Spring Boot will find and load property files in which of the following? (Choose the best answer.)

Question

Options

• AA *.properties file matching the name of the class annotated with @SpringBootApplication.
• Bconfig.properties or config.yml, usually located in the classpath root.
• Capplication.properties or application.yml, usually located in the classpath root.
• Denv.properties or env.yml, usually located in the classpath root.

• A
  4% (3)
• B
  9% (6)
• C
  86% (59)
• D
  1% (1)

Explanation

Spring Boot automatically discovers and loads application.properties or application.yml from the classpath root (typically src/main/resources/) by convention, requiring zero additional configuration - this is a core part of Spring Boot's "opinionated defaults" philosophy.

Why the distractors are wrong:

• A is wrong because Spring Boot does not look for a properties file named after your @SpringBootApplication class - that annotation bootstraps the application context, not property loading.
• B is wrong because config.properties/config.yml are not Spring Boot conventions; while a config/ subdirectory is a valid search location, the file must still be named application.*.
• D is wrong because env.properties/env.yml have no special meaning in Spring Boot - environment-specific overrides use profiles like application-dev.properties, not a separate filename.

Memory tip: Think "A"pplication → "A"pplication.properties - the file name mirrors the word "application," just like @SpringBootApplication marks the main application class. Both share the same root concept: the application itself.

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