Deck 2: C++ Function and Array

Question 1

When arguments are passed by value, the function works with the original arguments in the calling program.

Answer 1

False

Question 2

Which of the following can legitimately be passed to a function?

A)a constant
B)a variable
C)a structure
D)all of the above

Answer 2

all of the above

Question 3

How many values can be returned from a function?

A)0
B)1
C)2
D)3

Answer 3

1

Question 4

When a function returns a value, the entire function call can appear on the right side of the equal sign and be assigned to another variable.

Question 5

When an argument is passed by reference

A)a variable is created in the function to hold the argument's value.
B)the function cannot access the argument's value.
C)a temporary variable is created in the calling program to hold the argument's value.
D)the function accesses the argument's original value in the calling program.

Question 6

Overloaded functions

A)are a group of functions with the same name.
B)all have the same number and types of arguments.
C)make life simpler for programmers.
D)a and c

Question 7

A static local variable is used to

A)make a variable visible to several functions.
B)make a variable visible to only one function.
C)retain a value when a function is not executing.
D)b and c

Question 8

In C++ there can be an array of four dimensions.

Question 9

When an array name is passed to a function, the function

A)accesses exactly the same array as the calling program.
B)refers to the array using a different name than that used by the calling program.
C)refers to the array using the same name as that used by the calling program.
D)a and b

Question 10

The compiler will complain if you try to access array element 14 in a 10-element array.

Question 11

The extraction operator (>>) stops reading a string when it encounters a space.

Question 12

You can read input that consists of multiple lines of text using

A)the normal cout <<combination.
B)the cin.get() function with one argument.
C)the cin.get() function with two arguments.
D)the cin.get() function with three arguments.

Question 13

You should prefer C-strings to the Standard C++ string class in new programs.

Question 14

Objects of the string class

A)are zero-terminated.
B)can be copied with the assignment operator.
C)do not require memory management.
D)both b and c

Question 15

Can destuctors be private in C++?

Question 16

What is value of size?

A)28
B)32
C)20
D)24

Question 17

What value will be printed for data.i?

A)10 220.5 230.5 unpredictable value
B)220
C)230.5
D)unpredictable value

Question 18

What is the compilation error for this program?

A)each undeclared identifier is reported only once
B)cout and cin not declared in scope
C)invalid conversion from int to float
D)all of the above

Question 19

What will be the output of the program?

A)1
B)default value
C)will not compile
D)none of the above

Question 20

What is the output of the program?

A)0 0
B)x = 0 y = 0
C)0
D)compilation error

Question 21

Which function will change the state of the object?

A)only set()
B)only display()
C)display() and set() both
D)none of the above

Question 22

What will be the output of the following program?

A)compilation error: display() cannot be accessed in application
B)compilation error:test class object cannot be accessed in function demo
C)compilation error: variable x is private in test
D)both a and b

Question 23

The only integer that can be assigned directly to a pointer is                    

A)0
B)-1
C)999
D)-999

Question 24

Which of the following feature is not supported by C++?

A)exception handling
B)reflection
C)operator overloading
D)namespace

Question 25

The operators that cannot be overloaded is

A)*
B)-
C)::
D)()