Scripting Languages in Web Development

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Questions and Answers

What is the purpose of a script in a movie or a play?

  • To provide instructions for the web browser
  • To write applications from scratch
  • To combine the functionality of other programs
  • To provide a list of actions for the actors to perform (correct)

What do scripting languages assume exist in other languages?

  • System programming languages
  • A collection of useful components (correct)
  • Useful algorithms
  • Dynamic web content

What allows scripting languages to act as an intermediary between programs?

  • Their ability to combine components (correct)
  • Their ability to execute machine instructions
  • Their ability to provide quick programming
  • Their ability to write applications from scratch

What is an application of scripting languages in web development?

<p>Developing interactive web pages (B)</p>
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What is a characteristic of scripting languages?

<p>They are used for quick programming (C)</p>
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What is another name for scripting languages?

<p>System integration languages (D)</p>
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When should a scripting language be used over a system programming language?

<p>When connecting preexisting components (B)</p>
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What enables web browsers to extend the capabilities of static websites?

<p>Scripting languages (C)</p>
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What is a key difference between Python and other scripting languages?

<p>It combines compilation and interpretation (B)</p>
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What is PHP commonly used for?

<p>Web development and general-purpose programming (A)</p>
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What is a key feature of JavaScript?

<p>It can run on any platform with a JavaScript interpreter (A)</p>
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What is AppleScript primarily used for?

<p>Sending commands to the operating system (D)</p>
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What is a key feature of VBScript?

<p>It is a cut-down version of Visual Basic (C)</p>
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What is a common use case for Python?

<p>System administration and file sharing (A)</p>
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What is a key feature of PHP?

<p>It is a server-side scripting language (A)</p>
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What is JavaScript often used for?

<p>Enhancing web page functionality and interactivity (A)</p>
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What is the primary function of client-side scripting languages?

<p>To add functionality to web pages, such as different menu styles, graphic displays, or dynamic advertisements (C)</p>
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What happens when a user's browser does not have a scripting language enabled?

<p>A message usually pops up to alert the user when a script is attempting to run (D)</p>
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What is the main difference between client-side and server-side scripting languages?

<p>The location where the script is executed (D)</p>
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What is the purpose of a Java virtual machine in a web browser?

<p>To support the execution of applets (D)</p>
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What is the primary advantage of server-side scripting languages?

<p>The ability to highly customize the response based on the user's requirements (C)</p>
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What is the typical environment where client-side scripting languages are run?

<p>A browser (D)</p>
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What is the purpose of a script in a web page?

<p>To provide interactive features to web pages (B)</p>
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What is the relationship between a client's browser and a web server in client-side scripting languages?

<p>The web server sends the script to the client's browser to be executed (A)</p>
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What is a disadvantage of using CGI scripts?

<p>The web server must launch each script as a separate program. (B)</p>
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What is a result of dynamic typing in scripting languages?

<p>Type mismatches can occur when a variable is assigned a type that is not expected. (D)</p>
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What is a characteristic of Microsoft's scripting interface?

<p>It is implemented uniformly by the operating system, the web server, and the Internet Explorer browser. (A)</p>
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What comes pre-installed on Windows machines?

<p>A Windows Script implementation of JScript. (D)</p>
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What is a limitation of CGI scripts regarding their location?

<p>They can be installed only in trusted directories. (A)</p>
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What extra task must each CGI script perform?

<p>Generating not only dynamic content, but also the HTML tags that are needed to format and display it. (C)</p>
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Why do CGI scripts appear different to end users?

<p>Because the name of the script appears in the URI, typically prefixed with the name of the trusted directory. (D)</p>
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What is the main idea behind the Principle of Succinctness?

<p>To minimize effort and time in programming (A)</p>
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What is a characteristic of Ruby as an object-oriented language?

<p>Everything is an object, including classes (A)</p>
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What is the purpose of mixins in Ruby?

<p>To provide a way to add behaviors to a class (A)</p>
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What is a module in Ruby?

<p>A degenerate abstract class that can't be instantiated (B)</p>
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What is a criticism of Ruby's syntax?

<p>It blurs the line between names of variables, classes, and methods (C)</p>
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What is an example of a side effect in Ruby?

<p>The <code>gets</code> method changes the global variable <code>$</code> (A)</p>
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What is a benefit of using Ruby?

<p>Common needs are built-in (A)</p>
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What is a characteristic of reflection in Ruby?

<p>It is built-in along with other dynamic metadata features (C)</p>
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