Multi Choice Type QuestionWhat happens if you initialize more than one member of a union in C?Marks : 1Negative Marks : 0Answer hereIt results in a compilation error.The last member initialized retains its value.All initialized members share the same memory.It is not possible to initialize multiple members.ClearNext
Question
Multi Choice Type QuestionWhat happens if you initialize more than one member of a union in C?Marks : 1Negative Marks : 0Answer hereIt results in a compilation error.The last member initialized retains its value.All initialized members share the same memory.It is not possible to initialize multiple members.ClearNext
Solution
The correct answer is: All initialized members share the same memory.
Explanation: In C, a union is a special data type that allows you to store different types of data in the same memory location. You can define a union with many members, but only one member can contain a value at any given time. This is because all members of a union share the same memory location. So, if you initialize more than one member of a union, only the last member initialized will retain its value because it overwrites the previous value in the shared memory.
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Multi Choice Type QuestionWhat determines the size of a union in C?Marks : 1Negative Marks : 0Answer hereThe biggest member in the unionThe sum of the sizes of all membersThe first member in the unionThe last member in the union
Multi Choice Type QuestionWhat is the primary difference between a structure and a union in C?Marks : 1Negative Marks : 0Answer hereStructure allows nested membersUnion allows nested membersStructure does not allows multiple membersUnion allows only one active memberClearPrev
Multi Choice Type QuestionHow many members of a union can contain a value at any given time?Marks : 1Negative Marks : 0Answer hereAll membersOnly one memberTwo membersThree members
Select the correct answerWhat is the purpose of the union keyword in C?OptionsTo define a constantTo declare a new data typeTo create a structureTo allocate memory for an array
Multi Choice Type QuestionWhich of the following statements is true regarding the structure of a for loop in C?Marks : 1Negative Marks : 0Answer hereThe initialization statement is executed after the loop body.The condition is checked before executing the loop body.The increment/decrement statement is executed twice per iteration.The loop body must contain at least one statement.
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