Digital Data and File Formats

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Questions and Answers

What type of files can be exported to PDF format?

  • Audio and video files
  • Documents and images
  • Graphics, spreadsheets, and web pages (correct)
  • Executable files

What formatting tool is NOT mentioned in RTF files?

  • Highlighting
  • Underlining
  • Strikethrough (correct)
  • Indentation

What is a characteristics of PDF files?

  • Can only be created using specialized software
  • Can only be viewed on specific operating systems
  • Can be viewed across multiple operating systems and hardware platforms (correct)
  • Can be edited by anyone

How can a PDF file be created?

<p>Using a save or print command from within a program (C)</p> Signup and view all the answers

What is NOT a characteristic of RTF files?

<p>Support for executable files (B)</p> Signup and view all the answers

What is a benefit of using PDF files?

<p>They can be uploaded for online reading (D)</p> Signup and view all the answers

What does MPEG stand for?

<p>Moving Picture Experts Group (C)</p> Signup and view all the answers

What kind of compression does MPEG use?

<p>Delta compression (D)</p> Signup and view all the answers

What is the purpose of transmitting whole frames in MPEG?

<p>To sustain the overall video quality (A)</p> Signup and view all the answers

What is the main purpose of the MP4 format?

<p>For digital streaming over the internet (D)</p> Signup and view all the answers

What is a characteristic of AVI files?

<p>They do not require codecs (C)</p> Signup and view all the answers

What is a drawback of AVI files?

<p>They have higher file sizes (B)</p> Signup and view all the answers

What feature of PDF files ensures that the document's fonts are maintained even when opened on a computer without the required fonts?

<p>Font embedding (C)</p> Signup and view all the answers

What is the process of converting a sound wave into a digital representation for use on a computer?

<p>Sampling (B)</p> Signup and view all the answers

What is the major factor affecting the quality of the digital version of a sound file?

<p>Sample rate (A)</p> Signup and view all the answers

What is the purpose of password protection and digital signatures in PDF files?

<p>To reduce the likelihood of breaches of copyright (A)</p> Signup and view all the answers

What is the benefit of using metadata in PDF files?

<p>To improve the speed of text searches (B)</p> Signup and view all the answers

What is a waveform in the context of sound files?

<p>A pattern that represents a sound (C)</p> Signup and view all the answers

Why might images need to be compressed before being uploaded to a website?

<p>To reduce the time it takes to upload and download (B)</p> Signup and view all the answers

What is a potential issue Maria may encounter when storing a large number of images?

<p>Running out of storage space (B)</p> Signup and view all the answers

Which of the following is a possible solution to Maria's storage issue?

<p>Uploading the images to a cloud storage service (B)</p> Signup and view all the answers

What is a disadvantage of using lossless compression on images?

<p>The compressed images may still occupy a significant amount of storage space (C)</p> Signup and view all the answers

What is a benefit of using compressed images on a website?

<p>The website may load more quickly (B)</p> Signup and view all the answers

Why might Maria prefer to use a compressed image format over an uncompressed format?

<p>To reduce the storage space required (D)</p> Signup and view all the answers

What is a characteristic of AVI files?

<p>Does not store the ratio of width-to-height for playback (D)</p> Signup and view all the answers

What is a key feature of CSV files that enables data portability?

<p>Compatibility with a wide variety of platforms (D)</p> Signup and view all the answers

What is a difference between a PICT file and a GIF file?

<p>GIF files support animation (B)</p> Signup and view all the answers

What is a key benefit of using PDF files for disseminating information globally?

<p>They can be opened on a wide variety of platforms (B)</p> Signup and view all the answers

How do MPEG files maintain a low file size?

<p>By using lossy compression (A)</p> Signup and view all the answers

Why are TXT files highly portable?

<p>Because they are compatible with a wide variety of platforms (D)</p> Signup and view all the answers

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