EJB (FAQS) Programming Interview Questions [65 Questions]

  1. Need of EJBWhat is the need of EJB?
  2. Metadata AnnotationWhat is metadata annotation?
    How it is useful in EJB 3.0?
  3. Heavy Weight and Light WeightWhy is ejb2.x considered as heavy weight and ejb3.0 is considered as light weight?
    What you mean by heavy/light weight?
    How it affects the performance of server?
  4. Map Entity Bean Field with OracleHow to map the Entity Bean field with Oracle?
  5. JNDIWhy is JNDI used.
    Do we have any alternative for JNDI?
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