問80
頻出度★☆☆
OSS (Open Source Software) に関する記述として, 適切なものだけを全て挙げたものはどれか。 a OSS を利用して作成したソフトウェアを販売することができる。 b ソースコードが公開されたソフトウェアは全て OSS である。 c 著作権が放棄されているソフトウェアである。
令和6年度 ITパスポート試験 問80
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 80
- ア
正解 The correct answer is “ア” (a only). An OSS license does not restrict commercial use, so software created using OSS may be sold, which makes statement a appropriate. Therefore the only appropriate statement is a, and the answer is “ア”.
Incorrectイ
Wrong because it includes b. Statement b (“All software whose source code is published is OSS”) is incorrect: even if the source code is published, software cannot be called OSS unless it meets license conditions such as freedom to redistribute and modify (publishing source code is not the same as OSS). Statement a itself is correct, but mixing in b makes this option inappropriate.
Incorrectウ
Both b and c are wrong. Statement b is incorrect in equating publishing source code with OSS, and statement c is also incorrect as explained below, so this option contains no appropriate statement at all.
Incorrectエ
Wrong because it picks only c. Statement c (“It is software for which copyright has been abandoned”) is incorrect: OSS retains its copyright and grants use through a license; it does not abandon copyright (it is not placed in the public domain).
ここがポイント
- OSS does not abandon copyright; it retains copyright and uses a license to grant free use, modification, and redistribution. Commercial use (selling) is also permitted.
- Merely publishing source code does not necessarily make software OSS. The license must satisfy the conditions defined by the OSI, such as freedom to redistribute and modify.
用語