Crash Course Computer Science #21 - Compression

Quiz
•
Computers
•
9th - 12th Grade
•
Medium
Used 3+ times
FREE Resource
17 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
How do files get squeezed into a smaller size?
reduction
compression
shrinking
constrict
2.
FILL IN THE BLANK QUESTION
1 min • 1 pt
What number represents full intensity for colors in a pixel?
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
One way to compress data is to reduce repeated or redundant information. The most straightforward way is called...
run-length encoding
repeated-line encoding
reverse-logic encoding
retroactive-line encoding
4.
FILL IN THE BLANK QUESTION
1 min • 1 pt
After compression, how many bytes is our PacMan image?
5.
DRAG AND DROP QUESTION
1 min • 3 pts
A compression (a) that has this characteristic is called (b) compression, because we don't lose anything. The (c) data is identical to the original before compression, bit for bit.
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What's the most common color block in our example?
white-yellow
black-yellow
yellow-yellow
white-white
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
How does the Huffman tree organize data?
lower frequencies at the bottom
lower frequencies at the top
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