USER-DEFINED FUNCTIONS

Question 1

To use a predefined function in a program, you need to know only the name of the function and how to use it.

Answer 1

False

Question 2

A value-returning function returns only one value.

Answer 2

True

Question 3

Parameters allow you to use different values each time the function is called.

Answer 3

True

Question 4

When a return statement executes in a user-defined function, the function immediately exits.

Answer 4

True

Question 5

A value-returning function returns only integer values.

Answer 5

False

Question 6

When a return statement executes in a user-defined function, the function immediately exits.

Answer 6

True

Question 7

A value-returning function returns only integer values.

Answer 7

False

Question 8

A variable name cannot be passed to a value parameter

Answer 8

False

Question 9

If a C++ function does not use parameters, parentheses around the empty parameter list are still required.

Answer 9

True

Question 10

In C++, the names of the corresponding formal and actual parameters must be the same.

Answer 10

False

Question 11

A function that changes the value of a reference parameter also changes the value of the actual parameter

Answer 11

True

Question 12

Whenever the value of a reference parameter changes, the value of the actual parameter changes.

Answer 12

True

Question 13

In C++, function definitions can be nested; that is, the definition of one function can be enclosed in the body of another function.

Answer 13

False

Question 14

Using global variables in a program is a better programming style than using local variables, because extra variables can be avoided.

Answer 14

False

Question 15

In a program, global constants are as dangerous as global variables.

Answer 15

False

Question 16

The memory for a static variable remains allocated between function calls.

Answer 16

True

Question 17

The following is a valid C++ enumeration type:

enum romanNumerals {I, V, X, L, C, D, M}

Answer 17

True

Question 18

Given the declaration: enum cars {FORD, GM, TOYOTA, HONDA}; cars domesticCars = FORD;
the statement: domesticCars = domesticCars + 1; sets the value of domesticCars to GM

Answer 18

False

Question 19

The values in the domain of an enumeration type are called enumerators.

Answer 19

True

Question 20

The only arithmetic operations allowed on the enumeration type are increment and decrement.

Answer 20

False

Question 21

You can input the value of an enumeration type directly from a standard input device

Answer 21

False

Question 22

A function can return a value of an enumeration type.

Answer 22

True

Question 23

The following are legal C++ statements in the same block of a C++ program:
enum mathStudent {BILL, JOHN, LISA, RON, CINDY, SHELLY};
enum historyStudent {AMANDA, BOB, JACK, TOM, SUSAN};

Answer 23

True

Question 24

The following statement creates an anonymous type: enum {A, B, C, D, F} studentGrade;

Answer 24

True

Question 25

A double type is an example of a simple data type.

Answer 25

True

Question 26

A one-dimensional array is an example of a structured data type

Answer 26

True

Question 27

Arrays can be passed as parameters to a function either by value or by
reference

Answer 27

False

Question 28

A function can return a value of type array

Answer 28

True

Question 29

A function can return a value of type array

Answer 29

True

Question 30

If an array index goes out of bounds, the program always terminates in an
error

Answer 30

False

Question 31

In C++, some aggregate operations are allowed for strings.

Answer 31

True

Question 32

As parameters, two-dimensional arrays are passed either by value or by reference.

Answer 32

False

Question 33

The declaration:
char str = “Sunny Day”;
declares str to be a string of an unspecified length.

Answer 33

False