The CompTIA Network+ certification — adaptive concept practice across the networking stack and the network-security essentials built on top of it.
CompTIA Network+ certifies core networking knowledge: the OSI and TCP/IP layers, TCP vs UDP and the handshake, IP addressing and subnets (CIDR), NAT and routing, DNS resolution, the TLS handshake, and the HTTP/1.1 vs HTTP/2 vs HTTP/3 internals — plus the network-security essentials: access control, authentication, and the TLS/PKI trust chain.
Keentune builds that conceptual foundation with questions that meet you at your level and get harder as you improve — a focused complement to the official objectives and hands-on labs. Use the sections below to firm up the concepts behind the exam.
Studying for a test date?
Tell us when your CompTIA Network+ is — you’ll get a countdown and a daily pace. Create a free account and your date and progress follow you to any device.
Set your test date and we’ll pace your practice to it.
Practice by section
Networking
The OSI/TCP-IP layers, TCP/UDP, IP and subnets, NAT and routing, DNS, TLS, and the HTTP versions.
Concept practice aligned to the CompTIA Network+ domains — not a brain dump and not official exam questions. Keentune is independent study practice, not affiliated with CompTIA.
Yes. You can start practicing immediately — no signup, no payment. Create a free account only when you want to save your level, streak, and progress across devices.
What does the CompTIA Network+ practice cover?
It’s organized around the CompTIA Network+’s sections — Networking and Network security — with adaptive questions for the skills behind each one. You practice the underlying abilities the CompTIA Network+ rewards rather than memorizing a fixed question set.
How does the adaptive difficulty work?
Every question is chosen near your current level in that skill. Answer well and it gets harder; miss and it eases back — so practice stays at the “optimal challenge” point where you improve fastest, and your level tracks your real progress.
Is this the official CompTIA Network+, or a practice test?
Neither. Keentune is independent skill practice ALIGNED to the CompTIA Network+’s skill areas — not official material and not a replica of the exact test format. Keentune is independent study practice, not affiliated with CompTIA.
All exam, test, and product names and trademarks are the property of their respective owners and are used here for identification and reference only. Keentune is independent study practice — not affiliated with, authorized, or endorsed by any of these organizations.