The accompanying figure illustrates the screen that appears when you type "word" in the text box. Which of the following is the title of this screen that is missing in this picture?

What is a caching-only DNS server?

A. It is a DNS server with only a forward-zone. B. It is a DNS server with only a reverse-zone. C. It is a DNS server with only a stub zone. D. It is a DNS server with no zones whatsoever.

What does the following program do?

``` // Ex07_17.cpp // What does this program do? #include #include using namespace std; const size_t arraySize{10}; int whatIsThis(const array&, size_t); // prototype int main() { array a{1, 2, 3, 4, 5, 6, 7, 8, 9, 10}; int result{whatIsThis(a, arraySize)}; cout << "Result is " << result << endl; } // What does this function do? int whatIsThis(const array& b, size_t size) { if (size == 1) { // base case return b[0]; } else { // recursive step return b[size - 1] + whatIsThis(b, size - 1); } } ```