CompTIA Network+: OSI Model Layers & Data Encapsulation

Skillsoft issued completion badges are earned based on viewing the percentage required or receiving a passing score when assessment is required. The Open Systems Interconnection, or OSI, model is used to describe how computer systems communicate with each other. Frequently used for troubleshooting network problems, the seven layers of the OSI model are concepts with which all networking professionals should be familiar In this course, you’ll learn about each layer of the OSI model. You’ll outline how human-readable information, such as emails and chat messages, are transferred over a network, as well as the path this information takes along the OSI model. You’ll also examine data encapsulation and decapsulation within the context of the OSI model. You’ll outline characteristics for Ethernet headers, IP headers, and TCP/UDP headers, and learn to differentiate between synchronization (SYN) and acknowledgement (ACK) flags. Lastly, you’ll recognize the primary differences between maximum transmission unit, or MTU, and maximum segment size, or MSS, and how these concepts relate to data being transmitted over a network.