This concept, which can be found in the section “Information and data: Managing data”during the test Pixis essential to understanding how digital content works in everyday life. Find out the answers in this article.
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What are the file size units? [Discover the answer]
In this Pix exerciseseveral types of files are presented to you: video, audio, and text. You are then asked to indicate the’unit the most appropriate to represent the size of each of them.
States : “Specify the unit for the size of these files”
Attention Answers may vary depending on the exercise.
Find below the elements that justify these answers.
1. Specify the unit for the size of an MPEG-4 video file.
The size of a typical MPEG-4 video file is usually expressed in MB (megabytes) or in GB (gigabytes)according to its weight.
In this exercise, we first have a file:
- Type: MPEG-4 video
- Size: 2.1? (no unit specified)
- Duration: 2:59:47 (2 hours, 59 minutes and 47 seconds)
A video lasting nearly 3 hours generates a large file. Its size cannot therefore be as small as 2.1. MB (Megabytes).
For MPEG-4 video files, the answer is: 2.1 Go (Gigabytes).
2. Specify the unit for the size of an MP3 audio file.
The size of a audio fileis usually expressed as a song or short podcast episode. MB (Megabytes).
Still with the same question, we observe a second file :
- Type: MP3 audio
- Size: 2.2? (no unit specified)
- Duration: 00:02:30 (2 minutes and 30 seconds)
This format and this duration typically correspond to a song. A size of 2.2 MB (Megabytes) is consistent with this type of compressed audio file.
For the MP3 audio file, the answer is: 2.2 MB (Megabytes).
3. Specify the unit for the size of a plain text document.
A plain text documentwhich does not contain an image or page layout, usually has a size indicated in KB (kilobytes).
On the same question on Pix, we have one last file:
- Type: plain text document
- Size: 4.2? (no unit specified)
- Length: 4168 characters
With its 4,168 charactersThis plain text file is very small. This type of document is generally smaller than 20 Kb (Kilobytes).
For the plain text document, the answer is: 4.2 Ko.
What is Pix?
Pix is a free online platform designed to assess and develop digital skills students, professionals, and citizens. Users progress by answering questions of increasing difficulty. They can practice freely or take a official certification in a professional or educational context.
In summary, to correctly answer the question “Indicate the unit for the size of these files” on Pix, you must observe the type of content and his features length, content, format. Videos, often heavy because of their length and quality, are generally measured in GB. Audio files, which are lighter, are most often expressed in MB. Finally, plain text documents have a reduced size and are usually measured in KB.
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