Software licensing basics in Intro to Computing - Practice Problems & Coding Challenges

Challenge - 5 Problems

🧠 Conceptual

intermediate

Understanding Software License Types

Which of the following best describes the difference between proprietary software licenses and open-source software licenses?

A Open-source licenses prevent commercial use of software, while proprietary licenses allow unlimited commercial use.

B Both proprietary and open-source licenses require users to pay a fee before using the software.

C Proprietary licenses allow users to freely modify and share software, while open-source licenses restrict usage to only the original developer.

D Proprietary licenses restrict access to source code and limit usage rights, while open-source licenses allow users to view, modify, and share the source code.

💡 Hint

Think about whether users can see and change the software code.

Proprietary licenses keep the source code hidden and limit how the software can be used or shared. Open-source licenses make the source code available and allow users to modify and share it.

❓ Comparison

intermediate

Comparing License Permissions

Which software license type typically requires users to share any changes they make to the software when distributing it?

A Proprietary License

B GNU General Public License (GPL)

C MIT License

D Public Domain

💡 Hint

Consider which license enforces sharing improvements back to the community.

The GPL license requires that any distributed modified versions of the software must also be licensed under the GPL, ensuring changes are shared.

❓ trace

advanced

Tracing License Compliance Scenario

Imagine a company uses open-source software licensed under the MIT License in their product. They modify the software and sell their product. What must the company do to comply with the MIT License?

A They must include the original MIT License text and copyright notice in their product documentation or distribution.

B They cannot sell the product because the MIT License forbids commercial use.

C They must pay a licensing fee to the original software author.

D They must release their entire product's source code publicly under the MIT License.

💡 Hint

Think about what the MIT License requires when redistributing software.

The MIT License allows commercial use and modification but requires that the original license and copyright notice be included.

❓ identification

advanced

Identifying License Violations

A developer downloads software under the Apache License 2.0 and incorporates it into their proprietary software without including the Apache License or providing attribution. What is the likely outcome?

A Violation of the Apache License terms, which may lead to legal consequences or requirement to comply with license terms.

B No issue, because proprietary software can use any open-source code without restrictions.

C The developer must open-source their entire proprietary software under Apache License 2.0.

D The developer must pay royalties to the original software author.

💡 Hint

Consider what the Apache License requires when using its code.

The Apache License requires including the license and giving proper attribution. Failing to do so violates the license.

🧠 Conceptual

expert

Understanding Copyleft vs Permissive Licenses

Which statement correctly explains the key difference between copyleft licenses and permissive licenses?

A Permissive licenses forbid commercial use, while copyleft licenses allow it freely.

B Permissive licenses require source code disclosure for all uses, copyleft licenses do not.

C Copyleft licenses require derived works to use the same license, ensuring freedom is preserved, while permissive licenses allow derived works to have any license, including proprietary.

D Copyleft licenses allow proprietary use without restrictions, while permissive licenses require all derived works to be open-source.

💡 Hint

Think about how each license type affects the licensing of modified versions.

Copyleft licenses like GPL require that any modified versions also use the same license, preserving user freedoms. Permissive licenses like MIT allow modified versions to be relicensed, including as proprietary.