These notes provide a good high-level roadmap of foundational CCNA topics. It is also noticed that one note should be updated for today's CCNA exam objectives.
Transcription of My Notes
More Test Preparation Topics
- Introduction to networking and the networking models
- Ethernet and CSMA/CD
- Switching
- Switch and Router commands
- IP Addressing and the routing process
- Basic Network Protocols
- Memory, configuration files, and more basic commands
- Wireless LANs
- Binary and subnetting
- Static Routing and RIP
- Wide Area Networks (WANs)
- Troubleshooting
- Basic Network Security
See:
Cisco CCNA Routing and Switching 200-301 Official Certification Guide and Simulator Library for the full list and content for the CCNA exam.
Second Note
Note:
70% of the new CCNA exam will be subnetting questions, i.e. VLSM
Lots more OSPF
And lots less RIP
A Few Important Updates
These notes appear to be from the CCNA Routing and Switching 200-120 era, which has since been retired.
The current CCNA (200-301) has changed considerably.
Still extremely important
- Networking fundamentals
- OSI and TCP/IP models
- Ethernet
- Switching
- VLANs
- IP addressing
- IPv4 and IPv6 subnetting
- Static routing
- OSPF
- Wireless networking
- Security fundamentals
- Network automation basics
- Troubleshooting
- Cisco IOS commands
Less important today
- RIP (know what it is, but don't expect much emphasis)
- CSMA/CD (mainly historical because modern switched Ethernet is full-duplex)
Newer topics
Today's CCNA also includes:
- IPv6
- VLAN Trunking (802.1Q)
- Inter-VLAN Routing
- STP (Spanning Tree Protocol)
- EtherChannel
- DHCP
- NAT/PAT
- ACLs
- DNS
- NTP
- SSH
- QoS fundamentals
- Virtualization
- Cloud fundamentals
- SDN
- REST APIs
- JSON basics
- Configuration management concepts
About the "70% subnetting" statement
I would not take that literally today.
However, subnetting is one of the highest-leverage skills in CCNA because it appears throughout many topics:
- IP addressing
- Routing
- OSPF
- VLANs
- ACLs
- NAT
- Troubleshooting
If you become very comfortable with:
- Binary
- CIDR
- VLSM
- Route summarization
you'll find many CCNA questions much easier.
Suggested Study Order
For The Growth Network blog and exam preparation, this is a recommended study sequence:
- Networking Fundamentals
- OSI & TCP/IP Models
- Ethernet Fundamentals
- Cisco IOS Commands
- Switching
- VLANs & Trunking
- IPv4 Addressing
- Binary & Subnetting
- VLSM
- IPv6
- Static Routing
- OSPF
- DHCP
- NAT/PAT
- ACLs
- Wireless Networking
- Security Fundamentals
- WAN Technologies
- Automation & Programmability
- Troubleshooting Everything
This progression builds each concept on the previous one and aligns well with both the CCNA exam and practical networking skills.
For The Growth Network, this list will eventually become a 20-part CCNA study series, where each article explains one topic in beginner-friendly language, includes my study notes, Packet Tracer labs, common exam tips, and personal reflections on what I've learned. This approach lets readers follow my journey while creating a comprehensive CCNA resource over time.
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