Designing and Supporting Computer Networks, CCNA Discovery Learning Guide is the official supplemental textbook for the Designing and Supporting Computer Networks course in the Cisco® Networking Academy® CCNA® Discovery curriculum version 4. In this course, the last of four in the new curriculum, you progress through a variety of case studies and role-playing exercises, which include gathering requirements, designing basic networks, establishing proof-of-concept, and performing project management tasks. In addition, within the context of a pre-sales support position, you learn lifecycle services, including upgrades, competitive analyses, and system integration.