VPN

Question 1

What is a VPN?

Answer 1

-Communication technique which allows secure communication over an insecure network

Question 2

How does a VPN work?

Answer 2

By encrypting traffic while it travels across an insecure network

Question 3

How does a VPN encrypt data?

Answer 3

• Typically the clients have a pre-shared key

- The key is used to generate session keys which are used to encrypt data for transmission

Question 4

How can VPN encrypt data with lots of users on the network?

Answer 4

Using public and private keys to exchange a session key

Question 5

What parts in the VPN transmissions are encrypted?

Answer 5

Only from the client to the VPN server

Question 6

What are some VPN protocols that can be used to ensure secure communication?

Answer 6

• IPsec
• SSL/TLS
• PPTP
• L2TP

Question 7

What is sometimes installed to manage the workload between the internal network and clients?

Answer 7

A VPN concentrator

Question 8

How is an IP address assigned in a VPN

Answer 8

Normally DHCP is used to assign a IP address from within the private network