Question

. C++

11.A statement that displays the address of the variable num1 is

Question 11 options:

	a) cout << &num1;
	b) cout << *num1;
	c) cout << num1;
	d) cout << &(*num1);

12.The statement int *ptr = new int; acquires memory to hold an integer and then

Question 12 options:

	a) sets ptr to point to the allocated memory.
	b) assigns an integer value to the variable called ptr.
	c) initializes the allocated memory to 0.
	d) creates a new pointer called int.

A reason for passing a pointer to a function is

13.Question 13 options:

	a) to avoid the overhead of copying large data structures.
	b) to allow the called function to modify a variable accessible to the calling function.
	c) to allow easy access to data in the function that is being called.
	d) A and B are both true.

15.Object composition is useful for creating a ________ relationship between classes.

Question 15 options:

	a) conditional
	b) friend
	c) has-a
	d) static

16.An array of characters ending with the null terminator is called

Question 16 options:

	a) a string literal.
	b) a C++ String
	c) a C-string.
	d) a string class object.

17.Function templates allow you to create one general version of a function without having to

Question 17 options:

	a) use member functions.
	b) duplicate code to handle multiple data types.
	c) write any code.
	d) use private members.

18.The operation of moving to a particular location in an input file is accomplished through

Question 18 options:

	a) the locate member function.
	b) the seekp member function.
	c) the seekg member function.
	d) the move member function.

19.When used by itself, ________ causes a file's contents to be deleted if the file already exists.

Question 19 options:

	a) ios:app
	b) ios::in
	c) ios::out
	d) All of the above

20.The ________ function can be used to store binary data to a file.

Question 20 options:

	a) binary.out
	b) write
	c) dataout(binary)
	d) put

Answer 1

11) cout << &num1;
12) sets ptr to point to the allocated memory.
13) A and B are both true.
15) has-a
16) a C-string.
17) duplicate code to handle multiple data types.
18) the seekg member function.
19) ios::out
20) write