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Turn your notes into an online real-time quiz

Upload a PDF, slides or notes and DeckOwl writes multiple-choice, true/false and short-answer questions, each with an explanation. Take them in your browser, then export to QTI or Moodle XML on Pro.

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Drop files here or browsePDF, DOCX, PPTX, text or photos of your notes · several files with Plus

Free account · 3 sets a month · Creates quizzes in seconds

How to get a quiz ready before class

If you need an online real-time quiz maker that runs a live game with a whole class at once, DeckOwl is not that tool. It builds quizzes from your own material that you take alone in the browser, with an explanation after every question.

Works from PDFs, DOCX, PPTX, plain text and photos of pages
Multiple-choice, true/false and short-answer questions
Explanations attached to each answer
Browser study on the Free plan, with exports on paid plans

Example real-time systems quiz questions

What separates a hard real-time system from a soft real-time system?A hard real-time system must meet every deadline because a miss causes failure, while a soft one tolerates occasional misses with reduced value.

In rate monotonic scheduling, which task gets the higher fixed priority?The task with the shorter period gets the higher priority, because it has the tightest deadline and this rule is optimal for fixed-priority preemptive scheduling on one processor.

What is priority inversion?A high-priority task waits on a resource held by a lower-priority task, which can be delayed by medium-priority tasks. Priority inheritance is one fix.

Why does a real-time system need worst-case execution time rather than average execution time?Schedulability checks need a guaranteed upper bound on how long each task can run, and an average can hide the long cases that cause missed deadlines.

What is jitter in a real-time system?Jitter is variation in the time between an event and the system's response. Low, predictable jitter matters for control loops that must act at a steady rate.

Generate the full set

Questions from your material

Upload PDFs, DOCX, PPTX, plain text or photos of pages and get a quiz built from that content.

Explanations on every answer

Each multiple-choice, true/false and short-answer question includes an explanation of the correct answer.

Exports for your LMS

Pro exports to QTI 2.1 and Moodle XML so your quiz can run inside your learning system.

How it works

Upload your material

Add a PDF, DOCX, PPTX, notes or a photo of a page.

Choose a question type

Pick multiple choice, true/false or short answer.

Take the quiz

Work through it in your browser and read the explanation after each answer.

Most of the time goes into the material, not the formatting. Upload lecture slides or chapter notes, pick the question types you want, and review the output before you share it with anyone.

Teachers who want a class to sit the quiz together can export to QTI 2.1 or Moodle XML on the Pro plan and import it into their own learning system, which handles scheduling.

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Frequently asked questions

How many questions should a real-time systems quiz include?

Start with 10 to 15 questions per topic so each concept, such as deadlines or priority inversion, gets at least one check. Add more questions where your notes spend the most time.

How should I study hard and soft real-time systems?

Learn the deadline rules first, then practice scheduling examples such as rate monotonic priority assignment. Explain each answer in your own words before you move on.

Can DeckOwl run a live real-time quiz for a class?

No. DeckOwl quizzes are taken individually in the browser. Teachers on Pro can export QTI 2.1 or Moodle XML and run the quiz in their own learning system.

Is there a free plan?

Yes. The Free plan includes 3 generations per month and studying in the browser, but exports need a paid plan. Plus is $99.90/year or $9.99/month, and students get 40% off with a school email.

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Keep exploring the topic

Review the main ideas visually or practice recalling them.