Curriculum topic
Fundamentals
PartialWhat a network is, what the devices in it do, and how the OSI and TCP/IP layer models describe the journey a packet takes.
- lesson
- 3 lessons
- quiz
- 1 quiz
- question
- 6 questions
- lab
- 0 labs
Two of the three: taught, assessed, or practised.
Why this matters
Every later topic is a refinement of this one. Learners who skip it tend to memorise commands without a model to hang them on.
Learn
Modules covering this topic
3 lessons on this topic, sequenced inside these modules alongside their quizzes and labs.
Practice
Hands-on labs
No dedicated Fundamentals lab is currently available. It is taught and assessed, but you will not configure it here.
Assess
Graded quizzes
6 graded questions across 1 quiz, taken inside the modules above. Wrong answers explain the specific misconception behind the option you chose.
Review
Spaced repetition
Fundamentals is tracked on the review ladder. Once you have answered a question on it, it comes back on a schedule that stretches as you keep getting it right - and resets if you don't. See your review queue.
Certification
Exam objectives this topic covers
- 1.5 Compare TCP to UDP
- 1.1 Explain concepts related to the OSI reference model
- 1.4 Explain common networking ports, protocols, services, and traffic types