Timed exam simulations in the official format, adaptive practice, flashcards and a mistake book for cloud, security, Linux and IT certifications. Free to use, no email needed, and it keeps working offline.
Exams from Amazon Web Services, Linux Professional Institute, CompTIA, Microsoft, HashiCorp, ISC2 and PeopleCert (ITIL). Browse the certifications →
An exam simulation converts your share of correct scored answers to the exam's own scale (for example 100–1000 for AWS) with a straight line. Real exams equate scores across exam forms, so every score here is labelled estimate: aim comfortably above the pass mark.
Readiness stays at “Not enough data yet” until you have answered at least 20 questions, 3 in every domain, and seen a quarter of the concepts. After that it is shown as a range with a confidence word (low, medium, high). Practice is pulled toward the pass mark until there is enough evidence; timed exam simulations count double and fade by half every 21 days.
Every question is original and written against the official exam guide. Each build checks every bank automatically — answer keys, option counts, explanations, duplicates and a ratchet that keeps the right answer from being the giveaway longest option — and questions students report or answer oddly are reviewed. The quality approach →
Everything — answers, progress, settings — stays in this browser (local storage). Nothing is sent to us. Clearing the site's data removes it.
We store your display name (no email, no password), your exam results, your learning progress and your signed-in devices and passkeys, so progress syncs across devices and your teacher can see it. It stays until you reset or delete it under Your data (export, reset and delete are self-service).
Usage logs keep a hashed network address and the country, never the raw IP address, and are pruned after 180 days. Expired sign-ins are cleared out, signed-out ones after 30 days, class duel results after 180 days. Feedback keeps what you wrote (an email address only if you typed one) until 365 days after it is resolved. Database backups rotate out after at most 26 weeks, so deleted data can remain in a backup until then.
Independent. This simulator is not affiliated with, endorsed by or sponsored by Amazon Web Services, Linux Professional Institute, CompTIA, Microsoft, HashiCorp, Google Cloud, CNCF / Linux Foundation, ISC2 and PeopleCert (ITIL) or any other certification body. All trademarks belong to their owners; exam names are used only to identify the exams. The questions are original practice material, not real exam content.
AWS and the AWS exam names are trademarks of Amazon.com, Inc. or its affiliates. LPI, Linux Essentials and LPIC are trademarks of the Linux Professional Institute. Linux is a registered trademark of Linus Torvalds. CompTIA, A+, Network+, Security+, CySA+ and Linux+ are trademarks of CompTIA, Inc. Microsoft, Azure, Microsoft Entra, Microsoft Defender, Microsoft Sentinel, Microsoft Purview and Microsoft Foundry are trademarks of the Microsoft group of companies. HashiCorp, Terraform and HCP are trademarks of HashiCorp, an IBM company. Google Cloud, Gemini and Vertex AI are trademarks of Google LLC. Kubernetes, KCNA and CNCF are trademarks of The Linux Foundation. ISC2, CC and Certified in Cybersecurity are trademarks of ISC2, Inc. ITIL and PRINCE2 are registered trademarks of PeopleCert. Practice questions are original and not endorsed by PeopleCert.
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