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Which annotation is used to enable Spring Boot's auto-configuration in the main application class?

easy📝 Syntax Q3 of 15
Spring Boot - Fundamentals
Which annotation is used to enable Spring Boot's auto-configuration in the main application class?
A@EnableAutoConfig
B@SpringBootApplication
C@AutoConfig
D@SpringConfig
Step-by-Step Solution
Solution:
  1. Step 1: Identify the correct annotation for Spring Boot apps

    The @SpringBootApplication annotation enables auto-configuration, component scanning, and configuration in one.
  2. Step 2: Check other options

    The other options are incorrect or do not exist in Spring Boot.
  3. Final Answer:

    @SpringBootApplication -> Option B
  4. Quick Check:

    Main annotation = @SpringBootApplication [OK]
Quick Trick: Use @SpringBootApplication for main class setup [OK]
Common Mistakes:
  • Using @EnableAutoConfig which does not exist
  • Confusing with @AutoConfig or @SpringConfig
  • Forgetting to add this annotation in main class

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