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EPractice Lab mock 2 question 19, singleton bean and JDBI

 
Himai Minh
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In this mock question:

Which of the following circumstances singleton session bean can be used?
....
c:The bean implements JDBC to update data.



C is not the correct option according to EPractice Lab.
But I believe a singleton bean can access JDBC resource manager. At least , the specification does not say a singleton cannot use JDBC API.
So, I think C is correct.
 
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