Which term describes logical terms used to combine, exclude, or modify search results in queries?

Which term describes logical terms used to combine, exclude, or modify search results in queries?

• A. Boolean operator
• B. Subject heading
• C. Keyword search
• D. Digital resources

Answer: (A)

Applying Boolean logic to search queries is about using operators that connect, exclude, or modify terms to refine results. Those operators—commonly AND, OR, and NOT—let you control how your terms relate. For example, using AND requires both terms to appear, narrowing results to items that include both; OR broadens results to include either term; NOT excludes a term to filter out unwanted topics. In practice, you can build more precise searches by grouping terms with parentheses and chaining these operators, which helps you find just what you need more efficiently. Other terms don’t fit because a subject heading is a label assigned to resources to describe topics, a keyword search is simply the act of entering terms, and digital resources are the materials you’re searching through.

Applying Boolean logic to search queries is about using operators that connect, exclude, or modify terms to refine results. Those operators—commonly AND, OR, and NOT—let you control how your terms relate. For example, using AND requires both terms to appear, narrowing results to items that include both; OR broadens results to include either term; NOT excludes a term to filter out unwanted topics. In practice, you can build more precise searches by grouping terms with parentheses and chaining these operators, which helps you find just what you need more efficiently.

Other terms don’t fit because a subject heading is a label assigned to resources to describe topics, a keyword search is simply the act of entering terms, and digital resources are the materials you’re searching through.