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Computer Microsoft Word Difficulty: Medium

Which data structure is used to check for balanced parentheses in an expression? What is the purpose of the BasicObject class in Ruby? VAB stands for___________? Consider a database name "db_name" whose attributes are intern_id (primary key), subject. Intern_id = {1, 2, 3, 4, 5, 6} Subject = {sql, oop, sql, oop, c, c++} If these are one to one relation then what will be the output of the following MySQL statement? SELECT intern_id FROM db_name WHERE subject IN (c, c++); Window key + F1