Answer:
The correct answer is B
Step-by-step explanation:
The impact of a failure domain in a network is determined by the role or position of the malfunctioning device within the network. A failure domain refers to the portion of a network where a failure or malfunction can occur and affect the connectivity or operation of devices within that domain.
If a critical device or component fails within a network, it can have a significant impact on the functionality of other devices or the entire network. The role of the malfunctioning device, such as a core router or a key switch, determines the scope and severity of the failure domain.
For example, if a core router fails, it can result in the loss of connectivity for multiple devices and services that rely on that router for network access. On the other hand, if a device at the edge or access layer of the network fails, the impact may be limited to a smaller number of users or devices directly connected to that access point.