Lossy & Lossless Compression

What is lossy compression?

• Lossy compression is a data compression method that increases file size.

• Lossy compression is a data compression method that improves file quality.

• Lossy compression is a data compression method that permanently eliminates certain information to reduce file size.

• Lossy compression is a data compression method that encrypts certain information to reduce file size.

Name a popular lossy compression algorithm.

• BMP

• JPEG

• PNG

• GIF

What is lossless compression?

• Lossless compression is a method of reducing the size of a file or data without losing any information.

• Lossless compression is a method of reducing the size of a file or data by compressing it using lossy algorithms.

• Lossless compression is a method of reducing the size of a file or data by converting it to a different format.

• Lossless compression is a method of reducing the size of a file or data by removing unnecessary information.

Which compression technique guarantees no loss of data?

• Lossy compression

• Lossless compression

• Data compression

• Uncompressed

What is the full form of JPEG?

• Joint Photographic Experts Group

• Joint Photographic Encoding Group

• Joint Photographic Experts Graphics

• Joint Photographic Experts Group

Which compression technique is commonly used for images?

• PNG

• GIF

• TIFF

• JPEG

What is run-length encoding?

• A way to increase data storage capacity

• A method for sorting data

• A form of data compression

• A type of encryption

How does run-length encoding work?

• Run-length encoding works by replacing consecutive elements of the data that are the same with a single instance of that element followed by the number of times the element is repeated.

• Run-length encoding works by rearranging the elements of the data in a random order.

• Run-length encoding works by removing consecutive elements of the data that are the same and replacing them with a single instance of that element.

• Run-length encoding works by replacing consecutive elements of the data that are different with a single instance of that element followed by the number of times the element is repeated.

Which type of data is run-length encoding most effective for?

• Sequential data

• Numerical data

• Categorical data

• Random data