitoring:
Overlay: A separate monitoring system independent of the primary wireless infrastructure.
Integrated: Monitoring functions built into wireless access points or controllers.
Overlay Advantage: Since the overlay system is separate, it doesn't add overhead or complexity to the core network, avoiding potential disruption of wireless services.