Hibernate

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This set of Advanced JAVA Multiple Choice Questions & Answers (MCQs) focuses on Hibernate

Q1 | Which of the following is not a core component of Hibernate?
  • JDBC
  • SessionFactory
  • Session
  • Configuration
Answer: JDBC
Q2 | Is Session a thread-safe object?
  • True
  • False
  • none
  • all
Answer: False
Q3 | SessionFactory is a thread-safe object.
  • True
  • False
  • none
  • all
Answer: True
Q4 | Which of the following methods returns proxy object?
  • loadDatabase()
  • getDatabase()
  • load()
  • get()
Answer: load()
Q5 | Which of the following methods hits database always?
  • load()
  • loadDatabase()
  • getDatabase()
  • get()
Answer: get()
Q6 | Which of the following method is used inside session only?
  • merge()
  • update()
  • end()
  • kill()
Answer: update()
Q7 | The SessionFactory is heavyweight object.
  • False
  • True
  • none
  • all
Answer: True
Q8 | Which of the following is not a state of object in Hibernate?
  • Attached()
  • Detached()
  • Persistent()
  • Transient()
Answer: Attached()
Q9 | Which of the following is true about HQL?
  • HQL takes java objects in the same way as SQL takes tables.
  • HQL is a Object Oriented Query language
  • HQL is database independent.
  • All of the above.
Answer: All of the above.
Q10 | Which of the following is not an inheritance mapping strategies?
  • Table per hierarchy
  • Table per concrete class
  • Table per subclass
  • Table per class
Answer: Table per class
Q11 | Which of the following is not an advantage of using Hibernate Query Language?
  • Database independent
  • Easy to write query
  • No need to learn SQL
  • Difficult to implement
Answer: Difficult to implement
Q12 | In which file database table configuration is stored?
  • .dbm
  • .hbm
  • .ora
  • .sql
Answer: .hbm
Q13 | Which of the following is not an advantage of Hibernate Criteria API?
  • Allows to use aggregate functions
  • Cannot order the result set
  • Allows to fetch only selected columns of result
  • Can add conditions while fetching results
Answer: Cannot order the result set
Q14 | What is the basic concept of Spring?
  • Factory pattern
  • Singleton pattern
  • Dependency injection or Inversion of control
  • Abstract factory pattern
Answer: Dependency injection or Inversion of control
Q15 | Which spring module provides the capability of DI or IOC?
  • Spring web
  • Core container
  • AOP
  • Data access
Answer: Core container
Q16 | What are beans in the concept of Spring or what are spring beans?
  • Controller classes
  • Service classes
  • Repository
  • Any class that is managed by the container.
Answer: Any class that is managed by the container.
Q17 | How does spring achieve DI or IOC?
  • Service locator pattern
  • Factory pattern
  • Abstract factory pattern
  • Singleton pattern
Answer: Service locator pattern
Q18 | Which interface in spring is responsible for Instantiating and managing the so calledSpring beans?
  • Bean Factory
  • ApplicationContext
  • BeanDefenition
  • BeanDefenition
Answer: ApplicationContext
Q19 | Beans can be created by which of the following properties?
  • Scope
  • Property
  • Class
  • It’s own constructor
Answer: It’s own constructor
Q20 | Which attribute is used to specify class name of the bean?
  • name
  • id
  • class
  • constructor-args
Answer: class
Q21 | Which of the following method can be used to used to instantiate a method?
  • static factory method
  • default-init method
  • destroy method
  • lazy-init method
Answer: static factory method
Q22 | Which attribute is used to specify static factory-method?
  • factory-method
  • default-init method
  • destroy method
  • lazy-init method
Answer: factory-method
Q23 | Purpose of Static Factory Method?
  • Static method to create an object
  • Initialize bean
  • All of the mentioned
  • None of the mentioned
Answer: Static method to create an object
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