Unit: Digital Information

Based on the information in this table, how would the hexadecimal number 4689 be written in binary code?

• 100011000100111

• 10001110111001

• 10001111000101

• 111011110100110

What would make the motion in a video look smoother?

• Converting it into binary code

• Shooting it at a higher frame rate

• Shooting it at a lower resolution

• Recording it at a lower sample rate

Values of which three colors are combined to produce digital images on a screen?

• Red, yellow, and blue

• Red, green, and blue

• Black, gray, and white

• Cyan, magenta, and yellow

Which unit of data is the largest?

• Gigabyte

• Petabyte

• Megabyte

• Terabyte

An octal number system uses which set of symbols to represent data?

• 0, 1, 2, 3, 4, 5, 6, 7, 8, 9

• 0, 1

• 0, 1, 2, 3, 4, 5, 6, 7

• 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, A, B, C, D, E, F

The RGB value below produces a shade of green. What does the number 175 represent?

• The amount of red

• The amount of green

• The amount of blue

• The amount of black

What does a computer use short-term memory, or RAM, for?

• To make the data needed for running applications quick to access and easy to modify

• To tell the computer how to start up

• To provide instructions to the computer for performing functions

• To back up and save documents for later use

What is the purpose of the computer's CPU?

• To store data on remote servers, generally accessed via the internet

• To manage a computer's memory and processes as well as all of its software and hardware

• To convert data in an encoded format back into the original sequence of letters and symbols

• To control the computer's functions by reading and following programmed directions

What does RAM stand for?

• Random access megabytes

• Random access memory

• Read access memory

• Reading and memorizing

What are three trade-offs of storing data in the cloud?

• You may not be able to access your data if the cloud service goes down.

• The more space you need for data, the more expensive cloud storage becomes.

• Your files are less likely to get lost but more vulnerable to data breaches.

• You can store a lot of data in the cloud, but only temporarily.