VLAN and VPN

Question 1

What is a VLAN?

Answer 1

Virtual Local Area Network. A logical subnetwork that groups a collection of devices from different physical LANs. VLANs improve network security and performance by isolating and grouping different types of traffic.

Question 2

What is a VPN?

Answer 2

Virtual Private Network. VPNs form an encrypted tunnel so that information can travel securely across a public network.

Question 3

What is a VPN concentrator?

Answer 3

an encryption/decryption access device which is often integrated into a firewall. Its a type of router device that can handle multiple VPN tunnels.

Question 4

What are the deployment options for VPN?

Answer 4

specialized cryptographic hardware or a software based option.

Question 5

What is the rough outline of how VPNs work?

Answer 5

1. Via your laptop you turn the VPN on.
2. data travels down the encrypted tunnel to the VPN concentrator
3. the concentrator receives the data, it decrypts the data and sends the info to the corporate network.