NetMastery is a CCNA and CCNP practice app with original networking questions and answers, clear explanations and handy subnetting tools. Study for your Cisco CCNA or CCNP exam, test your networking knowledge with quizzes and mock exams, or keep your skills sharp on the job. No ads, ever.

CCNA AND CCNP PRACTICE QUESTIONS
• Hundreds of CCNA and CCNP practice questions across 12 networking topics: ACLs & NAT, Automation & AI, BGP, EIGRP, EtherChannel & FHRP, IP Services & QoS, IPv6 & Routing, OSPF, Security & VPNs, Subnetting, VLANs & STP, and Wireless & SD-WAN
• Real-world scenario questions at CCNA and CCNP level, to practise troubleshooting
• A clear explanation for every answer, so you learn why, not just what

NETWORKING QUIZZES AND PRACTICE EXAMS
• Daily Challenge and Random Test: a quick mixed networking quiz from every topic
• Practice Exam and Custom Exam: timed, exam-style mock tests with a score for every topic
• Review Mistakes: practise only the questions you got wrong
• Bookmarks and Progress: save questions and see your weak spots

SUBNETTING AND NETWORK TOOLS
• Subnet Calculator: network, broadcast, host range, masks, wildcard and binary, tap any value to copy it
• Subnetting Practice: unlimited randomly generated subnetting questions
• VLSM Planner: plan subnets by host count
• IPv6 Toolkit: compress addresses, EUI-64 and prefixes
• Wildcard & ACL Builder: wildcards, ranges and ACL lines
• Quick Reference: AD values, ports, multicast addresses, timers and more

WHO IT IS FOR
CCNA and CCNP candidates, network engineers, IT students, help desk and systems staff moving into networking, and anyone learning how networks work. Light and dark mode, and your progress is saved on your phone.

FREE AND PRO
Try a free sample of questions in every topic, plus unlimited subnetting practice and the subnet calculator, for free. Unlock Pro once to get every question, longer tests and the full toolset. One payment, no subscription.

Independent study aid. NetMastery is not affiliated with, endorsed by, or sponsored by Cisco Systems, Inc. Cisco, CCNA and CCNP are trademarks of Cisco Systems, Inc. All questions are original and are not real exam questions.