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|Java - Interview Questions and Answers|
|Ans. LDAP servers are typically used in J2EE applications to authenticate and authorise users. LDAP servers are hierarchical and are optimized for read access, so likely to be faster than database in providing read access.|
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|Like Discuss Correct / Improve  java   j2ee   ldap   servers   authentication   authorization   architecture   technical lead   technical architect|
|Why do we need Inner classes ? Cant we just work with outer classes wherever we implement Inner classes ?|
|Difference between first level and second level cache in hibernate ?|
|What are the benefits of using Spring Framework ?|
|What things should be kept in mind while creating your own exceptions in Java?|
|Difference between C++ and Java ?|
|Difference between SAX and DOM Parser ?|
|How to implement an immutable class ?|
|Difference between Factory and Abstract Factory Design Pattern ?|
|What are various types of Class loaders used by JVM ?|
|What things you would care about to improve the performance of Application if its identified that its DB communication that needs to be improved ?|