Which of the following parameter passing techniques involves copying the argument to the corresponding parameter?
a) Call by result
b) Call by reference
c) Call by name
d) Call by value
In languages that distinguish between procedures and functions, how do procedure calls compare to function calls?
a) Both function and procedure calls are expressions.
b) Both function and procedure calls are statements.
c) A function call is an expression, whereas a procedure call is a statement.
d) A function call is a statement, whereas a procedure