CS 1: Big Idea #3 Practice

Front

Which concept involves assigning a value to a variable in programming?

Back

Variable Assignment

Answer explanation

Variable Assignment is the concept of assigning a value to a variable in programming. It allows you to store data that can be used and manipulated throughout your code.

Front

Which of the following is used to perform calculations in programming? Boolean Expressions, Mathematical Expressions, Developing Algorithms, Conditionals - selection

Back

Mathematical Expressions

Answer explanation

Mathematical Expressions are used to perform calculations in programming, allowing for operations like addition, subtraction, multiplication, and division. Other options like Boolean Expressions and Conditionals do not perform calculations.

Front

What is a sequence of characters used in programming known as?

Back

Strings

Answer explanation

In programming, a sequence of characters is called a 'string'. Strings are used to represent text and can include letters, numbers, and symbols, making 'Strings' the correct answer among the options provided.

Front

Which concept involves making decisions based on conditions in programming?

Back

Conditionals - selection

Answer explanation

Conditionals, or selection statements, allow programmers to make decisions based on specific conditions. They enable the execution of different code paths depending on whether a condition evaluates to true or false.

Front

What is the process of finding a specific item in a sorted list by repeatedly dividing the search interval in half?

Back

Binary Search

Answer explanation

The process described is known as Binary Search. It efficiently finds a specific item in a sorted list by dividing the search interval in half, allowing for faster searches compared to Linear Search.

Front

Which term refers to a sequence of instructions that solve a problem or perform a task?

Back

Algorithm

Answer explanation

An algorithm is a sequence of instructions designed to solve a problem or perform a task. It is a fundamental concept in computer science, distinguishing it from terms like abstraction, debugging, and index.

Front

What is the term for a data type that can hold one of two possible values, typically true or false?

Back

Boolean values

Answer explanation

The term for a data type that can hold one of two possible values, typically true or false, is 'Boolean values'. This distinguishes it from other types like String, List, or Variable, which can hold more complex data.

Front

What is the process of combining two or more strings into one?

Back

Concatenation

Answer explanation

The process of combining two or more strings into one is called concatenation. This operation joins the strings end-to-end, creating a single string from multiple inputs.

Front

Which term describes something that repeats a set of instructions until a specific condition is met?

Back

Loop (iteration)

Answer explanation

A 'Loop (iteration)' is a programming construct that repeats a set of instructions until a specified condition is met, making it the correct term for this concept.

Front

What are variables in a program?

Back

Placeholders for values that a program needs

Answer explanation

Variables are placeholders for values that a program needs, allowing for dynamic data storage and manipulation. They can hold different types of data, making them essential for both textual and mathematical expressions.