WorksheetsAP CSP Unit 2
Total questions: 18
Worksheet time: 18mins
Which unit is the largest?
Megabyte
Terabyte
Gigabyte
Kilobyte
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.
F00
00F
FF00
FF0000
Approximately how much bigger (how many more bytes) is a megabyte than a kilobyte?
1,000 times bigger
100,000 times bigger
1,000,000 times bigger
1,000,000,000 times bigger
Approximately 1,000 ________ are equal to 1 terabyte (1 TB).
jengabytes
gigglebytes
gigabytes
megabytes
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.
a problem solving approach (algorithm) to find a satisfactory solution where finding an optimal or exact solution is impractical or impossible
Lossless Compression
Heuristic
Lossy Compression
encryption
Which of the following is irreversible?
lossy compression
lossless compression
abstraction
RLI
Which of the file types is an audiofile type?
jpg
mp3
png
csv
An original file is 100 MB, it is compressed to 80 MB (including dictionary). What is its compression rate?
90%
80%
20%
100%
Which of the following hexadecimal representations would represent dark green?
#191399
#00FF10
#001313
#001300
How would you lighten the color #bcc8e1?
+50 to each color component
+50 to the red component
-50 to each color component
-50 to the red component
How many bits are needed to represent 8 colors?
8 bits
24 bits
1 hex digit
3 bits
How many bits are needed to represent a 3 x 3 black and white image (exclude metadata)
3 bits
6 bits
9 bits
9 x 24 bits
The color widget uses 3 bytes of metadata. The first two bytes indicate the width and height of the image. The next byte indicates the number of bits that will be used to represent color. How many bits is used to represent color given the metadata (in binary) 00001000 00001000 0001001
3 bits
6 bits
9 bits
12 bits
Which of the following statements is FALSE?
The computer stores colors in hexadecimal
Every color has 3 components. A red, green and a blue component.
A bright color would be represented by a large number.
A computer uses 3 bytes to store a single colored pixel.
Lil’ Nibble, a local Soundcloud rapper, has recorded a new mixtape called “Half-a-byte,” produced by “Mibikibi and the Teraflops.” The mixtape has several audio files that have been compressed into a .ZIP file so they can be transferred easily and a separate .ZIP file containing album artwork and liner notes. If the mixtape .ZIP file takes up 800 MB and the artwork .ZIP file is 300 MB, what size flash drive do you need in order to transfer the files?
512 MB
1.0 GB
4 KB
2.0 GB
Consider the following three binary numbers:
01010
010000
1110
Which of the following lists the numbers in order from least to greatest?
010000
1110
01010
01010
1110
010000
01010
010000
1110
1110
01010
010000
