Research the functionality of the three layers (presentation, domain, and data source) of enterprise application software. Write a paper describing each layer in detail as it would apply to a specific type of enterprise application software (you select the specific type of software to use in your examples, be consistent and use the same type of enterprise application software through your entire paper). Be sure to introduce the type of enterprise application software you have selected to use as an example. Point out areas that could be problematic in the development cycle for the specific example that you have selected as well as solutions that you deem appropriate.

1. ask the user how many questions are in the quiz. 2. ask the user to enter the key (that is, the correct answers). there should be one answer for each question in the quiz, and each answer should be an integer. e. g., 34 7 13 100 81 3 9 10 321 12 might be the key for a 10-question quiz. you will need to store the key in an array. 3. ask the user to enter the answers for the quiz to be graded. there needs to be one answer for each question. note that these answers do not need to be stored; each answer can simply be compared to the key as it is entered. 4. when the user has entered all of the answers to be graded, print the number correct and the percent correct. 5. add a loop so that the user can grade any number of quizzes with a single key. after the results have been printed for each quiz, ask "grade another quiz? (y/n)." note: you only have one array (the key). you are not creating a new key for each set of quiz answers.