A-level Compression

What is the primary purpose of compression in data management?

• To enhance file quality
• To increase download times
• To reduce file size
• To improve file security

How does lossy compression affect download times?

• It increases download times.
• It has no effect on download times.
• It can decrease download times.
• It makes downloads unreliable.

What is a primary reason for using compression in data management?

• To improve data security
• To reduce storage requirements
• To enhance file quality
• To increase processing speed

Which of the following statements accurately describes lossy compression?

• It is primarily used for text documents.
• It is suitable for all types of files.
• It reduces file size by sacrificing some quality.
• It preserves all original data without loss.

Which of the following statements is true about lossy compression?

• It is always lossless.
• It is suitable for text documents.
• It retains all original data.
• It sacrifices some quality for reduced file size.

In which scenario would lossless compression be most appropriate?

• Compressing a music file for streaming.
• Reducing the size of a video for online sharing.
• Storing a high-resolution image for editing.
• Creating a smaller version of a podcast.

Which compression method is ideal for vector-style images like logos?

• Neither method is suitable
• Both methods equally
• Lossless compression
• Lossy compression

What is a key disadvantage of using lossy compression?

• It increases file size.
• It is slower than lossless compression.
• It can lead to loss of important data.
• It is not suitable for images.

What is a common misconception about lossless compression?

• It reduces file size without losing quality.
• It is only used for audio files.
• It can be used for all file types.
• It always results in larger files.

What is an example of a file type that would typically use lossless compression?

• MP3 audio files
• JPEG images
• Text documents
• MP4 video files