Benefits of Implementing VLANs

A company has hundreds of nodes on a single subnet and has decided to implement VLANs.

Which of the following BEST describes the benefit of this approach?

A.

It segments broadcast domains in the network infrastructure

B.

It provides a faster port to all servers

C.

It provides multiple collision domains on one switchport

D.

It provides multiple broadcast domains within a single collision domain.

A.

The BEST benefit of implementing VLANs in a network infrastructure with hundreds of nodes on a single subnet is that it segments broadcast domains, which is option A.

A broadcast domain is a logical division of a network in which all devices receive the same broadcast messages. In a network with a single subnet, all devices are in the same broadcast domain, which can lead to a high amount of unnecessary broadcast traffic.

When VLANs are implemented, the network can be segmented into multiple broadcast domains based on logical grouping of devices, such as by department or function. Each VLAN has its own broadcast domain, which means that broadcast traffic is limited to devices within the same VLAN.

By reducing the amount of broadcast traffic on the network, VLANs can improve network performance and reduce congestion. In addition, VLANs can provide improved security by separating sensitive or critical devices from other devices on the network.

Option B is incorrect because VLANs do not provide a faster port to servers, as port speed is determined by the physical hardware and network configuration.

Option C is incorrect because VLANs do not provide multiple collision domains on one switchport. Collision domains are determined by the physical topology of the network, such as whether devices are connected to a hub or a switch.

Option D is incorrect because it is the opposite of the correct answer. VLANs provide multiple broadcast domains within a single collision domain, not multiple broadcast domains within a single collision domain.