Levels/L1 · Basic Concepts/Lesson 05Quiz · 05Level 1 QuizTest what you learned in this level: 8 questions, no timer. Wrong answers are corrected instantly.Duration4minLevelL1TypeQuizProgress5/ 5Question 01 / 08What is a network?AA single computerBA system of connected devicesCA type of softwareDAn internet browserNext question→PreviousLAN, WAN and InternetNextWhat is the OSI Model?