Certified Internet Web (CIW) Professional Practice Exam

What does the GNU GPL Version 3 license allow software developers to do?

1. Sell the software while making its code public

2. Make the software public for free and allow alterations

3. Keep changes made to the software secret for profitability

4. Only sell the software through a charity

The correct answer is: Make the software public for free and allow alterations

The GNU General Public License (GPL) Version 3 is designed to ensure that software remains free and open while allowing users to modify it. The correct choice reflects the core principles of this license, which allow developers to make the software publicly available at no cost and also permit them to alter and customize the source code. This means that not only can users access the software without a fee, but they also have the freedom to change the code as they see fit, provided they share those changes and their source with others. The GPL Version 3 emphasizes freedom and collaboration, fostering an environment where software can evolve through community input and contributions. This encourages innovation and sharing rather than restricting usage or modifications. Other options do not align with the principles of the GNU GPL Version 3. For example, selling the software while making its code public may seem plausible; however, the GPL emphasizes user freedoms over commercial transactions. Keeping changes secret for profitability directly contradicts the core values of the GPL, which promote transparency and collaboration. Selling software only through a charity does not capture the intent of the GPL, which supports both personal and commercial use as long as derivative works remain open.