Computer Science and C++ Quiz Answers, Page 4

Question #31

Will a C compiler always compile C++ code?

Yes.
No.
Only optimized compilers will compile C++ code.

Question #32

Which of the following is not a valid keyword:

public
protected
guarded

Question #33

What is the correct syntax for inheritance?

class aclass : public superclass
class aclass inherit superclass
class aclass <-superclass

Question #34

What does the following code snippet do: for(;;) ;

The snippet is illegal
It loops forever
It is ignored by compiler, but it is not illegal

Question #35

Of the numbers 12, 23, 9, and 28, which one would be at the top of a properly implemented maxheap?

28
9
Any of them could be

Question #36

What does the line containing "break;" do in the following code?
void afunction()
{
if(1)
{
break;
a_function();
cout<<"Err";
}
}

Breaks out of the if statement
Exits the function
Nothing (Compiler error)

Question #37

To what value are pointers initialized?

NULL
Newly allocated memory
No action is taken by the compiler to initialize pointers.

Question #38

What is the last index number in an array of 100 chars?

100
99
101

Question #39

Would you rather wait for the results of a quicksort, a linear search, or a bubble sort on a 200000 element array?

Quicksort
Linear Search
Bubble Sort

Question #40

Which of the following data structures uses the least memory?

struct astruct
{
  int x;
  float y;
  int v;
};

union aunion { int x; float v; };

char array[10];

Next Answers