Question

Part II:

Compare the differences between a VLAN and your VPN, explain how the VPN you set up can protect your data, and describe the recommendations for use of either of the technologies discussed in part II. Support your recommendations with references if possible.

Answer 1

the difference between the VLAN AND VPN

• vlan can group workstation that are not within the same place or area in the same beoadcast domain where as vpn can provide remote access to a comanpany network.
• vlan is subcategory of vpn and by using vpn we can create secure network for secure data transmission.
• a vlan is a logically segregate networks without physically segregating them multiple switches.a vpn is used to connect two nodes in a secure tunnel.

A VPN is basically a corporate network that is built around the communication infrastructure of the Internet rather than using leased lines or a Remote Access Server using direct dial-in. Since the Internet is a public medium where the traffic
is prone to interception or modification, unlike the privacy offered by dedicated leased circuits, security issues play an important role in the implementation of a VPN. A VPN is however a highly cost effective proposition, as dedicated lines are required only to connect the corporate network to an ISP.

recommandation

Cost of remote access and the number of employees who travel and need to connect using long distance dial up are showing an increasing trend
• A dial-up Internet connection offers good bandwidth and is therefore becoming acceptable to more users, particularly those using applications based on client server technology and multi-tier architectures that conserve bandwidth
• A local dialup connection using a reliable Internet Service Provider (ISP) offers a very high degree of availability and Quality Of Service (QOS) level compared to direct dial up through long distance lines.