Code.org Unit 2

a tiny square or dot which contains a single point of color of a larger image.

• pixel
• encode
• decode
• data

What does ASCII assign to each letter, number and symbol?

• a unique decimal code
• a unique octal code
• a unique binary code
• a unique hexadecimal code

What is the primary reason for characters being an agreed--upon length according to the slides?

• To increase bandwidth
• To ensure proper signal interpretation
• To save memory
• To reduce noise

What does ASCII stand for?

• American Standard Code for Internet Interchange
• American System Code for Internet Interchange
• American System Code for Information Interchange
• American Standard Code for Information Interchange

What is the purpose of encoding in digital communication?

• To make messages longer
• To convert data into a specific format for transmission or storage
• To delete unnecessary information
• To slow down communication

What happens when you watch a movie online?

• The video is encoded to increase its size
• The video is decoded to reduce its size
• The video is encoded to reduce its size for faster streaming
• The video is neither encoded nor decoded

INFORMATION that has been collected about the world.

• pixel
• encode
• decode
• data

a way of representing information using only TWO options

• Bit
• ASCII (ask-ee)
• Binary System
• Iteratively

How many bits are in a byte?

• 8
• 1
• 256
• 0

Network speeds are often measured in (bps) which means

• bits per second
• bit pro speed
• bit pass setting
• bit potential score