(SEM V) THEORY EXAMINATION 2024-25 WEB TECHNOLOGY

Subject Code: BCS502
Maximum Marks: 70
Time: 3 Hours
Paper ID: 310466

Question Paper Overview

SECTION A (2 × 7 = 14 Marks)

(Short conceptual questions — fundamental web technology basics)

a. Define web development strategies.
b. What is client-server computing?
c. What is the use of margin properties in CSS?
d. What is the difference between ID and Class in CSS?
e. What is AJAX, and why is it used?
f. What is a JavaBean?
g. What are the methods of the Servlet interface?

SECTION B (Attempt any three × 7 = 21 Marks)

a. Write a detailed note on web development strategies.
b. Discuss the significance of padding, margin, and border properties in CSS.
c. Explain the Factory Methods in networking with examples.
d. Discuss the differences between Stateful and Stateless Session Beans.
e. Describe the process of handling HTTP POST requests in Servlets.

SECTION C (Attempt one part from each question × 7 = 35 Marks)

Q3

(a) Describe the steps involved in writing a web project.
OR
(b) Explain the significance of connecting to the internet for web development.

Q4

(a) Write a detailed note on CSS pseudo-classes and pseudo-elements.
OR
(b) Discuss CSS properties for controlling fonts and their significance.

Q5

(a) Explain the structure and purpose of URLs in networking.
OR
(b) Discuss the importance of InetAddress in Java networking.

Q6

(a) Discuss the architecture and environment setup of Node.js.
OR
(b) Write a detailed note on NPM (Node Package Manager) and its functionalities.

Q7

(a) Explain how HttpSession can be used for session tracking in Servlets.
OR
(b) Discuss the standard actions in JSP and their applications.

Key Topics for Revision

1. Web Development Strategies

Client-side: HTML, CSS, JavaScript (UI/UX).

Server-side: PHP, Java (Servlets, JSP), Node.js, Python.

Full-stack: Integration of both client and server.

Emphasis on responsive design, API integration, security, and version control.

2. Client-Server Computing

Client: Sends requests (browser).           Server: Processes requests and returns responses.

Protocol: HTTP/HTTPS.                         Examples: Web servers (Apache, Tomcat), Application servers (Node.js).

3. CSS Concepts

Margin: Space outside element’s border.           Padding: Space inside the border.

Border: Defines the edge of the element.           ID vs Class:

ID (#id) is unique per page.                                 Class (.class) can be applied to multiple elements.

4. AJAX (Asynchronous JavaScript and XML)

Used for asynchronous web communication (no page reload).

Example:

Used in real-time updates (e.g., chat apps, live search).

5. JavaBeans

Reusable software components in Java.                   Properties accessed via getters/setters.

Used in JSP pages for data sharing and encapsulation.

6. Servlet Interface Methods

init() → Initialization.                                                   service() → Request handling.

destroy() → Cleanup before termination.                   getServletInfo() → Returns metadata.

getServletConfig() → Configuration access.

7. Handling HTTP POST Requests

Example:

protected void doPost(HttpServletRequest req, HttpServletResponse res) throws ServletException, IOException {    String name = req.getParameter("name");    res.getWriter().println("Welcome " + name); }

8. CSS Advanced Topics

Pseudo-classes: Define element states → :hover, :focus, :nth-child().

Pseudo-elements: Style element parts → ::before, ::after, ::first-letter.

9. Networking in Java

InetAddress: Resolves domain names and IPs.

Factory Methods: ServerSocket, Socket, and their input/output streams manage client-server communication.

10. Node.js Architecture

Asynchronous, event-driven, single-threaded runtime.

Components:                           Event Loop (handles concurrency).

V8 Engine (executes JS).         NPM (package management).

Applications: Web servers, APIs, real-time apps.

11. JSP and HttpSession

HttpSession: Tracks user data across requests.

JSP Standard Actions: <jsp:useBean>, <jsp:include>, <jsp:forward>, <jsp:setProperty>, <jsp:getProperty>.

12. NPM (Node Package Manager)

Features:                              Package installation (npm install express).

Version control.                    Dependency management via package.json.

Custom scripts (npm run dev).

13. URL Structure

https://example.com:8080/folder/page.html?user=1#section 

Exam Preparation Tips

Focus on Servlet lifecycle and JSP actions.                  Revise CSS selectors and pseudo-elements.

Practice AJAX and Java networking code snippets.    Prepare short Node.js + NPM definitions.

Revise Session management and HTTP request handling (GET/POST).