D684(WGU) - Introduction to Computer
Science Questions with Verified Correct
Answers
analog data
data represented in a continuous and variable form
American Standard Code for Information Interchange (ASCII)
a standard encoding system for text characters that uses numeric values to represent letters,
numbers, and symbols
bandwidth
the maximum rate of data transfer across a network or communication channel, usually
measured in bits per second
binary
a numerical system that uses only two digits, zero and one, to represent data in computing
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 using discrete binary values (zeroes and ones)
floating point
a way to represent real numbers that can have fractional parts using a format that includes a
base and an exponent
Huffman encoding
, a compression technique that uses variable-length codes for data representation based on
frequency of occurrence
information
data that have been processed or organized in a meaningful way to be useful
integer
a whole number
keyword encoding
a method of data compression that replaces frequently occurring patterns with shorter codes
lossless
a type of data compression where no information is lost and the original data can be perfectly
reconstructed
lossy
a type of data compression that reduces file size by permanently eliminating some
information, which may affect quality
numeric
any value that is a number
overflow
a condition in which a calculation exceeds the maximum value that can be represented within
a given number of bits
pulse-code modulation (PCM)
a method used to digitally represent analog signals
Science Questions with Verified Correct
Answers
analog data
data represented in a continuous and variable form
American Standard Code for Information Interchange (ASCII)
a standard encoding system for text characters that uses numeric values to represent letters,
numbers, and symbols
bandwidth
the maximum rate of data transfer across a network or communication channel, usually
measured in bits per second
binary
a numerical system that uses only two digits, zero and one, to represent data in computing
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 using discrete binary values (zeroes and ones)
floating point
a way to represent real numbers that can have fractional parts using a format that includes a
base and an exponent
Huffman encoding
, a compression technique that uses variable-length codes for data representation based on
frequency of occurrence
information
data that have been processed or organized in a meaningful way to be useful
integer
a whole number
keyword encoding
a method of data compression that replaces frequently occurring patterns with shorter codes
lossless
a type of data compression where no information is lost and the original data can be perfectly
reconstructed
lossy
a type of data compression that reduces file size by permanently eliminating some
information, which may affect quality
numeric
any value that is a number
overflow
a condition in which a calculation exceeds the maximum value that can be represented within
a given number of bits
pulse-code modulation (PCM)
a method used to digitally represent analog signals
