Cost-Effective Solution for Network Device Installation and Configuration in a Building with 20 Classrooms

A Switch with VLANs: Cost-Effective Solution for Separate Subnets in 20 Classrooms

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Question

A technician must install and configure a network device in a building with 20 classrooms.

Each room must be on a separate subnet and should not be able to see traffic from other subnets.

Which of the following is the MOST cost-effective solution?

A.

A switch with VLANs created for each segment B.

A router with interfaces connected to a switch in each room C.

A VoIP endpoint connected to a hub for each network D.

A firewall with DHCP pools for each subnet.

A.

Explanations

A technician must install and configure a network device in a building with 20 classrooms.

Each room must be on a separate subnet and should not be able to see traffic from other subnets.

Which of the following is the MOST cost-effective solution?

A.

A switch with VLANs created for each segment

B.

A router with interfaces connected to a switch in each room

C.

A VoIP endpoint connected to a hub for each network

D.

A firewall with DHCP pools for each subnet.

A.

The most cost-effective solution for the given scenario is option A: A switch with VLANs created for each segment.

Explanation: VLANs (Virtual Local Area Networks) are used to segment a network into multiple broadcast domains. By creating a separate VLAN for each classroom, we can ensure that devices on one VLAN cannot see traffic from devices on other VLANs.

A switch with VLAN support is a cost-effective solution because it can be used to create multiple VLANs without requiring additional physical hardware. VLANs can be created and configured on a single switch, and each port can be assigned to a particular VLAN.

Option B, which involves using a router with interfaces connected to a switch in each room, is not a cost-effective solution. It requires multiple routers and switches, which can increase the cost significantly.

Option C, which involves using a VoIP endpoint connected to a hub for each network, is not a feasible solution for creating separate subnets. Hubs are not capable of segmenting traffic and creating separate broadcast domains.

Option D, which involves using a firewall with DHCP pools for each subnet, is also not a cost-effective solution. While a firewall can be used to block traffic between subnets, it is typically more expensive than a switch with VLAN support. Additionally, using DHCP pools for each subnet would require a separate DHCP server or a firewall with DHCP capabilities, which can also increase the cost.

Therefore, the most cost-effective solution for creating separate subnets in each classroom is to use a switch with VLANs created for each segment.