問96
頻出度★☆☆
OSS (Open Source Software) に関する次の記述のうち, 適切なものだけを全て挙げたものはどれか。 a 個人だけではなく, 企業や団体が開発したソフトウェアもある。 b 著作権が放棄されている。 c 入手したソフトウェアは, 自由に再配布してもよい。
令和7年度 ITパスポート試験 問96
テクノロジ系ソフトウェア › オープンソースソフトウェア
This question's explanation and your answers so far.
解説
問 96
Incorrectア
The combination “a, b”. Statement a is correct, but b (“the copyright has been abandoned”) is incorrect. OSS is a scheme in which the author retains the copyright and grants conditions for use, modification, and redistribution through an OSS license; it does not abandon the copyright (placing it in the public domain). This choice omits the correct c and includes the incorrect b, so it is inappropriate.
Incorrectイ
The combination “a, b, c”. Statements a and c are correct, but it includes the incorrect b. OSS does not abandon the copyright (the copyright is retained, and the license defines the conditions of use), so this choice that includes b is inappropriate.
- ウ
正解 The correct answer is choice ウ, the combination “a, c”. Statement a is correct: OSS is developed not only by individuals but also by many companies and organizations that develop and release it (such as Linux, Android, various databases and frameworks), so the developers are not limited to individuals. Statement c is also correct: that anyone who obtains the software may freely redistribute it is one of the core requirements of the “Open Source Definition” set by the OSI, and a fundamental property of OSS. Statement b, on the other hand, is incorrect and must not be included. Listing only the appropriate statements gives a and c, so ウ is correct.
Incorrectエ
The combination “b, c”. Statement c is correct, but it includes the incorrect b and omits the correct a. Statement b, which claims the copyright is abandoned, is incorrect, so this combination is inappropriate.
ここがポイント
- OSS does not abandon copyright; it is software the author releases while retaining copyright and attaching an OSS license (conditions for use, modification, and redistribution).
- In the OSI's “Open Source Definition”, requirements include that free redistribution is permitted and that the source code is available, and the developers are not limited to individuals but also include companies and organizations.
用語