A company has several conference rooms with wired network jacks that are used by both
employees and guests. Employees need access to internal resources and guests only need
access to the Internet. Which of the following combinations is BEST to meet the requirements?
A.
NAT and DMZ
B.
VPN and IPSec
C.
Switches and a firewall
D.
802.1x and VLANs
So what we are after in here is some form of Network “segretation”.
ELIMINATION:
* A and B do nothing to segregate networks
* C is a bit of an overkill. Added to that, I can have multiple Vland in a switch, or just one.
So it just leaved D- 802.1x and VLANs as the only possible answer
802.1x
* 802.1x is a port-based authentication mechanism. It’s based on Extensible Authentication Protocol (EAP) and is commonly used in closed-environment wireless networks.
* 802.1x was initially used to compensate for the weaknesses of Wired Equivalent Privacy (WEP), but today it’s often used as a component in more complex authentication and connection-management systems, including Remote Authentication Dial-In User Service (RADIUS), Diameter, Cisco System’s Terminal Access Controller Access-Control System Plus (TACACS+), and Network Access Control (NAC).
VLANS
* A virtual local area network (VLAN) is a hardware-imposed network segmentation created by switches. By default, all ports on a switch are part of VLAN 1. But as the switch administrator changes the VLAN assignment on a port-by-port basis, various ports can be grouped together and be distinct from other VLAN port designations. VLANs are used for traffic management.
* Communications between ports within the same VLAN occur without hindrance, but communications between VLANs require a routing function.
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