ITPEC IP October 2020 Question 21
ITPEC IP October 2020 — Question 21 of 100
Firefox, Linux, and Thunderbird are all open-source software. Firefox is a web browser, Linux is an open-source operating-system kernel used by many distributions, and Thunderbird is an email client whose source code is publicly available under open-source licenses.
Answer (c)
Why not others:
- Internet Explorer is proprietary software
- Microsoft Windows is proprietary software
- therefore every other combination includes at least one non-OSS product
Key rule: A list qualifies only when every named product is distributed under an open-source license; one proprietary item invalidates the combination.
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