You are a SharePoint administrator for Litware, Inc. The company has a main office and a branch office. The company has 14,000 employees. You plan to deploy a SharePoint Server 2010 server farm…

You are a SharePoint administrator for Litware, Inc. The company has a main office and a branch office. The company has 14,000 employees. You plan to deploy a SharePoint Server 2010 server farm. Employees of the company's business partners will require access to the SharePoint farm. You need to design an authentication solution to provide users with access to the SharePoint sites from the Internet. What should you include in the solution?