問82
頻出度★☆☆
OSS (Open Source Software) に関する記述 a～c のうち, 適切なものだけを全て挙げたものはどれか。 a ソースコードに手を加えて再配布することができる。 b ソースコードの入手は無償だが, 有償の保守サポートを受けなければならない。 c 著作権が放棄されており, 無断で利用することができる。
令和5年度 ITパスポート試験 問82
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 82
- ア
正解 The definition of OSS (Open Source Software) centers on the source code being made public and freely modifiable and redistributable. Statement a, “you can modify the source code and redistribute it”, is exactly this essential feature, so it is appropriate. Statements b and c are both wrong, so only a is appropriate. Therefore ア, which points to “a”, is the correct answer.
Incorrectイ
This picks “a, c”, but c is wrong. OSS is not public domain with the copyright abandoned; rather, the copyright holder publishes it under a defined license (terms of use), and you must follow the license conditions. “Can be used without permission” is inappropriate, so this option, which lists a together with c, is wrong.
Incorrectウ
This picks only “b”, but b is wrong. Many OSS products can be obtained free of charge, but being free is not a requirement of OSS; moreover, paid maintenance support is an optional service, not something you are obliged to receive. “Must receive” is inappropriate, so this option, which treats b as correct, is wrong.
Incorrectエ
This picks only “c”, but c is wrong. OSS does not have its copyright abandoned; usage conditions are defined based on a license. It cannot be used without permission, so this option, which treats c as appropriate, is wrong.
ここがポイント
- The three pillars of OSS: the source code is public, free to modify, and free to redistribute. These are guaranteed under a license (terms of use).
- OSS is neither “abandonment of copyright (public domain)” nor “mandatory paid support”. Distinguish that the copyright is retained and that a support contract is optional.
用語