This document provides instructions and configuration examples for practicing CCNA exam simulations. It includes 15 practice exam simulations focused on configuring and troubleshooting routing protocols, VLANs, ACLs, and other networking topics. For each simulation, the document describes the network topology and objectives that must be met to complete the simulation successfully. It stresses the importance of fully understanding configuration topics in the author's CCNA study guide before attempting the practice exams.