What is a characteristic of an SSID on a wireless LAN?

The correct answer is "assigns the network name for a WLAN" because the Service Set Identifier (SSID) is the human-readable name that identifies a wireless network to users. When you scan for available Wi-Fi networks, you see a list of SSIDs. "Enforces policies to block unauthorized users" is incorrect because while an SSID can be hidden (not broadcast), the SSID itself doesn't enforce security policies; security protocols like WPA2/3 handle authentication and encryption. "Identifies an access point on the WLAN" is incorrect because while an SSID is associated with an access point, it identifies the network, not the individual access point. Multiple access points can broadcast the same SSID to create a single, larger wireless network. "Prompts clients for a login ID" is incorrect because an SSID does not directly prompt for login credentials; that function is handled by security protocols (like WPA2/3 pre-shared keys or enterprise authentication) after a client attempts to connect to the network identified by the SSID.