What best describes the Presentation Tier that we will be using in this class? A Ruby on Rails B HTML, CSS, and JavaScript HTML, CSS, and Java D PHP Which of the following is FALSE relating to Data Mappers in an MVC model? A Data Mapper save time when mapping object oriented data to relational data in a database. B Data Mappers work well when creating SOA functions. Data Mappers work well in a shared database which is accessed by many different applications. 0 It can be a challenge to rollback database changes that have been implemented using a Data Mapper. Assuming ">" means "relies on", which statement is NOT correct? A TCP > DNS B DNS > IP All the above are correct D HTTP> TCP > IP Which form of tests is most likely to help with validation? A unit B integration C acceptance D module