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CCNA revision

CCNA study guide — free revision notes

The complete Cisco Certified Network Associate (CCNA 200-301 v2.0) study library — 24 lessons mapped to every domain and topic in the official exam guide. Free to read, no account needed.

Lessons
24
across 5 domains
Reading time
8 hrs
465 minutes in total
Exam
120 min
question count not yet published · pass Pass / fail
Price
Free
no account required

Create a free account to track completed lessons, bookmark topics and see your exam readiness. · Pro lessons unlock with a one-time upgrade.

The CCNA blueprint, domain by domain

Cisco publishes exactly what the CCNA tests and how much each part is worth. Here it is — every domain, its weight, the topics inside it, and the lessons that cover them.

Domain 1

Network Infrastructure and Connectivity

25%
of the exam

Cabling and interfaces, virtualization, IPv4 and IPv6 addressing and subnetting, wireless principles, client connectivity and DHCPv4. Official weighting 25%.

6 topics in this domain
  • Interface and cable issues
  • Hypervisors, virtual machines and containers
  • IPv4 addressing and subnetting
  • IPv6 addressing
  • Wireless principles and client connectivity
  • DHCPv4 client, server and relay
6 lessons · 111 min of reading · 239 practice questionsStart this domain
Domain 2

Switching and Network Access

25%
of the exam

Switch-to-switch and switch-to-router links, edge ports, CDP/LLDP, Layer 2/Layer 3 troubleshooting with show commands, and Rapid PVST+. Official weighting 25%.

4 topics in this domain
  • Infrastructure connectivity: trunks, EtherChannel and SVIs
  • Edge ports: VLANs, PoE and port channels
  • CDP, LLDP and troubleshooting with show commands
  • Rapid PVST+ spanning tree
4 lessons · 86 min of reading · 240 practice questionsStart this domain
Domain 3

IP Routing

20%
of the exam

Reading the routing table, IPv4 and IPv6 static routes, single-area OSPFv2 and OSPFv3, and first hop redundancy. Official weighting 20%.

4 topics in this domain
  • Interpreting the routing table
  • IPv4 and IPv6 static routing
  • Single-area OSPFv2 and OSPFv3
  • First hop redundancy: HSRP and VRRP
4 lessons · 79 min of reading · 190 practice questionsStart this domain
Domain 4

Network Services and Security

20%
of the exam

Device management access with AAA, secure file transfer, NAT/PAT, DNS records, IPsec VPNs, IPv4 ACLs and Layer 2 security features. Official weighting 20%.

6 topics in this domain
  • Management access: AAA and secure file transfer
  • NAT and PAT
  • DNS records
  • IPsec VPNs
  • IPv4 access control lists
  • Layer 2 security features
6 lessons · 113 min of reading · 192 practice questionsStart this domain
Domain 5

AI, and Network Operations and Management

10%
of the exam

Agentic and generative AI in network operations, network management approaches, SNMP, Ansible and syslog. Official weighting 10%.

4 topics in this domain
  • Agentic AI and prompting for network operations
  • Network management approaches
  • SNMP and syslog
  • Configuration management with Ansible
4 lessons · 76 min of reading · 96 practice questionsStart this domain

How to revise for the CCNA

Reading every note front to back is the slowest way to pass. The exam is weighted, so your revision should be too — the blueprint above tells you exactly where the marks are.

Read in weight order, not page order

Network Infrastructure and Connectivity carries the most marks on the CCNA, so it earns the most of your attention. Work down the blueprint from the heaviest domain to the lightest rather than starting at domain 1 and grinding forward.

First pass for coverage, second pass for recall

Read each lesson once without stopping to memorise — you are building a map, not a memory. On the second pass, read only the "what's tested" and key-takeaway blocks. If a takeaway surprises you, that lesson goes back on the pile.

Turn takeaways into questions

Cover a lesson's key takeaways and try to say them out loud from the heading alone. Recall you can produce under your own steam is the only recall that survives a timed exam; recognition on a re-read is not the same thing.

Stop reading when practice, not the page count, says so

Finishing the notes is not the goal — scoring is. Move to CCNA practice questions early, then come back to the exact lessons your wrong answers point at. That loop is worth far more than a third read-through.

Beyond the CCNA notes

CCNA cheat sheetEvery key takeaway from these notes on one page, grouped by domain. For the week of the exam.CCNA flashcardsThe same key facts one at a time, answer hidden until you commit — recall practice rather than re-reading.CCNA practice questions957 exam-realistic questions with an explanation on every option. Reading is not the same as knowing.CCNA mock examsTimed 100-question papers on the real exam's 120-minute clock. Sit one before you book.Cisco Certified Network Associate (CCNA 200-301 v2.0) (CCNA) exam overviewExam facts, who it is for, cost and how it fits alongside the other certifications.

CCNA revision notes: your questions

Yes. All 24 CCNA lessons are readable in full without an account and without payment. Creating a free account adds progress tracking, bookmarks and a readiness score — it does not unlock extra reading.

Source

Exam structure, domain weights and scoring on this page come from the official CCNA exam guide.