Final answer:
A unique WLAN identifier or wireless network name is known as an SSID. It is used to uniquely identify different wireless networks and is distinct from an IP address, MAC address, or DNS server.
Step-by-step explanation:
The unique WLAN identifier, commonly referred to as the wireless network name, is called a(n) SSID (Service Set Identifier). The SSID is a unique ID that is used to name wireless networks. When you are searching for Wi-Fi networks, the name you see is the SSID. It differs from other identifiers such as the IP address, which is a unique string of numbers that identifies a device on a network; MAC address, which is a hardware identifier for a network interface; and DNS server, which translates domain names to IP addresses.