The Cisco Certified Network Associate (CCNA) is the most recognized entry-level networking certification. It validates your ability to install, configure, operate and troubleshoot networks — and it carries strong weight with employers hiring network administrators and engineers.
Who should take the CCNA?
- Aspiring network administrators and engineers
- Help desk and NOC technicians moving into networking
- Cybersecurity and cloud professionals who want deeper networking skills
See how to become a network engineer.
Exam overview
The CCNA is a single exam covering a broad range of networking topics and may include simulation questions. Cisco certifications are valid for three years and can be renewed through continuing education or exams.
Exam details such as price, length and question count change periodically — always confirm current information on the official certification page before you book.
Exam topics
- Network fundamentals — models, cabling, IPv4/IPv6 addressing and subnetting, wireless principles
- Network access — VLANs, trunking, EtherChannel, spanning tree and wireless architectures
- IP connectivity — routing tables, static routing and OSPF
- IP services — NAT, DHCP, DNS, NTP, SNMP, syslog and QoS basics
- Security fundamentals — ACLs, port security, VPNs and wireless security
- Automation and programmability — controller-based networking, REST APIs, JSON and configuration management tools
Master the hands-on skills
Practice the Cisco IOS command line until it feels natural:
- Configure VLANs and trunks
- Set up inter-VLAN routing
- Configure OSPF across several routers
- Apply standard and extended ACLs
- Configure NAT and DHCP
- Troubleshoot with show commands, ping and traceroute
Use Cisco Packet Tracer (free), GNS3 or a used lab.
A 10–12 week study plan
- Weeks 1–2: Networking fundamentals and subnetting
- Weeks 3–4: Switching and VLANs
- Weeks 5–6: Routing and OSPF
- Week 7: IP services
- Week 8: Security fundamentals
- Week 9: Wireless and automation
- Weeks 10–12: Labs, practice exams and weak-area review
CCNA vs. Network+
Network+ is vendor-neutral and a gentler introduction. CCNA is more in-depth and hands-on, which makes it more valuable for networking-specific roles. Many professionals earn both.
Jobs CCNA supports
- Network administrator
- Network technician or engineer
- NOC engineer
- Systems administrator with networking duties
- Network security technician
Next steps include CCNP, network security certifications or cloud networking skills with AWS Solutions Architect – Associate.
Frequently asked questions
Is CCNA hard?
It is challenging for beginners because of its breadth and hands-on configuration, but very achievable with consistent labs.
Do I need experience before taking CCNA?
There are no formal prerequisites, though basic IT and networking knowledge helps.
Is CCNA still relevant with cloud computing?
Yes. Networking fundamentals remain essential, and the CCNA now includes automation and programmability topics.
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