What are the essentials of setting up an IFD? | MS Dynamics CRM Interview Questions

Following are the essentials required to set up an IFD:
=>    Windows Active Directory
=>    SQL Server (2005 or 2008)
=>    SQL Server Reporting Services
=>      .Net Framework 2.0 as well as 3.0
=>    Microsoft Exchange Server
=>    Secure Socket Layer (SSL) certificate
=>    Domain Name System (DNS) server configurations
=>      Extensible Markup Language (XML) setup configuration file.