VPN

Question 1

Virtual Private Network (VPN)

Answer 1

Creates a secure virtual tunnel over an untrusted network

Question 2

Remote Authentication Dial-In User Service (RADIUS)

Answer 2

• Manage remote and wireless authentication infrastructures.
• Known vulnerabilities, requires additional encryption

Question 3

Terminal Access Controller Access Control System Plus (TACACS+)

Answer 3

• Developed by Cisco that is often
• Authenticate to administrator accounts for network appliance management
• More flexible and reliable alternative to RADIUS
• Known vulnerabilities, requires additional encryption

Question 3

Dynamic Multipoint Virtual Private Network (DMVPN)

Answer 3

• Internet used as WAN connection *Secure site-to-site communication

Question 4

Full Tunnel VPN

Answer 4

Routes and encrypts all network request through the VPN connection back to the HQ

Question 5

Split Tunnel VPN

Answer 5

Routes and encrypts only the traffic bound for the HQ over the VPN, and sends the rest of the traffic to the regular internet

Question 6

Clientless VPN

Answer 6

Secure remote-access VPN tunnel using a web browser without software client

Question 7

Layer 2 Tunneling Protocol (LSTP)

Answer 7

*Lacks security features like encryption by default
*Combine with an extra encryption layer for protection (VPN)

Question 8

Layer 2 Forwarding (L2F)

Answer 8

*Cisco
*Tunneling protocol for P2P protocol
*Lacks native security and encryption features (VPN)

Question 9

Point-to-Point Tunneling Protocol (PPTP)

Answer 9

*Diall-up networks
*Lacks security except when used in Windows

Question 10

IP Security (IPSec)

Answer 10

Provides authentication and encryption of packets
*Creates a secure encrypted communication path between two computers
(VPN)