CompTIA Network+ Cert Prep is a comprehensive training series designed to help you earn your Network+ certification—the most sought-after, vendor-neutral certification for networking professionals. This is part 1 of a 9-part series, brought to you by a partnership between LinkedIn Learning and Total Seminars, and based on Mike Meyers’s gold standard CompTIA Network+ All-in-One Exam Guide, 7th Edition. This installment provides a thorough overview of networking basics: OSI versus TCP/IP models, MAC and IP addressing, and packets and ports. Start here to prepare for the exam and your future as a certified networking professional.