1. What is Internet?

The Internet is a global network of networks that connects millions of private, public, academic, business, and government networks. It uses the standard Internet Protocol Suite (TCP/IP) to link devices worldwide and share data.

2. Explain Protocols? Explain any 5 protocols.

A Protocol is a set of formal rules that govern how data is transmitted and processed over a network.

HTTP (Hypertext Transfer Protocol): Used for transferring web pages over the internet.

FTP (File Transfer

Here are short, exam-ready answers for your Class 11th Science Question Bank:

1) Explain Client-side scripting?

It refers to programs that are executed on the user's browser (the client) rather than the server. JavaScript is the most common example. It is used to create interactive web pages, validate forms, and reduce server load.

2) How to declare a variable in JavaScript?

Variables are containers for storing data. In JavaScript, they are declared using three keywords:

var: Used in older versions

Tercera Infancia

Edad: 7–11 años
Piaget: etapa de operaciones concretas → pensamiento lógico pero sobre situaciones reales.

Adelantos cognitivos

Los niños mejoran en:

• Espacio → entienden distancias, rutas y mapas.
• Causalidad → comprenden causa y efecto.
• Categorización → pueden clasificar y ordenar objetos.
• Conservación → la cantidad no cambia aunque cambie la forma.
• Número y matemáticas → cuentan mentalmente y empiezan a sumar y restar.

Categorización

Incluye tres habilidades:

🔹 1. Key verbs (advertising vocabulary)

• display = show products
• launch = introduce a new product
• persuade = convince someone
• promote = advertise / support
• target = aim at a specific group
• trick = deceive

👉 Example:

• Companies promote brands
• Ads persuade people
• Advertisers target children

🔹 2. Compound nouns

• advertising agency
• brand image
• free samples
• insider knowledge
• luxury goods
• marketing campaign

🔹 3. Quantity words

• majority = most (≈ 70%+)
• proportion = part of a whole
• significant

Theoretical:
Suction Stroke:
The engine cycle starts with this stroke, Inlet valve opens as the piston which is at TDC starts moving towards BDC and the air-fuel mixture in case of petrol and fresh air in case of diesel engine starts entering the cylinder, till the piston moves to BDC.
Compression Stroke:
After the suction stroke the piston again starts moving from BDC to TDC in order to compress the air-fuel (petrol engine) and fresh air (diesel engine) which in turn raises the pressure inside the

Drivers of Digital Business: Digital business is driven by multiple forces that push organizations to adopt digital technologies. 1. Market Forces: Increasing competition and globalization. Demand for better customer experience. Need for faster product delivery 2. Technology Forces: Advancements in AI, Cloud, Blockchain, Data Analytics. Increased internet penetration. Mobile and digital platforms enabling new business models. 3. Economic Forces: Need for cost reduction and efficiency. Economies

UNIT 1: BASICS & TOPOLOGY

Computer Network

A computer network is a system of interconnected devices that communicate and share data using communication protocols.

Basic Terms

• Node: Any device connected in a network.

• Protocol: Rules for communication (TCP/IP, HTTP).

• IP Address: Unique number assigned to each device.

• DNS: Converts domain names into IP addresses.

• Firewall: Protects network from unauthorized access.

Types of Networks

• PAN: Connects personal devices within short range.