📝 Introduction to Switching in Physical Layer

Q1. In a switched network, what is the name of the device that can create temporary connections between two or more linked devices?

💡 Difficulty: easy | ✅ Correct: A

Q2. Consider a network where each end device is connected to exactly one switch, and each switch is linked to every other switch (a full mesh among switches). If one switch becomes overloaded, what is the most likely effect on overall network latency?

💡 Difficulty: medium | ✅ Correct: B

Q3. A network consists of 5 switches, each connecting to 4 distinct end devices (no device is shared). Using only direct connections (no intermediate switches), what is the total number of possible one‑to‑one communication pairs among the end devices?

💡 Difficulty: hard | ✅ Correct: C