問84
頻出度★☆☆
DVD-R や SD カードなどに採用され, ディジタルコンテンツを記録メディアに一度だけ複製することを許容する著作権保護技術はどれか。
平成30年度 春期 ITパスポート試験 問84
テクノロジ系情報メディア › マルチメディア技術
This question's explanation and your answers so far.
解説
問 84
Incorrectア
AR stands for Augmented Reality, a technology that overlays digital information onto real-world scenery. It has nothing to do with copyright protection, so it is wrong.
- イ
正解 The correct answer is イ, CPRM. CPRM stands for Content Protection for Recordable Media, a copyright protection technology adopted in recording media such as DVD-R, DVD-RW, and SD cards. It controls how video such as digital broadcasts is written to recording media under rules like copy-once (copying allowed only one time), thereby preventing unlimited copying. The wording in the question, a copyright protection technology that permits digital content to be copied to recording media only once, matches the role of CPRM, so イ is correct.
Incorrectウ
HDMI stands for High-Definition Multimedia Interface, a connection interface standard for transmitting video and audio digitally. It handles transmission between devices and is not a copyright protection technology that controls the number of copies made to recording media, so it is wrong.
Incorrectエ
MIDI stands for Musical Instrument Digital Interface, a standard for exchanging performance information between electronic instruments and computers. It is used to describe and transmit music data and is not a copyright protection technology, so it is wrong.
ここがポイント
- CPRM is a copyright protection technology for recording media such as DVD-R, DVD-RW, and SD cards; it controls copy-once (copying allowed only one time) to prevent unlimited copying.
- Distinguishing confusable abbreviations: none of AR (augmented reality), HDMI (a video and audio transmission interface), or MIDI (a performance-data standard for electronic instruments) is a copyright protection technology.
用語