Save Big on Coursera Plus. 7,000+ courses at $160 off. Limited Time Only! Grab it Explore the OSI model in this 36-minute video tutorial designed for IT certification exams such as CompTIA, Cisco, and Juniper. Gain a comprehensive understanding of the seven layers, from Physical to Application, and learn how to apply this knowledge for effective network troubleshooting. Discover the benefits of layered networking, understand the bus metaphor, and reinforce your learning with a detailed recap. Perfect for aspiring IT professionals preparing for certifications or those seeking to enhance their networking knowledge.