1. Arrays are always indexed starting at subscript _____ .

   • 0
   • 1
   • "start"
   • "begin"

2. How many integers can the array named numbers contain? int numbers[10]

   • 11 (got it wrong the first time... thought it was 11)
   • 9
   • 10
   • 0

3. Which of the following is a legal array definiton in C++?

   • int numbers[0];
   • double 5numbers[5];
   • real numbers[5];
   • float numbers[10];

4. C++ treats an array name as:

   • all of the array elements
   • a variable
   • the location in memory of first array element
   • the first array element

5. All array elements must be:

   • enclosed in square brackets []
   • constants
   • literals
   • of the same type

6. Given the following array declaration, how would you display 100.7 from the array? double temperatures[] = {98.6, 95.2, 88.7, 100.7, 89.0};

   • cout << temperatures[4] << endl;
   • cout << 100.7 << endl;
   • cout << temps[3] << endl;
   • cout << temperatures[3] << endl;

7. Given the following array declaration, what would the following code display?

double temperatures[] = {98.6, 95.2, 88.7, 100.7, 89.0};
cout << temperatures[5] << endl;

- [x] garbage data
- [ ] 89.0
- [ ] it won't compile
- [ ] it will generate an "out of range error"

*I got this one wrong!! I thought it was either "it won't compile" or "it will generate an 'out of range error'"...*

8. How would you define a vector named temperatures that contains doubles?

   • vector temperatures;
   • vector double temperatures;
   • vector [double] temperatures;
   • double vector temperatures

9. How would you determine the number of elements contained in a vector named temperatures?

   • length(temperatures);
   • tmeperatures.length();
   • temperatures.size();
   • temperatures.num_elements();

10. What is one way that vectors and arrays are different?

    • vectors always more efficient than arrays
    • arrays can only store primitive types
    • vectors can vary their capacity as the program runs, but arrays are fixed in size
    • vectors elements cannot be accessed using their subscript