DCA3101 Web Design

Description

SESSION	APRIL 2025
PROGRAM	BACHELOR OF COMPUTER APPLICATIONS (BCA)
SEMESTER	V
COURSE CODE & NAME	DCA3101 WEB DESIGN

 

 

SET-I

 

Q1. Explain the core distinction between the Internet and the World Wide Web, highlighting their respective roles in digital communication and information sharing. How do their underlying technologies differ, and why is it important to understand this difference when discussing online systems and web development? 5+5     

Ans 1.

Core Distinction Between the Internet and the World Wide Web

Internet

The Internet is a vast, global network that connects millions of computers and devices using standardized communication protocols. It is the foundational infrastructure that enables various digital services such as email, file transfer, social media, online gaming, and the World Wide Web. The Internet operates using protocols such as Transmission Control Protocol (TCP) and Internet Protocol (IP), which define how data is packaged, addressed, transmitted, routed, and received.

World Wide

 

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Q2. Identify and explain any three essential services offered by the Internet (e.g., email, file transfer, remote access, web browsing, etc.), and discuss how each contributes to global connectivity and communication. Additionally, describe a common cybersecurity threat—such as phishing, malware, or DDoS attacks—and explain its potential impact on users and systems. 5+5     

Ans 2.

Internet Services and Cybersecurity Threats

The Internet offers a multitude of services that play a crucial role in global communication, data sharing, and productivity. Among the most impactful services are email, file transfer, and remote access. These services facilitate real-time collaboration, long-distance communication, and data mobility. Each service is built upon Internet protocols that standardize how data is exchanged between users and

 

 

 

Q3. Define the concept and structure of a Uniform Resource Identifier (URI) in the context of HTML. Explain its significance in linking resources on the web. How is a URI embedded within anchor (<a>) tags to form functional hyperlinks? Also, discuss the role of relative and absolute URIs and best practices for using them effectively in web development.          5+5    

Ans 3.

Uniform Resource Identifier (URI) in HTML

URI

A Uniform Resource Identifier (URI) is a string used to identify a resource on the Internet. URIs are the building blocks of web connectivity, enabling users and applications to access files, webpages, and other digital resources. A typical URI includes components like the scheme (http, https), the domain (e.g., www.example.com), and the path to the specific resource (e.g., /about.html). URIs are essential in the functioning of web

 

SET-II

 

4. Describe the correct method to embed an image in an HTML document using the <img> tag, including important attributes such as src, alt, width, and height. Why is the alt attribute crucial for accessibility and SEO? In addition, explain the purpose and usage of the <address> tag in HTML. What kind of content should it contain, and how does it contribute to semantic HTML and accessibility? 4+3+3

Ans 4.

Embedding Images and the Role of <img> and <address> Tags in HTML

Embedding an Image with the <img> Tag

The <img> tag in HTML is used to embed images into a webpage. Unlike other tags, <img> is self-closing and does not have a closing tag. The most important attribute of the <img> tag is src, which stands for “source”. It defines the path to the image file. The basic syntax is:
<img src=”image.jpg” alt=”Image Description” width=”300″ height=”200″>

Here, src can be a relative path (e.g., images/logo.png) or an absolute URL (e.g., https://example.com/logo.png). The width and height attributes are used to define the dimensions of the image in pixels

 

Q5. List and explain the key structural components of a standard HTML web page, including <html>, <head>, <title>, and <body> tags. Why is it important to include each of these elements in your document? 5+5           

Ans 5.

Key Structural Components of a Standard HTML Web Page

Role of the <html> Tag

The <html> tag is the root element of every HTML document. It encapsulates all other HTML elements and tells the browser that the content within is an HTML document. Everything from the <head> to the <body> is nested within the <html> tag. Without this tag, the browser might not interpret the document correctly, leading to unpredictable results.

Purpose of the <

 

Q6. Discuss the primary benefits of using Cascading Style Sheets (CSS) in web design, particularly in terms of enhancing visual presentation and maintaining consistency across multiple pages. How does CSS promote the principle of separating structure (HTML content) from style (design and layout)? 5+5           

Ans 6.

Benefits of CSS and Separation of Structure and Style

CSS in Web Design

Cascading Style Sheets (CSS) is a stylesheet language used to control the appearance of HTML content. It defines how HTML elements are displayed on screen, paper, or in other media. CSS allows web designers to style multiple elements consistently and efficiently, ensuring that the design is visually appealing and easy to update.

Enhancing Visual