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This new All-in-One Exam Guide covers every topic on the current version of Cisco's CCT and CCNA examsTake the 2020 versions of the Cisco Certified Technician (CCT) and Cisco Certified Network Associate (CCNA) exams with complete confidence using the detailed information contained in this highly effective self-study system. Written by a pair of Cisco networking professionals and training experts, CCT /CCNA Routing and Switching All-in-One Exam Guide (Exams 100-490 & 200-301) fully explains all subjects covered on both exams and contains practice questions that mirror those on the live test in tone, format, and content. Beyond fully preparing you for the challenging exam, the book also serves as a valuable on-the-job reference.Covers all topics on both exams, including: Network fundamentals OSI modelTCP/IP protocol suiteSubnetting and VLSMCisco device and IOS basicsCisco device managementSwitchingStatic and dynamic routingIP services and IPv6WirelessSecurity fundamentalsImplementing security on Cisco devicesAutomation and programmability