The Network+ certification verifies that the candidate knows about the OSI model, network components, and basic networking hardware peripherals and protocols. The Server+ certification credential validates advanced-level technical competency of server issues and technology, including installation, configuration, upgrading, maintenance, troubleshooting and disaster recovery. It also provides a practice exam that includes questions in a format similar to the certification exam. Complete certification requirements for Network+ are located at the CompTIA Web site at http://www.comptia.org/certifications.