Question 1

Functions that do not have a return type are called ____ functions.

Accepted Answer

A)   zero
B)   null
C)   void
D)   empty

Question 2

____________________ parameters are useful in three situations:• When the value of the actual parameter needs to be changed
• When you want to return more than one value from a function
• When passing the address would save memory space and time relative to copying a large amount of data

Accepted Answer

The answer of ____________________ parameters are useful in three situations:•...

Question 3

When you attach & after the dataType in the formal parameter list of a function, the variable following that dataType becomes a(n) ____________________ parameter.

Accepted Answer

The answer of When you attach & after the dataType...

Question 4

Assume that all variables are properly declared.The following statement in a value-returning function is legal.

Accepted Answer

A) True 
 B)False

Question 5

The output of the statement:cout << tolower('$')  << endl; is ____.

Accepted Answer

A)   '$'
B)   '0'
C)   '1'
D)   An error, because you cannot use tolower with '$'.

Question 6

The output of the statement: cout << pow(3.0, 2.0)  + 5 << endl; is ____.

Accepted Answer

A)   11.0
B)   12.0
C)   13.0
D)   14.0

Question 7

Assume the following. Static_cast('a') = 97 Static_cast('A') = 65 The output of the statement: Cout << static_cast(tolower('B') ) << endl; Is ____.

Accepted Answer

A)   65
B)   67
C)   96
D)   98

Question 8

The ____________________ of a function consists of the function name and its formal parameter list.

Accepted Answer

The answer of The ____________________ of a function consists of...

Question 9

The output of the statement:cout << pow(2.0, pow(3.0, 1.0) )  << endl; is ____.

Accepted Answer

A)   6.0
B)   7.0
C)   8.0
D)   9.0

Question 10

To use the predefined function tolower, the program must include the header file ____.

Accepted Answer

A) B) C) D)

Question 11

Which of the following function prototypes is valid?

Accepted Answer

A)   int funcExp(int x, float v) ;
B)   funcExp(int x, float v) {};
C)   funcExp(void) ;
D)   int funcExp(x) ; A

Question 12

The heading of the function is also called the ____.

Accepted Answer

A)   title
B)   function signature
C)   function head
D)   function header

Question 13

A variable or expression listed in a call to a function is called the ____.

Accepted Answer

A)   formal parameter
B)   actual parameter
C)   data type
D)   type of the function

Question 14

Using functions greatly enhances a program's readability because it reduces the complexity of the function main.

Accepted Answer

A) True 
 B)False

Question 15

Given the function prototype:​ double testAlpha(int u, char v, double t) ;
​
Which of the following statements is legal?

Accepted Answer

A)   cout 
B)   cout 
C)   cout 
D)   cout << testAlpha(5.0, "65", 2.0) ;

Question 16

The statement: return 2 * 3 + 1, 1 + 5; returns the value ____.

Accepted Answer

A)   2
B)   3
C)   6
D)   7

Question 17

Given the following function prototype:​ int myFunc(int, int) ;
​
Which of the following statements is valid? Assume that all variables are properly declared.

Accepted Answer

A) cin >> myFunc(y) ; B) cout C) cin >> myFunc('2', '3') ; D) cout << myFunc(myFunc(7) , 15) ;

Question 18

Given the following function prototype:​ int test(float, char) ;
​
Which of the following statements is valid?

Accepted Answer

A)   cout 
B)   cout 
C)   int u = test(5.0, '*') ;
D)   cout << test('12', '&') ;

Question 19

In C++, a function prototype is the function heading without the body of the function.

Accepted Answer

A) True 
 B)False  True

Question 20

Stream variables (for example, ifstream and ofstream) should be passed by ____________________ to a function.

Accepted Answer

reference

Exam 6: User-Defined Function

Functions that do not have a return type are called ____ functions.

Correct AnswerverifiedShow Answer

____________________ parameters are useful in three situations:• When the value of the actual parameter needs to be changed • When you want to return more than one value from a function • When passing the address would save memory space and time relative to copying a large amount of data

Correct AnswerverifiedShow Answer

When you attach & after the dataType in the formal parameter list of a function, the variable following that dataType becomes a(n) ____________________ parameter.

Correct AnswerverifiedShow Answer

Assume that all variables are properly declared.The following statement in a value-returning function is legal.

Correct AnswerverifiedShow Answer

The output of the statement:cout << tolower('$') << endl; is ____.

Correct AnswerverifiedShow Answer

The output of the statement: cout << pow(3.0, 2.0) + 5 << endl; is ____.

Correct AnswerverifiedShow Answer

Assume the following. ​ Static_cast<int>('a') = 97 Static_cast<int>('A') = 65 ​ The output of the statement:​ Cout << static_cast<int>(tolower('B') ) << endl; ​ Is ____.

Correct AnswerverifiedShow Answer

The ____________________ of a function consists of the function name and its formal parameter list.

Correct AnswerverifiedShow Answer

The output of the statement:cout << pow(2.0, pow(3.0, 1.0) ) << endl; is ____.

Correct AnswerverifiedShow Answer

To use the predefined function tolower, the program must include the header file ____.

Correct AnswerverifiedShow Answer

Which of the following function prototypes is valid?

Correct AnswerverifiedA

The heading of the function is also called the ____.

Correct AnswerverifiedShow Answer

A variable or expression listed in a call to a function is called the ____.

Correct AnswerverifiedShow Answer

Using functions greatly enhances a program's readability because it reduces the complexity of the function main.

Correct AnswerverifiedShow Answer

Given the function prototype:​ double testAlpha(int u, char v, double t) ; ​ Which of the following statements is legal?

Correct AnswerverifiedShow Answer

The statement: return 2 * 3 + 1, 1 + 5; returns the value ____.

Correct AnswerverifiedShow Answer

Given the following function prototype:​ int myFunc(int, int) ; ​ Which of the following statements is valid? Assume that all variables are properly declared.

Correct AnswerverifiedShow Answer

Given the following function prototype:​ int test(float, char) ; ​ Which of the following statements is valid?

Correct AnswerverifiedShow Answer

In C++, a function prototype is the function heading without the body of the function.

Correct AnswerverifiedTrue

Stream variables (for example, ifstream and ofstream) should be passed by ____________________ to a function.

Correct Answerverifiedreference

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Assume the following. Static_cast<int>('a') = 97 Static_cast<int>('A') = 65 The output of the statement: Cout << static_cast<int>(tolower('B') ) << endl; Is ____.

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Given the function prototype: double testAlpha(int u, char v, double t) ; Which of the following statements is legal?

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Given the following function prototype: int myFunc(int, int) ; Which of the following statements is valid? Assume that all variables are properly declared.

Correct Answer
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Given the following function prototype: int test(float, char) ; Which of the following statements is valid?

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reference