Question 1

A static variable that is defined within a function is initialized only once, the first time the function is called.

Accepted Answer

A) True 
 B)False

Question 2

Which of the following statements about global variables is true?

Accepted Answer

A)   A global variable is accessible only to the main function.
B)   A global variable is declared in the highest-level block in which it is used.
C)   A global variable can have the same name as a variable that is declared locally within a function.
D)   If a function contains a local variable with the same name as a global variable, the global variable's name takes precedence within the function.
E)   All of these are trueF) A) and C)
G) B) and D)

Question 3

Which line in the following program contains the prototype for the showDub function? 
1  \quad #include <iostream>
2  \quad using namespace std;
3
4  \quad void showDub(int) ;
5
6  \quad int main() 
7  \quad {
8  \quad\quad int x = 2;
9
10  \quad\quad showDub(x) ;
11  \quad\quad cout \quad\quad return 0;
13  \quad }
14
15 void showDub(int num) 
16 {
17 cout << (num * 2)  << endl;
18 }

Accepted Answer

A)   4
B)   6
C)   10
D)   15 E) B) and C)
F) C) and D)

Question 4

What is the output of the following program? 
#include <iostream>
using namespace std;
void showDub(int) ;
int main() 
{
 \quad int x = 2;
 \quad showDub(x) ;
 \quad cout \quad return 0;
}
void showDub(int num) 
{
 \quad cout << (num * 2)  << endl;
}

Accepted Answer

A)   22
B)   42
C)   24
D)   44 E) A) and B)
F) A) and C)

Question 5

A(n)  _________ is information that is passed to a function, and a(n)  _________ is information that is received by a function.

Accepted Answer

A)   function call, function header
B)   parameter, argument
C)   argument, parameter
D)   prototype, header
E)   None of theseF) A) and C)
G) A) and E)

Question 6

In a function header, you must furnish

Accepted Answer

A)   data type(s)  of the parameters
B)   data type of the return value
C)   the name of function
D)   names of parameter variables
E)   All of theseF) All of the above
G) C) and D)

Question 7

Look at the following function prototype. int myFunction(double) ;
What is the data type of the funtion's return value?

Accepted Answer

A)   int
B)   double
C)   void
D)   Can't tell from the prototypeE) B) and D)
F) All of the above

Question 8

The value in a(n)  _______ variable persists between function calls.

Accepted Answer

A)   dynamic
B)   local
C)   counter
D)   static localE) B) and C)
F) All of the above

Question 9

A local variable and a global variable may not have the same name within the same program.

Accepted Answer

A) True 
 B)False

Exam 6: Functions

Correct Answer
verified

In a function header, you must furnish

Correct Answer
verified

A static variable that is defined within a function is initialized only once, the first time the function is called.

Correct Answer
verified

Which of the following statements about global variables is true?

Correct Answer
verified

Look at the following function prototype. int myFunction(double) ; What is the data type of the funtion's return value?

Correct Answer
verified

A(n) _ is information that is passed to a function, and a(n) _ is information that is received by a function.

Correct Answer
verified

What is the output of the following program? #include <iostream> using namespace std; void showDub(int) ; int main() { $\quad$ int x = 2; $\quad$ showDub(x) ; $\quad$ cout << x << endl; $\quad$ return 0; } void showDub(int num) { $\quad$ cout << (num * 2) << endl; }

Correct Answer
verified

A local variable and a global variable may not have the same name within the same program.

Correct Answer
verified

The value in a(n) _______ variable persists between function calls.

Correct Answer
verified

Exam 6: Functions

Correct AnswerverifiedShow Answer

In a function header, you must furnish

Correct AnswerverifiedShow Answer

A static variable that is defined within a function is initialized only once, the first time the function is called.

Correct AnswerverifiedShow Answer

Which of the following statements about global variables is true?

Correct AnswerverifiedShow Answer

Look at the following function prototype. int myFunction(double) ; What is the data type of the funtion's return value?

Correct AnswerverifiedShow Answer

A(n) _________ is information that is passed to a function, and a(n) _________ is information that is received by a function.

Correct AnswerverifiedShow Answer

What is the output of the following program? #include <iostream> using namespace std; void showDub(int) ; int main() { \quad int x = 2; \quad showDub(x) ; \quad cout << x << endl; \quad return 0; } void showDub(int num) { \quad cout << (num * 2) << endl; }

Correct AnswerverifiedShow Answer

A local variable and a global variable may not have the same name within the same program.

Correct AnswerverifiedShow Answer

The value in a(n) _______ variable persists between function calls.

Correct AnswerverifiedShow Answer

Correct Answer
verified

Correct Answer
verified

Correct Answer
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Correct Answer
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Correct Answer
verified

A(n) _ is information that is passed to a function, and a(n) _ is information that is received by a function.

Correct Answer
verified

What is the output of the following program? #include <iostream> using namespace std; void showDub(int) ; int main() { $\quad$ int x = 2; $\quad$ showDub(x) ; $\quad$ cout << x << endl; $\quad$ return 0; } void showDub(int num) { $\quad$ cout << (num * 2) << endl; }

Correct Answer
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Correct Answer
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Correct Answer
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