// Block 1

Block 1

Networking fundamentals — the OSI model, ports & protocols, network monitoring, and a number base converter.

// Cyber Fundamentals · Unit 4
OSI Model
Study Guide
Learn all 7 layers with plain-English explanations, real-world analogies, memory tricks, and a 20-question quiz to test yourself.
7 layers Mnemonics 20 questions
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// Cyber Fundamentals · Units 5 & 11
Ports, Protocols
& Monitoring
Master TCP vs UDP, common protocols (HTTP, FTP, DNS, DHCP, SNMP), port number ranges, and how Network Monitoring Systems keep watch over a network.
TCP & UDP Port numbers NMS & IDS 20 questions
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// Cyber Fundamentals · Unit 11
Network
Monitoring
How admins keep watch over the network — the 5 NMS functions (Discover, Map, Monitor, Alert, Report), plus IDS, SNMP, MIB and OID explained.
NMS functions IDS & SNMP 10 questions
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// Math tools
Number Base
Converter
Convert between decimal, binary, and hex in all four directions — with a full step-by-step breakdown showing exactly how each answer was reached.
Dec → Bin Dec → Hex Bin → Dec Bin → Hex
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// Every unit, all 3 blocks
Comprehensive
Study Guide
Every unit from Block 1 — including safety/ESD, publications, IP addressing, wireless & media, and troubleshooting & tools, none of which have their own page above — each with its own quiz.
9 units Per-unit quizzes Glossary
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