WGU D684 INTRODUCTION TO COMPUTER SCIENCE CHAPTER 1 QUESTIONS AND ANSWERS 2026 Which value is stored as an integer in computer programming? - "0" - true - -306.5 - 21 - Correct Answer-21 Which coding construct repeats a task while a

WGU D684 INTRODUCTION TO COMPUTER SCIENCE CHAPTER 1 QUESTIONS AND ANSWERS 2026 Which value is stored as an integer in computer programming? - "0" - true - -306.5 - 21 - Correct Answer-21 Which coding construct repeats a task while a condition is true? - Iteration - Input/output - Selection - Assignment - Correct Answer-Iteration : The iteration construct, or the looping construct, uses a while statement to perform the same task over and over again as long as a condition is true. How are items accessed in a stack? - The item removed is the one that has been in the longest time. - All items can be added to or removed from any location. - The last item to be added becomes the first item removed. - All items can be accessed or changed but not easily inserted or removed. - Correct Answer-The last item to be added becomes the first item removed. A web browser puts websites into a viewing history log and accesses the most recent one when the back button is clicked. Which data structure would be appropriate for this situation? - Record - List - Queue - Stack - Correct Answer-Stack What is the relationship between a parameter and an argument? - A parameter is passed to a function by reference, whereas an argument is passed by value. - A parameter is a temporary variable in a function that receives the actual value of an argument. - An argument is an identifier in a function that receives the value called the parameter. WGU D684 - An argument is a value set in the code by a calculation, whereas a parameter is set by user input. - Correct Answer-A parameter is a temporary variable in a function that receives the actual value of an argument. Which programming language is considered to be a declarative language? - Smalltalk - BASIC - Lisp - Java - Correct Answer-Lisp: The declarative programming paradigm is a model in which the results are described, but the steps to accomplish the results are not stated. There are two basic models within this paradigm, functional and logic. Lisp is an example of a declarative language 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 WGU D684 WGU D684 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 Radix point The decimal point in a number system that indicates the separation between integer and fractional parts Real A data type representing numbers that can have fractional parts, often called floating point numbers Reclocking WGU D684 WGU D684 The process of refreshing the timing signals in digital data to ensure accuracy and synchronization Run-length encoding A simple compression technique that replaces sequences of repeated characters with a single character and a count Scientific notation A method of representing very large or very small numbers by using powers of 10 Signed-magnitude representation A way of encoding positive and negative numbers where one bit represents the sign and the remaining bits represent the magnitude String A sequence of characters treated as a single data element and used for text manipulation Strong typing A feature in programming languages where each variable is explicitly declared to be of a specific type, reducing errors Ten's complement A mathematical method for representing negative numbers in a decimal system Unicode A universal character set that includes characters from virtually all writing sys