From the developer: "The Boson Routing Protocols practice tests will prepare you for the actual Routing Protocols exam. This includes Open Shortest Path First OSPF and Border Gateway Protocol BGP exams. Each practice exam contains over 200 questions and explanations and has a money-back guarantee.

"Each test in this download allows unlimited use of a 12-question database. Registration gives you use of 200+ questions, answers, explanations, and use of flash-card mode."

Note: Registration costs $39.95.