Node in this context is defined as what?

• A. An endpoint
• B. A router
• C. A hub
• D. A firewall

Answer: (A)

In this context, a node refers to the endpoint device—the device at the edge that the user interacts with to send and receive data, such as a computer, tablet, or smartphone used by patient or clinician. These are the actual end points of the telehealth session. The other options describe network infrastructure that moves or safeguards traffic (router, hub, firewall) rather than the user-facing devices, so they aren’t the intended meaning of a node here.