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Designing a Wide Area Network Infrastructure

This objective focuses on RRAS. You need an extensive understanding of RRAS to pass this exam. You'll be grilled on everything from simple dial-up connections to connection protocols.

You'll need an understanding of how to integrate RRAS with Remote Authentication Dial-in User Server (RADIUS), and why it may be a desirable solution for a large organization.

With any connection through the RRAS Server, authentication protocols are required. You'll need to know about MS-CHAPv2 for Windows 2000 clients. And the data through this connection, how will it be secured? This means IP Security (IPSec)—know what it is and how to enable it.

Virtual Private Networks (VPNs) are included on this exam. You'll need to know when a VPN is a better choice than dial-up access. Know the two tunneling protocols: Point-to-Point Tunneling Protocol (PPTP) and Layer Two Tunneling Protocol (L2TP). Spend time creating VPNs, and know how to secure the data and the authentication.

Finally, this objective will require knowledge of demand-dial routing. You can expect to see an organization with multiple sites, and a dial-on-demand connection will be required. Know how to configure the connections.


Study Hint: RRAS. Know it, know it, know it.

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