Data coupling: It is the relationship between the modules. When the data is shared from one module to another, it is known as data coupling. Call by value: The copy of actual parameter is sent which is then stored in the formal parameters. Call by reference: The address of the actual parameters is sent which is then stored in the formal parameters.

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Chapter 7, Problem 13CRP

Program Plan Intro

Data coupling:

It is the relationship between the modules. When the data is shared from one module to another, it is known as data coupling.

Call by value:

The copy of actual parameter is sent which is then stored in the formal parameters.

Call by reference:

The address of the actual parameters is sent which is then stored in the formal parameters.

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