WGU D684 - Section 1(LATEST
2025/2026) STUDY GUIDE WITH
COMPLETE SOLUTIONS
Analog Data
Data represented in a continuous and variable form
ASCII (American Standard Code for Information Interchange)
A standard encoding system for text characters that use numeric values to represent letters,
numbers, and symbols.
Bandwidth
The maximum rate of data transfer across a network or communication channel.
Bandwidth
_____ is usually measured in bits per second.
Boolean expression
a logical statement that can only be true or false and uses operators like AND, OR, and NOT
, Character
a single letter, digit, or symbol used in writing text
Character Set
A collection of characters that a computer can recognize and process, like ASCII or Unicode
Compression Ratio
the ratio of the original data size to the compressed data size, indicating how much the data has
been reduced
Control Structure
Constructs in programming that control the flow of execution, such as loops and conditional
statements
Data
Raw facts and figures that can be processed to produce meaningful information
Data Compression
The process of reducing the size of data to save space or transmission time
Data Types
Categories of data that define what kind of value can be stored, like Integers, Floats, and Strings,
and how it can be used
Declaration
a statement in programming that specifies the name and type of a variable or function without
assigning a value
Digital Data
Data represented by discrete binary values (zeroes and ones)
Floating Point
A way to represent real numbers that can have fictional parts using a format that includes a
base and exponent
Huffman Encoding
A compression technique that uses variable-length codes for data represented on frequency of
occurrence.
2025/2026) STUDY GUIDE WITH
COMPLETE SOLUTIONS
Analog Data
Data represented in a continuous and variable form
ASCII (American Standard Code for Information Interchange)
A standard encoding system for text characters that use numeric values to represent letters,
numbers, and symbols.
Bandwidth
The maximum rate of data transfer across a network or communication channel.
Bandwidth
_____ is usually measured in bits per second.
Boolean expression
a logical statement that can only be true or false and uses operators like AND, OR, and NOT
, Character
a single letter, digit, or symbol used in writing text
Character Set
A collection of characters that a computer can recognize and process, like ASCII or Unicode
Compression Ratio
the ratio of the original data size to the compressed data size, indicating how much the data has
been reduced
Control Structure
Constructs in programming that control the flow of execution, such as loops and conditional
statements
Data
Raw facts and figures that can be processed to produce meaningful information
Data Compression
The process of reducing the size of data to save space or transmission time
Data Types
Categories of data that define what kind of value can be stored, like Integers, Floats, and Strings,
and how it can be used
Declaration
a statement in programming that specifies the name and type of a variable or function without
assigning a value
Digital Data
Data represented by discrete binary values (zeroes and ones)
Floating Point
A way to represent real numbers that can have fictional parts using a format that includes a
base and exponent
Huffman Encoding
A compression technique that uses variable-length codes for data represented on frequency of
occurrence.
