Question 1

What is the data type of the following function prototype's return value?
Int myFunction(double);

Accepted Answer

A)  int 
B)  double 
C)  void 
D)  cannot tell from the prototype 
A)  int 
B)  double 
C)  void 
D)  cannot tell from the prototype A

Question 2

A __________ argument is passed to a parameter when the actual argument is left out of the function.

Accepted Answer

A)  False 
B)  true 
C)  null 
D)  default 
E)  None of these 
A)  False 
B)  true 
C)  null 
D)  default 
E)  None of these D

Question 3

What will the following code display?
#include <iostream>
using namespace std;
void doSomething(int);
int main()
{
$\quad$int x = 2;
$\quad$cout << x << endl;
$\quad$doSomething(x);
$\quad$cout << x  << endl;
return 0;
}
void doSomething(int num)
{
$\quad$num = 0;
$\quad$cout << num << endl;
}

Accepted Answer

A)  2
0
2 
B)  2
2
2 
C)  0
0
0 
D)  2
0
0 
A)  2
0
2 
B)  2
2
2 
C)  0
0
0 
D)  2
0
0 A

Question 4

What will the following code display?
#include <iostream>
using namespace std;
int getValue(int);
int main()
{
$\quad$int x = 2;
$\quad$cout << getValue(x) << endl;
$\quad$return 0;
}
int getValue(int num)
{
$\quad$return num + 5;
}

Accepted Answer

A)  5 
B)  2 
C)  7 
D)  getValue(x) 
A)  5 
B)  2 
C)  7 
D)  getValue(x)

Question 5

This statement causes a function to end.

Accepted Answer

A)  end 
B)  terminate 
C)  return 
D)  release 
E)  None of these 
A)  end 
B)  terminate 
C)  return 
D)  release 
E)  None of these

Question 6

What will the following code display?
#include <iostream>
using namespace std;
void doSomething(int&);
int main()
{
$\quad$int x = 2;
$\quad$cout << x << endl;
$\quad$doSomething(x);
$\quad$cout << x << endl;
$\quad$return 0;
}
void doSomething(int& num)
{
$\quad$num = 0;
$\quad$cout << num << endl;
}

Accepted Answer

A)  2
0
2 
B)  2
2
2 
C)  0
0
0 
D)  2
0
0 
A)  2
0
2 
B)  2
2
2 
C)  0
0
0 
D)  2
0
0

Question 7

If a function is called more than once in a program, the values stored in the function's local variables do not _________ between function calls.

Accepted Answer

A)  persist 
B)  execute 
C)  communicate 
D)  change 
E)  None of these 
A)  persist 
B)  execute 
C)  communicate 
D)  change 
E)  None of these

Question 8

You must always furnish an argument with a function call.

Accepted Answer

A) True 
 B)False

Question 9

It is not considered good programming practice to declare all your variables globally.

Accepted Answer

A) True 
 B)False

Question 10

In the following function prototype, how many parameter variables does this function have?
Int myFunction(double, double, double);

Accepted Answer

A)  1 
B)  2 
C)  3 
D)  cannot tell from the prototype 
A)  1 
B)  2 
C)  3 
D)  cannot tell from the prototype

Question 11

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 these 
A)  function call, function header 
B)  parameter, argument 
C)  argument, parameter 
D)  prototype, header 
E)  None of these

Question 12

Local variables are initialized to zero by default.

Accepted Answer

A) True 
 B)False

Question 13

A collection of statements that performs a specific task is a(n)

Accepted Answer

A)  infinite loop 
B)  variable 
C)  constant 
D)  function 
E)  decision 
A)  infinite loop 
B)  variable 
C)  constant 
D)  function 
E)  decision

Question 14

The value in this type of variable persists between function calls.

Accepted Answer

A)  global 
B)  internal 
C)  static 
D)  dynamic 
E)  None of these 
A)  global 
B)  internal 
C)  static 
D)  dynamic 
E)  None of these

Question 15

Functions are ideal for menu-driven programs. When the user selects a menu item, the program can __________ the appropriate function.

Accepted Answer

A)  call 
B)  append 
C)  define 
D)  declare 
E)  None of these 
A)  call 
B)  append 
C)  define 
D)  declare 
E)  None of these

Question 16

Select all that apply. Which of the following statement(s) about global variables is(are) 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)  A global variable is the same as a named constant. 
E)  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. 
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)  A global variable is the same as a named constant. 
E)  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.

Question 17

Given the following header for a function named computeValue, which of the following is a valid call to the function?
Void computeValue(int value)

Accepted Answer

A)  computeValue(10) 
B)  computeValue(10); 
C)  void computeValue(10); 
D)  void computeValue(int x); 
A)  computeValue(10) 
B)  computeValue(10); 
C)  void computeValue(10); 
D)  void computeValue(int x);

Question 18

A function _________ eliminates the need to place a function definition before all calls to the function.

Accepted Answer

A)  header 
B)  prototype 
C)  argument 
D)  parameter 
E)  None of these 
A)  header 
B)  prototype 
C)  argument 
D)  parameter 
E)  None of these

Question 19

It is possible for a function to have some parameters with default arguments and some without.

