True or False? With argument passage by reference, the address of the caller\'s

Question

True or False? With argument passage by reference, the address of the caller's argument is sent to the function. True or False? If a function contains a statement that changes a value parameter, only the copy of the caller's argument is changed, not the original. A function SomeFunc has two parameters, alpha and beta, of type int. The data flow for alpha one-way, into the function. The data flow for beta is two-way, into and out of the function. What is most appropriate function heading for SomeFunc? void SomeFunc(int alpha, int beta) void SomeFunc(int& alpha, int beta) void SomeFunc(int alpha, int& beta) void SomeFunc(int& alpha, int& beta) Consider the function definition void Demo(int intVal, float& floatVal) {intVal = intVal * 2;

Explanation / Answer

18) true , in call by reference the address of the actual parameter is passed to function to access it's value in that address.

19) true , because you are modifying formal parameter in this case.

20) option C is correct

Because alpha variable uses call by value (I.e value is passed only ) and beta variable uses call by reference (any changes made are reflected back I.e two way)

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