Roaming refers to the ability of a wireless device to keep its network connection active as it transitions from the coverage area of one access point to another within the same local area network. This process is crucial for ensuring seamless connectivity, particularly in environments like offices and large buildings where users and devices are mobile. Different SSIDs or networks are not related to this automatic process; thus, these options are incorrect. Band steering is a technique used to move devices between different frequency bands (e.g., 2.4GHz and 5GHz) for better performance, not for maintaining a continuous network connection during movement.