Information Security - Network Security applications and countermeasures

Given the network security applications and countermeasures in the first column of the table below, explore answers to the following questions:

· Where does the countermeasure belong in the seven domains of a typical IT infrastructure?

· What CIA functions does the countermeasure provide?

Provide your answers in the table below.

As a reminder, the seven domains of a typical IT infrastructure include the following domains:

1. User Domain: Actual users

1. Workstation Domain: Workstations, laptops, and end-point devices, such as smartphones and printers

1. LAN Domain: Physical and logical LAN technologies—100 Mbps/1000 Mbps switched Ethernet, 802.11-family of wireless LAN technologies—used to support workstation connectivity to the organization’s network infrastructure

1. LAN-to-WAN Domain: Routers, firewalls, demilitarized zones (DMZs), and IDS/IPS

1. WAN Domain: Routers, circuits, switches, firewalls, gateways, and equivalent gear at remote locations, sometimes under a managed service offering by the service provider

1. Remote access Domain: Virtual private networks (VPNs), laptops with VPN software, and secured socket layer/VPN (SSL/VPN) tunnels

1. System/Application Domain: Hardware, operating system software, database software, client/server applications, and data that are typically housed in the organization’s data center and computer rooms

Representation of the Seven Domains of a Typical IT Infrastructure