Get ready for the CCNA exam, one area at a time.

Find your weakest area in a free 20-minute diagnostic, fix it with a short lesson, then practice with real-looking router and switch output and every answer explained.

The only interactive course with a tutor that finds your weak spots and fixes them.

One payment in US dollars. Full refund within 14 days, for any reason.

Free subnetting drill

Subnetting runs through the whole exam. Every question here is generated and checked in code, with the working shown. IPv6, VLSM and summaries are on the full drill page.

What is the broadcast address of 10.44.219.77/29?

An IPv4 address

Work it out by hand, then check.

Learn the method

More free practice

The six exam topic areas

120 minutes, graded pass or fail. Weights are from Cisco's exam topics v1.1 for exam 200-301.

1. Network Fundamentals

Components and topologies, cabling, TCP and UDP, IPv4 subnetting, IPv6, wireless, virtualization and switching.

20% of the exam

2. Network Access

VLANs and trunks, CDP and LLDP, EtherChannel, Rapid PVST+, wireless architectures and management access.

20% of the exam

3. IP Connectivity

Reading the routing table, longest prefix match, static routes, single-area OSPFv2 and first hop redundancy.

25% of the exam

4. IP Services

NAT, NTP, DHCP and DNS, SNMP, syslog, QoS, SSH, TFTP and FTP.

10% of the exam

5. Security Fundamentals

Threats and policy, passwords and AAA, IPsec VPNs, ACLs, Layer 2 security and wireless security.

15% of the exam

6. Automation and Programmability

Controller-based networking, AI in operations, REST APIs, Ansible and Terraform, and JSON.

10% of the exam

Try one question from each area

Question 1Switching concepts
A frame arrives on switch port Gi1/0/5 with source MAC 0050.7966.6810 and destination MAC 0050.7966.6820. Which MAC address does the switch learn, and on which port?
Question 2VLANs
Gi1/0/22 on SW-ACC-5 has switchport access vlan 30 and switchport voice vlan 130. A desk phone on that port learns the voice VLAN from the switch. How does the phone send its voice frames?
Question 3Forwarding decisions
R1 routes a packet from host 10.1.10.50 to server 10.1.20.80 through next hop 10.1.12.2 on GigabitEthernet0/0/1. Which destination MAC address does R1 put in the frame it sends?
Question 4DHCP and DNS
Which source and destination IPv4 addresses does a client use in its DHCP Discover?
Question 5Password policy and MFA
A company wants laptops to prove their identity to the network without users typing a password. Which password alternative fits?
Question 6REST APIs
A controller API uses token-based authentication. Which sequence does a script follow?

In the course

  • 28 interactive lessons
  • 331 practice questions
  • 2 full 100-question, 120-minute practice exams

See the course

An IT path: Network+, networking associate, Security+

Network+ covers networking without a vendor; the CCNA exam goes further into Cisco routing and switching. Security+ builds on both. Each has its own course here.

  1. Network+

    Vendor-neutral networking: addressing, routing, switching, wireless, operations and troubleshooting.

  2. Networking associate

    Practice for the CCNA exam: Cisco IOS routing and switching, OSPF, IP services, security and automation.

    You are here

  3. Security+

    Threats, security architecture, operations and risk.

Guides

Networking Genius Pro

US$49one payment

  • 28 interactive lessons
  • 331 practice questions
  • 2 full 100-question practice exams

Full refund within 14 days. Ask within 14 days of paying, for any reason. Our refund promise still applies after you start the course. The note under the pay button is about the separate legal right to cancel. Terms

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