Basic oops concepts Like what is inheritance,class,object,static class,interfaces Basic Sql questions like whar is cursor,when to use self join,aggregate function,difference between primary and unique key,Difference between where and have clause sql query to get to count no of fields where filed total count >1 Basic datastructure what is queue,linkedlist,doubly link list,stack 1 programming question find frequency of no of char in string and retrieve max char value

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