Earning the CompTIA Network+ certification can help to jump-start your career in IT by validating your understanding of how to configure, manage, and maintain networks. In this installment of the CompTIA Network+ Cert Prep series, instructor Mike Meyers covers key network security exam concepts as he explains how to secure TCP/IP. Mike explores symmetric and asymmetric encryption and goes over how cryptographic hashes work. He also discusses Kerberos, access control lists, single sign-on, and more.