What is the default STP priority for a switch in a VLAN configuration?

The default Spanning Tree Protocol (STP) priority for a switch in a VLAN configuration is set to 32768. In STP, the priority value is used to help determine which switch will become the root bridge. The switch with the lowest priority is elected as the root switch. If there are multiple switches with the same priority, the switch with the lowest MAC address will be chosen as the root bridge.

The default priority can be changed, but unless specified, all switches will start with this default value of 32768. This value is significant because it helps maintain a predictable configuration, particularly in networks where STP is essential for preventing loops and ensuring redundancy.

In the context of the choices provided, while 4096, 8192, and 24576 are possible values that could be set by an administrator, they do not represent the default setting. The importance of understanding these values lies in recognizing how priority configurations can be adjusted based on network design requirements, but the baseline default remains at 32768.