OSI: The Great Grandmother of Troubleshooting

Imagine during class one evening, a professor asks a student, “Do you know what the OSI Model is?” At the thought of it being a trick question, the student, not answering immediately, slowly shook their head, and answered “no.” As an extra credit incentive, the professor tasked the student with preparing for a pop quiz on the OSI Model. Not having a clue where to start, they immediately turned to their all-knowing encyclopedia bestie, better known as “Google,” and asked the question: “Okay Google, WHAT IS THE OSI MODEL?” For lifelong students, acquiring knowledge in new subjects is always . . .