WGU D276: Web Development Foundations Exam Study Guide with complete solutions | Latest 2025/2026 Update.

WGU D276: Web Development Foundationsi,- i,- i,- i,- i,-




Exam Study Guide with complete solutions |
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Latest 2025/2026 Update. i,- i,-




HTML Living Standardi,- a continually evolving standard i,- i,-i,- i,- i,- i,- i,- i,-



without version numbers that replaces HTML5. Created by
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WHATWG


Separation of duties Over time, a move to separate
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document structure (HTML), document presentation (CSS), and
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webpage interaction with the user (JavaScript).
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Root Servers i,- i,-i,- i,- Thirteen main DNS servers that exist in the i,- i,- i,- i,- i,- i,- i,- i,-



world.


Top level domain
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HTML Hypertext Markup Language, a standardized system
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for tagging text files to achieve font, color, graphic, and hyperlink
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effects on World Wide Web pages.
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HTTP i,-i,- i,- HypterText Transfer Protocol i,- i,-

,World Wide Web Consortium (W3C)
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community that develops open standards for the Web. Created in
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1993


Web Hyptertext Application Technology Working Group
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(WHATWG) organization that develops a variety of web
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standards and whose members include the major browser
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vendors. 2019 i,-




ccTLD i,-i,- i,- country code .us .uk i,- i,- i,-




Query string Optional characters to the right of the question
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mark (?) in a URL that provide data for the web server.
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Fragment Optional characters at the end of a URL that with a
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hash character (#) and refer to a certain location within a
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webpage.


404 The status code that a web server returns to a browser
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when a requested webpage is not found.
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,Linkrot When content is removed from the web and the URLs
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that used to point to the content now return a 404 (not found)
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status code. i,-




TCP/IP Transmission Control Protocol / Internet Protocol, a
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protocol suite that governs how data packets are transferred over
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the Internet from one machine to another.
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HTTP Request i,- i,-i,- i,- A message sent from the web browser to the
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web server.
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HTTP Response i,- A message sent from the web server back to i,-i,- i,- i,- i,- i,- i,- i,- i,- i,- i,- i,-



the web browser in response to an HTTP request.
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Content-Length i,-i,- i,- Number of bytes in the HTTP response'si,- i,- i,- i,- i,- i,- i,-



message body. i,-




Content-Type i,-i,- i,- Media type of the HTTP response's message
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body


HTTP Server Identifies the web server software that
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generated the HTTP response. i,- i,- i,-

, HOST (http request)
i,- i,- i,-i,- i,- The domain name for the HTTP
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requested path. i,-




USER-AGENT (http request) i,- i,- i,-i,- i,- Identifies the browser making i,- i,- i,- i,-



the HTTP request.
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IANA a standards organization that manages various internet
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numbers and symbols, like global IP address allocation, root zone
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management, and media types. i,- i,- i,-




ETag Entity Tag, an identifier for a specific version of a web
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resource.


Affordances Visual clues that guide the user in figuring out
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how to use an app.
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Separation of Concerns The design principle of breaking up
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web content using distinct languages and documents that
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overlap as little as possible.
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HTML Element i,- i,-i,- i,- A single HTML structure that is represented
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with HTML tags.
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