Unit 1, Lessons 7-8
Quiz by McCartney, Callie R
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- Q1
What is a Pixel?
Choose all that apply
Just the red color of a picture
A black and white picture
multiplem://Single unit of color in an image: Picture Element
Picture File
30s - Q2
What is Metadata?
Choose all that apply
multiplem://Data about data: Size of file: Time of day file was created: GPS Location file was created
Nick name of person that created the file
30s - Q3
What is Sampling?
Choose all that apply
sample the digital data to get specific values to store
Creating an analog (real) representation of digital data
multiplem://Creating a digital representation of analog (real) data: sample the analog (real) data to get the specific values to store
30s - Q4
What is RGB Pixel Encoding?
Where each pixel is encoded with 3 bits:
1 bit for red
1 bit for green
1 bit for blue
Where each pixel is encoded with 8 bits:
2 bit for red
2 bit for green
2 bit for blue
Where each pixel is encoded with 16 bits:
1 byte (8 bits) for black
1 byte (8 bits) for white
Where each pixel is encoded with 24 bits:
1 byte (8 bits) for red
1 byte (8 bits) for green
1 byte (8 bits) for blue
30s - Q5
Hexadecimal number system has how many digits?
16
2
6
10
30s