Question of the Week 3
D. An additional broadcast domain will be created.
Answer to the Question
Number of collision domains = Number of Ports on a switch
Number of Broadcast domains = Number of Vlans on a switch
VLAN stands for Virtual Local Area Network. It is a technology to break down a single broadcast domain into multiple broadcast domains. This technology divides a Physical LAN into more Logical LANs. VLAN technology is used to solve the problem that switches can’t limit broadcast within the LAN. BY default, all ports are member of VLAN 1 and this is the reason that broadcast message will be received and processed by every port.
A VLAN can be thought of as a broadcast domain. The broadcast or flooded traffic originated from a particular VLAN will be flooded out ports belonging to that VLAN, including trunk ports. This is why hosts within a VLAN normally communicate while communication cannot be achieved between VLANs directly.
Broadcast Domain = VLAN = SUBNET