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CCNA · v2.0 changes

CCNA v2.0: what moves, what is new and what you can stop studying

By Mustafa K. Al-Dori · Edition 2026.2, verified 9 October 2026 · 6 min read

The short answer

CCNA v2.0 goes from six domains to five and lists 29 topics. Infrastructure and switching rise to 25 per cent each, routing falls to 20 and the old services and security domains merge into one at 20. New or newly named: troubleshooting across the list, OSPFv3, HSRP and VRRP, agentic AI and prompts for generative AI. NTP, QoS, REST APIs, JSON and wireless controller GUI configuration no longer appear as listed topics.

A refresh is still a rewrite of your weekly plan. Four things change what you do on Tuesday evening: where the weight sits, how much troubleshooting you practise, two protocols that are now named, and two AI topics that did not exist before.

How do the domains compare?

Cisco publishes weights for both versions. The rows below pair each v2.0 domain with the v1.1 domains it mostly replaces.

v2.0 domain v2.0 weight Mostly replaces (v1.1) v1.1 weight
Network Infrastructure and Connectivity 25% Network Fundamentals 20%
Switching and Network Access 25% Network Access 20%
IP Routing 20% IP Connectivity 25%
Network Services and Security 20% IP Services and Security Fundamentals 10% and 15%
AI, and Network Operations and Management 10% Automation and Programmability 10%
Number of domains 5 6

Infrastructure and switching together now carry half the exam. IP routing loses five points, but it is still a fifth of your score, and OSPF is still the topic most candidates meet in a simulation.

What is genuinely new?

Four changes matter most.

Troubleshooting is everywhere. Topics now begin with verbs such as diagnose and troubleshoot: cable and interface issues, IPv4 and IPv6 addressing, client connectivity, DHCPv4 on IOS devices, and Layer 2 and Layer 3 connectivity. Topic 2.4, troubleshooting Layer 2 and Layer 3 connectivity with show commands, ping, traceroute and packet capture, is the clearest sign. It has no v1.1 match.

OSPFv3 joins OSPFv2. Topic 3.3 names single-area OSPFv2 and OSPFv3, so IPv6 routing is now examined directly.

First hop redundancy is named. Topic 3.4 asks you to read HSRP and VRRP status: which router is active and why. The closest v1.1 topic is 3.5, and v2.0 is the first version to name the two protocols.

Two AI topics arrive. Topic 5.1 covers agentic AI in network operations, meaning what AI agents can do in a network team and how to judge their output. Topic 5.2 covers choosing prompts for generative AI that return useful, safe answers about network tasks. Cisco notes that candidates may need to judge output from AI tools.

What no longer appears as a listed topic?

Several v1.1 topics are not listed in v2.0: NTP, QoS, REST APIs, JSON and wireless controller GUI configuration. That does not mean they vanish from every question, because a listed topic can still touch them. It does mean you should stop giving them a full week each.

A cautious rule: if a v1.1 topic is not listed in the v2.0 exam topics, learn what it is in a sentence, then spend your hours elsewhere.

Which topics map where?

All 29 v2.0 topics have a closest v1.1 match, except two that are new. Here is the part that moves most.

v2.0 topic Closest v1.1 What changes for you
1.1 Diagnose cable and interface issues 1.3, 1.4 Read interface output for faults, not only configure
1.4 Troubleshoot IPv6 addressing and prefixes 1.8, 1.9 Includes modified EUI-64
1.7 Troubleshoot DHCPv4 on IOS devices 4.3, 4.6 Client, server and relay faults
2.4 Troubleshoot Layer 2 and Layer 3 connectivity New Show commands, ping, traceroute, packet capture
3.3 Single-area OSPFv2 and OSPFv3 3.4 Adds OSPFv3
3.4 HSRP and VRRP status 3.5 Named explicitly
4.1 Local users and AAA for management 2.8, 5.3, 5.8 Local accounts, TACACS+ and RADIUS
4.4 Diagnose DNS records 4.3 A, AAAA, CNAME, MX, NS and PTR records
4.7 Layer 2 security 5.7 DHCP snooping, DAI, storm control, RA guard, port security
5.2 Prompts for generative AI New Write a good prompt, spot a bad answer

The full table, with all 29 topics, is in Chapter 5 of the book.

How should you re-plan?

Start from your hours, then move them.

  1. Re-split by the v2.0 weights. For a 150-hour plan the starting split is 38 hours each for infrastructure and switching, 30 for routing, 30 for services and security and 14 for AI and operations.
  2. Add a troubleshooting lab to every week. Build one small network early, break it on purpose and fix it from the show commands. That single habit covers topics 1.1, 1.3, 1.6, 1.7 and 2.4 at once.
  3. Treat AI as a small, learnable block. Fourteen hours covers management approaches, syslog and the AI topics. Do not skip it, because it is ten per cent of the exam.

Replace any practice test that is not built on the v2.0 topics. The version rule tells you whether v2.0 is your exam at all, and the study hours guide shows the four-stage plan in detail.

Rate yourself from 1 to 5 on every v2.0 topic before you pay for anything. Chapter 5 of CredenTrek For Cisco CCNA has the full table to do it, and your five lowest scores become the first targets in your plan.

Your next step
  1. Download the v2.0 exam topics from Cisco and check the version number and the first test date.
  2. Rate yourself from 1 to 5 on all 29 topics.
  3. Re-split your total hours by the v2.0 weights and move extra hours to your five lowest topics.
  4. Build one small lab network this week and plan to break and fix it every week.

Questions readers ask

Is v2.0 a completely new exam?
No. Cisco describes it as a refresh. The fundamentals stay, troubleshooting grows, and security and AI run through the whole exam. Most v2.0 topics have a close v1.1 match.
Do I need to learn AI engineering for v2.0?
No. The two AI topics ask what AI agents can do in a network team, how to judge their output and how to write a prompt that gets a useful, safe answer. They do not ask you to build models.
Are NTP and QoS gone for good?
They are not listed as topics in v2.0. A listed topic can still touch them, so learn what they do in a sentence, but do not give them the hours you would have under v1.1.
Where can I check the official list?
Cisco publishes the exam topics documents for both versions. Check the version number, the domain weights and the first or last test date before you buy study material.
Sources

This guide is independent and is not endorsed by Cisco. Facts change: confirm them on the official page before you act.