TWO-MINUTE DRILL

Explain Concepts and Components of Security Design

Firewalls are used to control or limit the traffic at the ingress/egress to your network.

Authentication systems prove the identity of users and devices.

Proxies are used as intermediaries between clients and servers or between internal clients and Internet locations.

A virtual private network (VPN) is used to secure traffic passing across an insecure network by encrypting the data.

Encryption is used to encode data so that it is not easily readable.

VLANs can be used to enhance security on VoIP networks by separating the voice traffic from the data traffic.

Intrusion detection systems detect intrusions, but do not disable services or connections.

Intrusion prevention systems can disallow connections or disable services in order to prevent an attack.