Web Development Layers
Muhtasari
Every web page you visit is built from three separate layers that do three different jobs: one holds the content, one decides how it looks, and one makes it react. Pulling these apart is one of the most important ideas in modern web development, because it lets a designer restyle a whole site without touching a word of its text, and lets a writer change the text without breaking the design.
In this lesson you will learn the purpose of each layer: the content layer written in HTML, the presentation layer written in CSS, and the behaviour layer written in a scripting language such as JavaScript. You will see why keeping them in separate files matters and how the three fit together to make a single page. This is the foundation that the rest of website authoring is built on.
Malengo
- The three web development layers.
- Content layer is used to enter the content and create the structure of a web page Presentation layer is used to display and format elements within a web page Behaviour layer is for a scripting language to control elements within a web page.
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Tathmini ya Somo
Hongera kwa kukamilisha somo la Web Development Layers. Sasa kwa kuwa umechunguza dhana na mawazo muhimu, ni wakati wa kuweka ujuzi wako kwa mtihani. Sehemu hii inatoa mazoezi mbalimbali maswali yaliyoundwa ili kuimarisha uelewaji wako na kukusaidia kupima ufahamu wako wa nyenzo.
Utakutana na mchanganyiko wa aina mbalimbali za maswali, ikiwemo maswali ya kuchagua jibu sahihi, maswali ya majibu mafupi, na maswali ya insha. Kila swali limebuniwa kwa umakini ili kupima vipengele tofauti vya maarifa yako na ujuzi wa kufikiri kwa makini.
Tumia sehemu hii ya tathmini kama fursa ya kuimarisha uelewa wako wa mada na kubaini maeneo yoyote ambapo unaweza kuhitaji kusoma zaidi. Usikatishwe tamaa na changamoto zozote utakazokutana nazo; badala yake, zitazame kama fursa za kukua na kuboresha.
- Which language is used to create the content layer of a web page? A. CSS B. JavaScript C. HTML D. SQL Answer: C
- The presentation layer of a web page is responsible for: A. The text and images B. The colours, fonts and layout C. Reacting to button clicks D. Storing data Answer: B
- Which layer makes a web page interactive, for example validating a form? A. Content layer B. Presentation layer C. Behaviour layer D. Storage layer Answer: C
- CSS is an abbreviation for: A. Computer Style System B. Cascading Style Sheets C. Central Styling Service D. Coded Style Syntax Answer: B
- A main benefit of keeping styles in a separate CSS file is that: A. The page loads no images B. One change restyles many pages at once C. HTML becomes a programming language D. JavaScript is not needed Answer: B
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Vitabu Vinavyopendekezwa
Fanya Mazoezi ya Maswali ya Majaribio
Ungependa kufanya mazoezi ya maswali ya majaribio kuhusu Web Development Layers? Pakua programu ya Green Bridge CBT ili kupata maswali ya majaribio na tathmini kamili za mazoezi kuhusu mada hii.
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