Learn why setting up a guest network with VLAN separation is the best way to provide secure, isolated wireless access for employees and guests, as required for the CompTIA A+ Core 1 220-1101 exam. Discover how VLANs keep business and guest traffic separate and protect sensitive resources.
Table of Contents
Question
A company wants to provide wireless network access for employees and guests but keep them separate. What is the best way to achieve this?
A. Use a single SSID for both employees and guests
B. Manually assign static IP addresses
C. Disable DHCP for guests
D. Set up a guest network with VLAN separation
E. Use MAC address filtering
Answer
D. Set up a guest network with VLAN separation
Explanation
VLANs keep traffic separate, ensuring security between employee and guest networks.
The most effective and secure method for providing wireless access to both employees and guests—while keeping their traffic separate—is to configure a dedicated guest network using VLAN (Virtual Local Area Network) separation. VLANs allow network administrators to logically segment network traffic, ensuring that guest devices cannot access internal business resources or communicate with employee devices.
Key benefits of VLAN separation for guest networks:
- Security: VLANs enforce isolation at the network level, preventing guests from accessing sensitive company data or internal systems.
- Network Management: Each VLAN can have its own SSID, IP range, and security policies, making it easy to manage and monitor guest and employee traffic separately.
- Scalability: VLANs are supported by most business-class routers, switches, and access points, allowing for flexible expansion and policy enforcement.
- Best Practice: Industry recommendations and technical forums consistently endorse VLAN separation as the standard approach for guest network deployment.
Implementation steps:
- Create a separate VLAN for the guest network on your router or switch.
- Assign a unique SSID to the guest VLAN.
- Apply firewall rules to block guest-to-employee network communication.
- Enable DHCP for the guest VLAN to provide automatic IP addressing.
- Optionally, enable client isolation to prevent guests from communicating with each other.
This configuration ensures that employees and guests have wireless access while maintaining strict separation and security between networks.
CompTIA A+ Core 1 220-1101 certification exam practice question and answer (Q&A) dump with detail explanation and reference available free, helpful to pass the CompTIA A+ Core 1 220-1101 exam and earn CompTIA A+ Core 1 220-1101 certification.