SOPHIA INTRODUCTION TO WEB DEVELOPMENT

SOPHIA INTRODUCTION TO WEB DEVELOPMENT. 6 questions were answered correctly. 1 In a conversation between two computers, the is the one that initiates the HTTP request, and the is the one that provides HTTP responses. RATIONALE When two computers communicate, the one that initiates the connection is known as the client, and the one that responds is known as the server. CONCEPT Web Development 2 Which of the following would a software engineer be expected to do? RATIONALE Software engineers frequently perform all of these responsibilities - writing business requirements, collaborating with others, reading documentation, and writing code. CONCEPT Program Languages and Computers 3 A web application that runs regardless of which browser it is loaded in would be considered a application. RATIONALE Cross-platform applications are ones that do not need to be written specifically for the technology they run on, but rather can run on multiple or all platforms. For a web application, this means still running whether you opened it in Internet Explorer, Chrome, Safari, etc. CONCEPT Web Applications vs. Traditional Applications 4 The architectural layer responsible for displaying web pages to the user and accepting user input is known as the tier. RATIONALE As the name suggests, the presentation tier is responsible for all the elements of the web application that users directly interact with: the images displayed on the page, any buttons or menus, everything that a user sees is part of the presentation layer. CONCEPT Modern Web Application Architecture 5 Which of the following actions would JavaScript be responsible for performing on a web page? RATIONALE While JavaScript is used to call APIs to retrieve information from the data layer, it does not directly interact with the data layer itself. JavaScript is primarily responsible for executing code that is initiated by and directly impacts the user. CONCEPT Programming for the Web 6 A developer is reading an article on a web page and sees a hyperlink to another page. They decide to open the link in a new tab of her browser. Which of the following is true about this process? • The JavaScript from the first tab is shared with the second tab via the hyperlink. RATIONALE As code is not shared between browser tabs, when the second tab is opened, it must run the page’s new HTML, CSS, and JavaScript before anything can be displayed on the page, interpreting the JavaScript code on the fly rather than compiling it beforehand.