Question 1

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

Accepted Answer

A) True 
 B)False  True

Question 2

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

Question 3

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

Accepted Answer

reference

Question 4

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

Question 5

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

Accepted Answer

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

Question 6

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

Accepted Answer

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

Question 7

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

Question 8

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

Accepted Answer

A) True 
 B)False

Question 9

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

Accepted Answer

A) B) C) D) A) B) C) D)

Question 10

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

Question 11

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

Accepted Answer

A) True 
 B)False

Question 12

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

Accepted Answer

A)  cout << testAlpha(5, 'A', 2); 
B)  cout << testAlpha( int 5, char 'A', int 2); 
C)  cout << testAlpha('5.0', 'A', '2.0'); 
D)  cout << testAlpha(5.0, "65", 2.0); 
A)  cout << testAlpha(5, 'A', 2); 
B)  cout << testAlpha( int 5, char 'A', int 2); 
C)  cout << testAlpha('5.0', 'A', '2.0'); 
D)  cout << testAlpha(5.0, "65", 2.0);

Question 13

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 14

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

Accepted Answer

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

Question 15

____________________ 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 16

The heading of the function is also called the ____.

Accepted Answer

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

Question 17

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 18

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

Question 19

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

Question 20

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

Accepted Answer

A)  cout << test(12, &); 
B)  cout << test("12.0", '&'); 
C)  int u = test(5.0, '*'); 
D)  cout << test('12', '&'); 
A)  cout << test(12, &); 
B)  cout << test("12.0", '&'); 
C)  int u = test(5.0, '*'); 
D)  cout << test('12', '&');

Exam 6: User-Defined Function

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

Which of the following function prototypes is valid?

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

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 ____.

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

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

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

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

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

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

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

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

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

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

____________________ 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

The heading of the function is also called the ____.

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

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

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

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

An Overview of Computers and Programming Languages

Basic Elements of C++

Inputoutput

Control Structures I Selection

Control Structures Ii Repetition

Namespaces, the Class String, and User-Defined Simple Data Types

Arrays

Records Structs

Classes and Data Abstraction

Inheritance and Composition

Pointers, Classes, Virtual Functions, and Abstract Classes

Operator Overloading and Templates

Exception Handling

Recursion

Linked Lists

Stacks and Queue

Searching and Sorting Algorithms

Binary Trees

Graph Algorithms

Standard Template Library

Filters

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 ____.

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

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

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