U1 Digital Information Vocab Quiz

What is the binary system?

• A way of representing information using ten options

• A way of representing information using only two options

• A way of representing information using letters

• A way of representing information using colors

How many bits are in a byte?

• 2

• 4

• 8

• 16

What does "bit" stand for?

• Binary Integer

• Binary Digit

• Byte Information Token

• Basic Information Type

What is an overflow error?

• Error from representing a number that is too precise

• Error from attempting to represent a number that is too large

• Error from dividing by zero

• Error from using the wrong data type

Which of the following best describes analog data?

• Data that changes discretely through a finite set of possible values

• Data with values that change continuously over time

• Data that is always binary

• Data that is always digital

What is digital data?

• Data that changes continuously

• Data that changes discretely through a finite set of possible values

• Data that cannot be represented by computers

• Data that is always analog

What is sampling in the context of digital data?

• A process for compressing data

• A process for creating a digital representation of analog data by measuring at regular intervals

• A process for encrypting data

• A process for transmitting data

Which of the following is an example of analog data?

• The number of students in a class

• The position of a sprinter during a race

• The result of a coin toss

• The number of pages in a book

What is lossless compression?

• A process that loses some information

• A process that reduces the number of bits needed to represent something without losing any information

• A process that cannot be reversed

• A process that increases file size

Which statement about lossy compression is correct?

• It is always reversible

• No information is lost

• Some information is lost and the process is not reversible

• It increases the number of bits