COMPTIA A+ Practice Exam

Disable ads (and more) with a membership for a one time $2.99 payment

Prepare for the COMPTIA A+ Exam with confidence! Sharpen your skills through comprehensive quizzes and detailed explanations. Equip yourself with the knowledge needed to succeed in your certification journey.

Each practice test/flash card set has 50 randomly selected questions from a bank of over 500. You'll get a new set of questions each time!

Practice this question and more.

What is the original format of audio CDs known as?

MP3
WAV
CDDA
AAC

The correct answer is: CDDA

Audio CDs were originally known as Compact Disc Digital Audio (CDDA). MP3, WAV, and AAC are all digital audio formats that can be stored on CDs, but they are not the original format of audio CDs. MP3 and AAC use compression to reduce file size, while WAV files are uncompressed. However, CD audio is stored in a format called PCM (pulse-code modulation) which is a type of uncompressed digital audio. Therefore, the original format of audio CDs is CDDA.