An administrator is redesigning a campus network and wants to reduce the likelihood of collisions on each segment while also minimizing the number of devices that receive every broadcast frame. Which network device should be deployed and configured with VLANs to meet both goals?
A Layer 2 switch creates a separate collision domain on every port, so frames are forwarded only to the intended interface rather than to all connected devices. When VLANs are configured, the switch also establishes separate broadcast domains, ensuring that broadcast traffic is contained within each VLAN and not forwarded to ports assigned to other VLANs. Routers inherently break up broadcast domains but do not reduce collisions on individual access links. Hubs place all connected hosts in one shared collision and broadcast domain, and wireless access points segment neither collisions nor broadcasts in a wired network.
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What is the function of VLANs in reducing broadcast domains?
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How does a switch differ from a hub in handling collision domains?
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Why can’t routers or firewalls reduce collisions in the same way as switches?