Revise later
SpaceTo flip
If confident
All Flashcards
What is a Boolean variable?
A variable that can be either 'true' or 'false'.
What is a relational operator?
A symbol that compares two values and returns a Boolean value.
What is a logical operator?
A symbol that combines or modifies Boolean expressions.
Define the 'NOT' operator.
Flips the Boolean value; 'true' becomes 'false' and vice versa.
Define the 'AND' operator.
Returns 'true' only if both conditions are 'true'.
Define the 'OR' operator.
Returns 'true' if at least one condition is 'true'.
What does the '==' operator do?
Checks if two values are equal.
What does the '!=' operator do?
Checks if two values are not equal.
What does the '>=' operator do?
Checks if the left value is greater than or equal to the right value.
What does the '<=' operator do?
Checks if the left value is less than or equal to the right value.
How is Boolean logic used in search engines?
To filter and refine search results based on keywords and operators like 'AND', 'OR', and 'NOT'.
How is Boolean logic used in access control systems?
To determine whether a user has permission to access a resource based on their credentials and defined rules.
How is Boolean logic used in data validation?
To check if input data meets specific criteria, such as format or range, before processing it.
How is Boolean logic used in game development?
To control game mechanics, such as collision detection, character movement, and event triggers.
How is Boolean logic used in recommendation systems?
To filter and suggest items to users based on their past behavior and preferences.
How is Boolean logic used in network routing?
To determine the best path for data packets to travel across a network.
How is Boolean logic used in database queries?
To filter and retrieve specific records from a database based on specified conditions.
How is Boolean logic used in artificial intelligence?
To create decision-making algorithms and expert systems that mimic human reasoning.
How is Boolean logic used in compilers?
To parse and analyze code, ensuring it conforms to the language's syntax and semantics.
How is Boolean logic used in operating systems?
To manage system resources, schedule tasks, and handle interrupts.
Why are Boolean values important in programming?
They are the backbone of conditional statements and loops, controlling program flow.
Explain the precedence of logical operators.
'NOT' is evaluated before 'AND', which is evaluated before 'OR'.
How do relational operators create Boolean values?
By comparing two values and returning 'true' or 'false' based on their relationship.
What is the purpose of a truth table?
To visualize how logical operators work for all possible combinations of inputs.
When is the 'AND' operator useful?
When you need to ensure that multiple conditions are met before executing a block of code.
When is the 'OR' operator useful?
When you need to execute a block of code if at least one of several conditions is met.
Explain how 'NOT' can simplify complex conditions.
It can be used to reverse a condition, making code more readable or efficient in certain cases.
Describe the role of Boolean logic in conditional statements.
Boolean expressions determine which branch of a conditional statement is executed.
How does Boolean logic relate to loops?
Boolean conditions control whether a loop continues to iterate or terminates.
What is the significance of understanding Boolean logic?
It is foundational for many other computer science concepts and is essential for problem-solving.