Compression Techniques

What is the main purpose of compression?

• To reduce the file size

• To encrypt the file

• To increase the file size

• To change the file format

Which type of compression is suitable for cartoons and clipart?

• Lossless compression

• None of the above

• Lossy compression

• Both types of compression

What is the main difference between lossy and lossless compression?

• Lossy compression is irreversible, lossless compression is reversible

• Lossy compression is only for images, lossless compression is for all types of data

• Lossy compression is faster, lossless compression is slower

• Lossy compression reduces file size, lossless compression does not

Which type of compression is suitable for documents and executable files?

• Both types of compression

• None of the above

• Lossless compression

• Lossy compression

What is the advantage of smaller file sizes in terms of data transfer?

• No impact on data transfer

• Unpredictable data transfer

• Slower data transfer

• Quicker data transfer

What is the main drawback of lossy compression?

• Slow processing speed

• High storage requirements

• Loss of data

• Incompatibility with devices

Which type of data is lossy compression suitable for?

• Text and executable files

• All types of data

• Images, sound, and video

• Documents and spreadsheets

What is the main advantage of lossless compression?

• Higher file size reduction

• Irreversible data loss

• Compatibility with all types of data

• Faster processing speed

Why is compression important for mobile phones?

• To increase storage space

• To improve processing speed

• To reduce download time

• To enhance display quality

Makes the file smaller by giving repeated patterns/colours a specific code

• Lossy Compression
• Lossless Compression