MCSA/MCSE Self-Paced Training Kit (Exam 70-270): Installing ...

Objective 6.2 Connect to Computers by Using Dial-Up Networking
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Objective 6.2
Connect to Computers by Using
Dial-Up Networking
There are two primary ways to gain remote access to your internal network: dial-up
networking and a VPN. With dial-up networking, you connect your Windows XP computer
to a telephone line and use the telephone line to connect to a remote access
server at your office. With a VPN, you connect your Windows XP computer to the
Internet and use the Internet to connect to a VPN server at your office.
ICS provides a convenient way for small business and home users to connect multiple
systems to the Internet using a single connection. ICS combines three software services:
DHCP, Network Address Translation (NAT), and DNS proxy. DHCP is used to
assign private IP addresses to other computers on the local area network (LAN). NAT
translates the private IP addresses used by the internal computers into the public IP
address assigned by the ISP. DNS proxy enables systems residing on the LAN to resolve
domain names to public IP addresses.
To successfully answer questions in this objective, you must know how to create dialup
and VPN connections. Additionally, you should understand how to configure and
use ICS.