Accepted Answer

A) True 
 B)False

Question 20

This is a dummy function that is called instead of the actual function it represents:

Accepted Answer

A)  main 
B)  stub 
C)  a driver 
D)  an overloaded function 
A)  main 
B)  stub 
C)  a driver 
D)  an overloaded function

What is the data type of the following function prototype's return value? Int myFunction(double);

A __________ argument is passed to a parameter when the actual argument is left out of the function.

What will the following code display? #include <iostream> using namespace std; void doSomething(int); int main() { $\quad$ int x = 2; $\quad$ cout << x << endl; $\quad$ doSomething(x); $\quad$ cout << x << endl; return 0; } void doSomething(int num) { $\quad$ num = 0; $\quad$ cout << num << endl; }

What will the following code display? #include <iostream> using namespace std; int getValue(int); int main() { $\quad$ int x = 2; $\quad$ cout << getValue(x) << endl; $\quad$ return 0; } int getValue(int num) { $\quad$ return num + 5; }

This statement causes a function to end.

If a function is called more than once in a program, the values stored in the function's local variables do not _________ between function calls.

You must always furnish an argument with a function call.

It is not considered good programming practice to declare all your variables globally.

In the following function prototype, how many parameter variables does this function have? Int myFunction(double, double, double);

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

Local variables are initialized to zero by default.

A collection of statements that performs a specific task is a(n)

The value in this type of variable persists between function calls.

Functions are ideal for menu-driven programs. When the user selects a menu item, the program can __________ the appropriate function.

Select all that apply. Which of the following statement(s) about global variables is(are) true?

Given the following header for a function named computeValue, which of the following is a valid call to the function? Void computeValue(int value)

A function _________ eliminates the need to place a function definition before all calls to the function.

It is possible for a function to have some parameters with default arguments and some without.

This is a dummy function that is called instead of the actual function it represents:

Introduction to Computers and Programming

Introduction to C

Expressions and Interactivity

Making Decisions

Loops and Files

Arrays and Vectors

Searching and Sorting Arrays

Pointers

Characters, C-Strings, and More About the String Class

Structured Data

Advanced File Operations

Introduction to Classes

More About Classes

Inheritance, Polymorphism, and Virtual Functions

Exceptions and Templates

The Standard Template Library

Linked Lists

Stacks and Queues

Recursion

Binary Trees

Filters

Exam 6: Functions

What is the data type of the following function prototype's return value? Int myFunction(double);

A __________ argument is passed to a parameter when the actual argument is left out of the function.

What will the following code display? #include <iostream> using namespace std; void doSomething(int); int main() { \quad int x = 2; \quad cout << x << endl; \quad doSomething(x); \quad cout << x << endl; return 0; } void doSomething(int num) { \quad num = 0; \quad cout << num << endl; }

What will the following code display? #include <iostream> using namespace std; int getValue(int); int main() { \quad int x = 2; \quad cout << getValue(x) << endl; \quad return 0; } int getValue(int num) { \quad return num + 5; }

This statement causes a function to end.

What will the following code display? #include <iostream> using namespace std; void doSomething(int&); int main() { \quad int x = 2; \quad cout << x << endl; \quad doSomething(x); \quad cout << x << endl; \quad return 0; } void doSomething(int& num) { \quad num = 0; \quad cout << num << endl; }

If a function is called more than once in a program, the values stored in the function's local variables do not _________ between function calls.

You must always furnish an argument with a function call.

It is not considered good programming practice to declare all your variables globally.

In the following function prototype, how many parameter variables does this function have? Int myFunction(double, double, double);

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

Local variables are initialized to zero by default.

A collection of statements that performs a specific task is a(n)

The value in this type of variable persists between function calls.

Functions are ideal for menu-driven programs. When the user selects a menu item, the program can __________ the appropriate function.

Select all that apply. Which of the following statement(s) about global variables is(are) true?

Given the following header for a function named computeValue, which of the following is a valid call to the function? Void computeValue(int value)

A function _________ eliminates the need to place a function definition before all calls to the function.

It is possible for a function to have some parameters with default arguments and some without.

This is a dummy function that is called instead of the actual function it represents:

Introduction to Computers and Programming

Introduction to C

Expressions and Interactivity

Making Decisions

Loops and Files

Arrays and Vectors

Searching and Sorting Arrays

Pointers

Characters, C-Strings, and More About the String Class

Structured Data

Advanced File Operations

Introduction to Classes

More About Classes

Inheritance, Polymorphism, and Virtual Functions

Exceptions and Templates

The Standard Template Library

Linked Lists

Stacks and Queues

Recursion

Binary Trees

Filters

What will the following code display? #include <iostream> using namespace std; void doSomething(int); int main() { $\quad$ int x = 2; $\quad$ cout << x << endl; $\quad$ doSomething(x); $\quad$ cout << x << endl; return 0; } void doSomething(int num) { $\quad$ num = 0; $\quad$ cout << num << endl; }

What will the following code display? #include <iostream> using namespace std; int getValue(int); int main() { $\quad$ int x = 2; $\quad$ cout << getValue(x) << endl; $\quad$ return 0; } int getValue(int num) { $\quad$ return num + 5; }

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