Here are the answers to your questions:
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Which type of licensing agreement does Windows fall under?
- Answer: proprietary
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Many portable document format (PDF) reader applications are available for download for free use. What type of licensing agreement do they most likely use?
- Answer: freeware
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Students are using a game engine to develop their games in a class at school. Typically, you would need to pay for a license to use the game engine in your games, but because it is for educational purposes and not for distribution, the license is free. What type of licensing agreement is this?
- Answer: noncommercial
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A student has located source code on a code repository that they would like to modify for use in their project. They would then like to place their code on a repository for others to use and modify. Which type of licensing would this be an example of?
- Answer: copyleft
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A student has found some source code on the internet and the associated README states that the copyright has been waived. Under what type of license would this be classified?
- Answer: public domain
If you have any more questions or need further clarification, feel free to ask!