Refer to the exhibit. AppConfig is a Java configuration class. Which two statements are true? (Choose two.)

Question

Exhibit

Options

• AThe clientService bean declared will have prototype scope by default.
• BThe name of the clientService() method is invalid and will throw an error.
• CThe clientService bean will be lazy initialized the first time accessed.
• DThe bean is of type clientService and by default will be a Singleton.
• EThe Java configuration can be profile specific by adding a @Profile annotation.

• A
  8% (4)
• B
  4% (2)
• C
  19% (10)
• D
  70% (37)

Explanation

D is correct because Spring beans declared via @Bean in a @Configuration class are Singleton by default - the container creates exactly one instance and reuses it for every injection point. E is correct because @Profile can be applied to a @Configuration class (or individual @Bean methods) to activate that configuration only when a matching Spring profile is active.

A is wrong because Singleton - not prototype - is the default scope; you'd need @Scope("prototype") explicitly. B is wrong because clientService is a perfectly valid camelCase Java method name and causes no errors. C is wrong because Spring beans are eagerly initialized at container startup by default; you'd need @Lazy to defer initialization until first access.

Memory tip: "Spring's default is Singleton, and Singletons are eager" - any deviation (prototype scope, lazy init) always requires an explicit annotation (@Scope, @Lazy). If the question says "by default," think Singleton + eager.

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