Securing N/w Communication (OBJ 3.2)

Question 1

Site to Site VPN

Answer 1

Secures traffic, but may slow down users due to the extra data transfer

Question 2

Client to Site VPN

Answer 2

Connects devices directly to the headquarters, enabling remote users to access the network.

Question 3

Clientless VPN

Answer 3

Secures remote access through browser-based VPN tunnels without needing client software or hardware configuration.

This is used everyday when you connect to an ecommerce site.

Question 4

IPSEC Internet Protocol Security

Answer 4

A protocol suite for secure communication through authentication and data encryption in IP network.

Question 5

IPSEC - 5 steps of setting up a VPN using IPSEC

Answer 5

1. Request to start Internet Key Exchange (IKE)
2. IKE Phase 1 - authenticate parties and establish a channel for negotiation.
3. IKE Phase 2 - negotiate security association parameters and fully establish the secure tunnel
4. Data transfer between the two parties to occur over the secure tunnel using the keys established in IKE Phase 2.
5. Tunnel termination - security association is terminated due to mutual agreement or one party became non responsive