CCNA 200-301 v1.1 — Domain 1.0 — 20% of exam
Domain 01: Network Fundamentals
Device roles, topologies, OSI model, cabling, subnetting basics, wireless principles.
13
Total Lessons
13
Live Now
20% of exam
Exam Weight
Domain Progress
13 of 13 live
Lessons in This Domain
Click any live lesson to start reading. New lessons added weekly.
Live
Coming Soon
1
✅ Live
Network Components: Routers, Switches, Security Appliances, and More
2
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Network Topology Architectures: Two-Tier, Three-Tier, Spine-Leaf, and Beyond
3
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Physical Interface and Cabling Types: Fiber, Copper, and Ethernet Fundamentals
4
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Identifying Interface and Cable Issues: Collisions, Errors, and Mismatches
5
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TCP vs UDP: The Reliability-Speed Trade-Off Every Application Makes
6
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Configuring and Verifying IPv4 Addressing and Subnetting
7
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Private IPv4 Addressing: Why RFC 1918 Exists and How It Actually Works
8
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Configuring and Verifying IPv6 Addressing and Prefix
9
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Comparing IPv6 Address Types: Unicast, Anycast, and Multicast
10
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Verifying IP Parameters for a Client OS: Windows, Linux, and macOS
11
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Wireless Principles: Channels, SSIDs, RF Fundamentals, and Encryption
12
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Virtualization Fundamentals: Virtual Machines vs Containers
13
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Describe Switching Concepts
Module 1 Summary & Common Pitfalls
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Subnetting speed and accuracy is the highest-leverage skill in this entire module — it resurfaces constantly in later domains.
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Don't confuse ULA (IPv6 private addressing) with link-local — they serve different purposes and use different address ranges.
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Remember IPv6 has no broadcast; multicast fully replaces that function.
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Duplex mismatch causes degraded performance on a link that's still technically up; speed mismatch usually prevents the link from coming up at all — these are different failure signatures, frequently confused.
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Know the practical difference between a VM and a container conceptually, even without needing deep virtualization administration skills for this exam.
Ready to test yourself?
Practice 13 domain-specific questions with timer, scoring, and explanations.