Section 1: Introduction 0/0 Lecture1.1 Welcome! 30 min Section 2: Networking for complete beginners 0/3 Lecture2.1 Why do we need a computer network? 20 min Lecture2.2 Overview of network devices Lecture2.3 What is a router and a firewall? Quiz2.1 Final Quiz 1 questions This content is protected, please login and enroll course to view this content! Prev What is a router and a firewall?