What is the default VLAN on an access port?
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A. B. C. D.B
The correct answer is B. 1.
VLAN stands for Virtual Local Area Network, and it is a logical group of devices that are isolated from other groups of devices within the same physical network. VLANs are typically configured on switches, and they allow network administrators to segment the network for security, scalability, and management purposes.
Access ports are switch ports that are used to connect end devices such as PCs, servers, or printers. When a device is connected to an access port, the switch port is assigned to a single VLAN. By default, that VLAN is VLAN 1.
When a switch receives an untagged frame on an access port, it forwards the frame to the VLAN associated with the port. If the port is not configured with a specific VLAN, it is assumed to be a member of VLAN 1.
It is important to note that VLAN 1 is the default VLAN on Cisco switches and cannot be deleted. Because of this, it is often recommended that VLAN 1 be unused or minimally used in production networks to avoid security risks associated with VLAN hopping or other attacks.
Therefore, the correct answer to the question is B. 1, as VLAN 1 is the default VLAN on an access port.