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Code.org Unit 2

Total questions: 10

Worksheet time: 5mins

Name
Class
Date
1.
a tiny square or dot which contains a single point of color of a larger image.
a)
pixel
b)
encode
c)
decode
d)
data
2.
What does ASCII assign to each letter, number and symbol?
a)
a unique decimal code
b)
a unique octal code
c)
a unique binary code
d)
a unique hexadecimal code
3.
What is the primary reason for characters being an agreed--upon length according to the slides?
a)
To increase bandwidth
b)
To ensure proper signal interpretation
c)
To save memory
d)
To reduce noise
4.
What does ASCII stand for?
a)
American Standard Code for Internet Interchange
b)
American System Code for Internet Interchange
c)
American System Code for Information Interchange
d)
American Standard Code for Information Interchange
5.
What is the purpose of encoding in digital communication?
a)
To make messages longer
b)
To convert data into a specific format for transmission or storage
c)
To delete unnecessary information
d)
To slow down communication
6.
What happens when you watch a movie online?
a)
The video is encoded to increase its size
b)
The video is decoded to reduce its size
c)
The video is encoded to reduce its size for faster streaming
d)
The video is neither encoded nor decoded
7.
INFORMATION that has been collected about the world.
a)
pixel
b)
encode
c)
decode
d)
data
8.
a way of representing information using only TWO options
a)
Bit
b)
ASCII (ask-ee)
c)
Binary System
d)
Iteratively
9.
How many bits are in a byte?
a)
8
b)
1
c)
256
d)
0
10.
Network speeds are often measured in (bps) which means
a)
bits per second
b)
bit pro speed
c)
bit pass setting
d)
bit potential score