AP CSP - Unit 2 Review

Front

Which unit is the smallest? Megabyte, Kilobyte, Gigabyte, Terabyte

Back

Kilobyte

Front

Which unit is the largest? Megabyte, Terabyte, Gigabyte, Kilobyte

Back

Terabyte

Front

An artist makes an RGB raster image in which each pixel color is encoded with 12-bits --- 4 bits each for red, green and blue. Which of the following correctly shows the hexadecimal value for Red as a 12-bit representation? Options: F00, 00F, FF00, FF0000

Back

F00

Front

Approximately how much bigger (how many more bytes) is a megabyte than a kilobyte?

Back

1,000 times bigger

Front

Approximately 1,000 ________ are equal to 1 terabyte (1 TB).

Back

gigabytes

Front

Which of the following is a reason to use lossy compression? You want the compressed file to be larger than the original. You want the highest quality audio file possible, with no modifications. You want the highest quality image file possible, with no modifications. You want to save space and are not concerned if the file is the highest quality possible.

Back

You want to save space and are not concerned if the file is the highest quality possible.

Front

a problem solving approach (algorithm) to find a satisfactory solution where finding an optimal or exact solution is impractical or impossible

Back

Heuristic

Front

Which of the following is irreversible? lossy compression, lossless compression, abstraction, RLI

Back

lossy compression

Front

Which of the file types is an audiofile type? jpg, mp3, png, csv

Back

mp3

Front

An original file is 100 MB, it is compressed to 80 MB (including dictionary). What is its compression rate?

Back

20%