Question 1

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 2

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 3

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 4

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 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

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

Accepted Answer

A) True 
 B)False

Question 7

The heading of the function is also called the ____.

Accepted Answer

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

Question 8

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

Accepted Answer

A) True 
 B)False  True

Question 9

____________________ 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 10

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

Accepted Answer

A) True 
 B)False

Question 11

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 12

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 13

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 14

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 15

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

Accepted Answer

reference

Question 16

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

Accepted Answer

A) B) C) D)

Question 17

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 18

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

Accepted Answer

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

Question 19

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

Accepted Answer

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

Question 20

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) ;

Exam 6: User-Defined Function

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

Correct AnswerverifiedShow Answer

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

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

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

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

The heading of the function is also called the ____.

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedTrue

____________________ 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

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

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

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

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

Correct Answerverifiedreference

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

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

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

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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 test(float, char) ; Which of the following statements is valid?

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True

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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 ____.

Correct Answer
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reference

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A

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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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