Java Application Lifecycle and Annotations MCQs Questions

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Which annotation is used to declare a filter in a Java web application?

A) `@Resource` B) `@WebListener` C) `@WebFilter` D) `@WebServlet`

Discuss

Answer & Solution

Answer: Option C

No explanation is given for this question. Let's Discuss on Board

In a Java web application, what is the purpose of the `@ContextConfiguration` annotation?

A) To define JavaBean properties B) To execute SQL queries C) To create JavaBeans D) To configure the application's context

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Answer & Solution

Answer: Option D

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What is the primary role of the `ServletContextEvent` class in Java web applications?

A) To encapsulate events related to the `ServletContext` B) To define JavaBean properties C) To execute SQL queries D) To create JavaBeans

Discuss

Answer & Solution

Answer: Option A

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Which annotation is used to specify a custom error page in a Java web application?

A) `@WebListener` B) `@WebFilter` C) `@WebServlet` D) `@ErrorPage`

Discuss

Answer & Solution

Answer: Option D

No explanation is given for this question. Let's Discuss on Board

In Java EE applications, what is the purpose of the `@PersistenceContext` annotation?

A) To define JavaBean properties B) To execute SQL queries C) To inject a container-managed persistence context into a component D) To create JavaBeans

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Answer & Solution

Answer: Option C

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What does the `@Singleton` annotation indicate in Java EE applications?

A) To execute SQL queries B) That a class should be instantiated only once per application C) To create JavaBeans D) None of These

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Answer & Solution

Answer: Option B

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In Java web applications, what is the purpose of the `@RequestScoped` annotation?

A) To create JavaBeans B) To execute SQL queries C) To indicate that a bean's scope is limited to a single HTTP request D) To define JavaBean properties

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Answer & Solution

Answer: Option C

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What is the purpose of the `@WebInitParam` annotation in a servlet declaration?

A) To define JavaBean properties B) To execute SQL queries C) To create JavaBeans D) To specify initialization parameters for a servlet

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Answer & Solution

Answer: Option D

No explanation is given for this question. Let's Discuss on Board

In Java EE applications, what is the primary role of the `@MessageDriven` annotation?

A) To indicate that a class is a message-driven bean (MDB) B) To define JavaBean properties C) To execute SQL queries D) To create JavaBeans

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Answer & Solution

Answer: Option A

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Which annotation is used to specify a custom error page for a specific exception type in a Java web application?

A) `@WebListener` B) `@WebServlet` C) `@WebFilter` D) `@ErrorPage`

Discuss

Answer & Solution

Answer: Option D

No explanation is given for this question. Let's Discuss on Board

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Java Application Lifecycle and Annotations MCQs Questions | Java Program MCQs