Final answer:
A switch uses address resolution to locate and load the iOS image. MAC addresses and an address table are used in this process.
Step-by-step explanation:
A switch uses a process called address resolution to locate and load the iOS image. This process involves mapping the MAC addresses of devices connected to the switch to their corresponding IP addresses. The switch maintains a MAC address table that stores this mapping information. When a switch receives a packet, it examines the destination MAC address and looks up its corresponding port in the MAC address table. The switch then forwards the packet to that port so that it reaches the intended device.