DCA7106 JULY SEPTEMBER 2025

Description

SESSION	JULY/SEPTEMBER 2025
PROGRAM	MASTER OF COMPUTER APPLICATIONS (MCA)
SEMESTER	3
COURSE CODE & NAME	DCA7106

 

 

Set-I

 

 

Q1. Differentiate between an HTML element and an HTML tag. 10     

Ans 1.

Difference Between an HTML Element and an HTML Tag

HTML forms the structural foundation of web pages. Every component displayed on a webpage—text, image, link, heading, or form field—is created using HTML. To understand HTML deeply, one must clearly distinguish between an HTML tag and an HTML element, because although they seem similar, they refer to different concepts within the markup language. Their correct usage affects how a browser interprets structure, meaning, and presentation.

HTML Tag

An HTML tag is a specific piece of syntactic markup enclosed within angle brackets < >. Tags ‘

 

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Q2. Explain different types of operators and conditional statements used in JavaScript. 10   

Ans 2.

Operators and Conditional Statements in JavaScript

JavaScript is a flexible scripting language used extensively for web development. Core to its behavior are operators—symbols used to perform operations on values—and conditional statements, which allow dynamic decision-making. Together, they enable the creation of interactive, responsive scripts that adapt to user input and browser conditions.

Types of Operators in JavaScript

JavaScript supports a wide range of operators that perform mathematical, logical, assignment,

 

 

Q3. What are element node, an attribute node, and a text node in the DOM?   10       

Ans 3.

Element Node, Attribute Node, and Text Node in the DOM

The Document Object Model (DOM) is a structured tree representation of an HTML or XML document. It breaks the page into nodes—each representing a component of the document. Understanding node types such as element nodes, attribute nodes, and text nodes is essential for dynamic webpage manipulation, scripting, and UI interaction.

Element Node

An element node represents an actual HTML element in the DOM, such as <div>, <p>, <a>, or <img>. When a browser parses HTML, each element becomes a node, forming the primary structure of the DOM tree. An element node can contain attributes, child elements, and text nodes. It serves as the container for everything nested inside it. JavaScript frequently interacts

 

Set-II

 

Q4. Explain the purpose of the CSS Box Model in web design, and what are its main components? 10        

Ans 4.

Purpose of the CSS Box Model and Its Main Components

The CSS Box Model is one of the most fundamental concepts in web design, forming the basis of how elements are rendered and how layouts are structured in a webpage. Every element in HTML, whether visible or invisible, is treated as a rectangular box. Understanding the CSS Box Model is essential because it controls spacing, alignment, sizing, and the overall flow of content on a webpage. Without mastering the box model, achieving consistent layouts across browsers becomes challenging, especially when dealing with responsive design or complex UI

 

Q5. Discuss the structure of a MongoDB document. How does it differ from a row in an SQL table? 10     

Ans 5.

Structure of a MongoDB Document and Its Difference from an SQL Table Row

MongoDB is a NoSQL, document-oriented database that stores data in flexible JSON-like structures. Its fundamental storage unit is the document, which provides a schema-less format allowing complex, nested data. To understand MongoDB’s strengths, it is essential to compare the structure of a document with a traditional SQL table row, because both represent a single data record but in fundamentally different ways.

Structure of a MongoDB Document

A MongoDB document is stored in BSON (Binary JSON) format, which supports rich data

 

 

Q6. What is a Content Management System (CMS)? Differentiate between open-source and proprietary CMS platforms.       10       

Ans 6.

Content Management System (CMS) and Open-Source vs Proprietary CMS

A Content Management System (CMS) is a software platform that allows users to create, manage, publish, and update digital content without requiring deep technical expertise. CMS platforms are widely used for websites, blogs, e-commerce stores, company portals, and knowledge bases. They simplify content workflows, allowing individuals or teams to collaborate, maintain consistency, and control the overall structure and appearance of a website.

What Is a CMS?

A CMS provides tools for writing, editing, organizing, and publishing content. Most CMS