Self-Paced Training Kit (Exam 70-642): Configuring Windows Server® 2008 Network Infrastructure

Lesson 2: Configuring Network Access Protection

Consider this common scenario: an enterprise has thousands of computers on a private network. Perimeter firewalls protect the network from Internet threats, including network attacks from worms. Suddenly, someone creates a worm that can exploit a vulnerability in computers running Windows that do not have the latest security updates installed. The worm spreads quickly across the Internet, but the private network’s perimeter firewalls protect the vulnerable computers on the internal network. A traveling salesperson then returns to the office with his mobile computer. While on his trip, he connected his computer to the wireless network at the hotel, where another guest’s computer transmitted a worm ...