70-291 Implementing, Managing, and Maintaining a Microsoft Windows Server 2003 Network Infrastructure Study Guide

Demo Question 11.

You work as the network administrator at EliteCertify.com. The EliteCertify.com network consists of a single Active Directory domain named EliteCertify.com. All servers on the EliteCertify.com network run Windows Server 2003 and all client computers run Windows XP Professional. EliteCertify.com has its headquarters in Chicago and a branch office in Dallas. Headquarters has a server named EliteCertify -SR24 and the Dallas branch office has a server named EliteCertify -SR25. You have received instruction from the CIO to create an Internet connection between headquarters and the Dallas branch office that meets the following requirements: 1. Provides the highest possible level of encryption for traffic between the two offices. 2. Provides mutual authentication between the two servers. 3. Requires no additional hardware or software. Which of the following connection or connections should be configured? (Choose all that apply)

A. An L2TP VPN connection.
B. A PPTP VPN connection.
C. A PPP over Ethernet (PPPoE. connection.
D. An IPSec tunnel


Display Answer

Answer: A, D

Explanation: A virtual private network (VPN) is a private network of computers that is at least partially connected using public channels or lines, such as the Internet. The two protocols used for accessing a VPN server are the Point-to-Point Tunneling Protocol (PPTP) and the Layer 2 Tunneling Protocol (L2TP). VPNs use encryption and secure protocols such as PPTP and L2TP to ensure that unauthorized parties do not intercept data transmissions. L2TP uses IPSec for data encryption thus you would also make use of an IPSec tunnel. This should ensure that you get the highest possible level of encryption for traffic between the two offices, mutual authentication without necessitating additional hardware or software. Incorrect answers: B. PPTP is used over a PPP connection on an IP based network to create a secure tunnel. C. This is an IP based network and making use of PPP over Point-to-Point Protocol over Ethernet (PPPoE. will not work. Thus this option is not the answer. Reference: Diana Huggins, Windows Server 2003 Network Infrastructure Exam Cram 2 (Exam ), Chapter 5