BitWithBite
CCNA Networking Worksheet
🌐 Physical Layer
SCORE___ / 20
NameClassDate
After this worksheet you can
Copper, fiber, wireless mediaBandwidth vs throughputCable types and usesSignal encoding📚 Quick Recap
🎯 What you'll learn: The purpose of the Physical layer, encoding and signaling methods, bandwidth terminology, copper cabling types (UTP, STP, coaxial), fiber-optic cabling, wireless media types, and how to choose the right cable for each scenario.
🧠 Section A · Concept Check ● BEGINNER 4 × 1 = 4
1Layer 1 moves:
2Immune to electrical interference:
3Common LAN copper cable:
4Actual measured transfer rate is:
🧮 Section B · Problem Solving ● INTERMEDIATE 2 + 3×3 = 11
5Bandwidth is the capacity of a link.
6Fiber carries data as pulses of .
7When choose fiber over copper?
8Bandwidth vs throughput vs goodput?
9Straight-through vs crossover cable use?
🚀 Section C · Challenge ● CHALLENGE 5
10Three wireless standards examples?
💭 Reflection — the most useful thing I learned:
A ___/4 B ___/11 C ___/5 Total ___/20
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✂ answer key — fold or cut before handing out
1-A 2-A 3-A 4-A | 5 theoretical/maximum 6 light 7 = Long distances, high bandwidth, electrical interference environments 8 = Capacity vs actual rate vs usable data rate 9 = Unlike devices vs like devices (legacy - auto-MDIX now) | 10 = Wi-Fi 802.11, Bluetooth, cellular