Which programming language uses the keyword sub to indicate that a section of code is a function? Which programming language uses the keyword sub to indicate that a section of code is a function? JavaScript Perl Ruby Python
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Which of the following statements about programming languages is true? Programming languages are natural languages. Programming languages are fluid and use dynamic syntax. Programming languages do not use tokens. Programming languages are used to write instructions that can be interpreted by computers. Which of the following statements about web applications is true? Web applications are always built using JavaScript. Web applications are cross-platform applications by default. Web applications do not need to compensate for visual or functional disparities when run on different browsers. Web applications do not require a connection to the Internet to run. Which of the following is NOT an example of an HTTP request/response conversation? A user enters their login credentials and is directed to their personalized home page. A user initiates a Google search and results are returned. A user types a URL into their browser and a web page is loaded. A user creates a text document and saves it to their computer. 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. The second tab displays the new page, then runs its HTML. New HTML, CSS, and JavaScript are executed in the second tab when it is opened. The second tab compiles the new page's JavaScript before loading. A user logs into a banking website and clicks on a button to view their balances. Which layer(s) of the web application are being used when the user hits the button? The presentation layer The presentation and data layers The logic and data layers The presentation, logic, and data layers Which of the following actions would JavaScript be responsible for performing on a web page? Retrieving information from the data layer to send to the front end. Building data sets to provide to other pages. Structuring content for a computer to interpret and present to users. Running programs when a user interacts with the page.
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