A switch is configured with all ports assigned to VLAN 2. In addition, all ports are configured as full-duplex FastEthernet.
What is the effect of adding switch ports to a new VLAN on this switch?
Click on the arrows to vote for the correct answerA. B. C. D.
We have the same number of ports on the switch, and each port is its own collision domain, so the number of collision domains remains unchanged. However, each VLAN is its own broadcast domain, so the number of broadcast domains will increase (B).
Option B is the correct answer: An additional broadcast domain will be created.
Explanation: When all ports on a switch are assigned to the same VLAN, they all belong to the same broadcast domain. Broadcasts, multicasts, and unknown unicast packets are flooded to all ports in the VLAN. However, when a switch port is added to a new VLAN, it becomes part of a different broadcast domain. This means that broadcasts, multicasts, and unknown unicast packets sent by hosts in one VLAN will not be forwarded to hosts in another VLAN. This reduces unnecessary traffic and improves network performance.
Option A is incorrect because adding switch ports to a new VLAN does not create more collision domains. In a switched network, each switch port is its own collision domain.
Option C is incorrect because adding switch ports to a new VLAN does not necessarily require more bandwidth than before. Bandwidth requirements depend on the amount and type of traffic being sent and received by the hosts in each VLAN.
Option D is incorrect because adding switch ports to a new VLAN does not directly affect IP address utilization. IP address utilization depends on the number of hosts in each VLAN and the IP addressing scheme being used.