Answer / abhinav

call by value- passing the value of variable to the function.

call by reference-passing the address of variable to the function.

Answer / ankit sheladiya

If data is passed by value, the data is copied from the variable used in for example main() to a variable used by the function. So if the data passed (that is stored in the function variable) is modified inside the function, the value is only changed in the variable used inside the function. Let’s take a look at a call by value example

Answer / neeraj mishra

Call by value:
A copy of actual parameters is passed into formal parameters.

Call by reference:
Reference or address of actual parameters is passed into formal parameters.

To learn more about them with example you can refer below link:
http://www.thecrazyprogrammer.com/2015/12/difference-between-call-by-value-and-call-by-reference-in-c.html

Happy Coding!! :) :)

Answer / amit dhamapurkar

simplest possible method of passing the parameters the
actual parameter are evaluated and their r values are passed
to the subroutine in location determined by the language
implimentation

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