Q.1-Definition of Internet

A.1- A means of connecting a computer to any other computer anywhere in the world via dedicated routers and servers. When two computers are connected over the Internet, they can send and receive all kinds of information such as text, graphics, voice, video, and computer programs.

The Internet is a global network connecting millions of computers. More than 100 countries are linked into exchanges of data, news and opinions. According to Internet World Stats , as of December 31, 2011 there was an estimated 2,267,233,742 Internet users worldwide. This represents 32.7% of the world's population.

Q.2-Evolution of Internet

A.2-The Internet is evolving. The majority of end-users perceive this evolution in the form of changes and updates to the software and networked applications that they are familiar with, or with the arrival of entirely new applications that change the way they communicate, do business, entertain themselves, and so on.

Evolution occurs as a response to a stimulus. In the Internet context, these come in the shape of challenges for which improvements are needed, as well as bright ideas for which implementations are sought. Yet, some very valid critical Internet technologies have had challenged deployment histories because the incentives haven't been aligned with the costs of deployment.

Q.3-What is an internet application.

A.3- Internet applications are programs of sorts that may replicate a program that you have on your computer. Generally, internet applications are less powerful than their software counterparts that run on your computer. Good examples of internet applications include Google Apps, which are less powerful alternatives to Microsoft Office, any web based mail client which can replace the functionality of Outlook or Thunderbird which runs on your computer.

Q.4-what is Internet Technologies.

A.4- Internet Services Technology covers a broad range of technologies used for web development, web production, design, networking, and e-commerce. The field also covers Internet programming, website maintenance, Internet architect, and web master.

Q.5-what are Clients and Servers.

A.5-Client-server is a computing architecture which separates a client from a server, and is almost always implemented over a computer network. Each client or server connected to a network can also be referred to as a node. The most basic type of client-server architecture employs only two types of nodes: clients and servers. This type of architecture is sometimes referred to as two-tier. It allows devices to share files and resources.

Each instance of the client software can send data requests to one or more connected servers. In turn, the servers can accept these requests, process them, and return the requested information to the client. Although this concept can be applied for a variety of reasons to many different kinds of applications, the architecture remains fundamentally the same.

Q.6-What is host and node.

A.6- In networks, a processing  location .  A node can be a computer or some other device, such as a printer. Every node has a unique network address, sometimes called a Data Link Control (DLC) address or Media Access Control (MAC) address.

An Internet host used to be a single machine connected to the Internet (which meant it had a unique IP address). As a host, it made certain services available to other machines on the network. However, virtual hosting now means that one physical host can actually be many virtual hosts.

Q.7-What is Internet Services.

A.7-Internet Service Provider, it refers to a company that provides Internet services, including personal and business access to the Internet. For a monthly fee, the service provider usually provides a software package, username, password and access phone number. Equipped with a modem, you can then log on to the Internet and browse the World Wide Web and USENET, and send and receive e-mail. For broadband access you typically receive the broadband modem hardware or pay a monthly fee for this equipment that is added to your ISP account billing.

Q.9 - Different Type of Connections.

A.9- There is 2 general ways to connect to the Internet:

A) Wired Broadband:

1. Dial-Up- 

To get a dial-up connection, your computer will dial a phone number using your telephone line.

Dial-up connections need a modem to connect to the internet and you pay for a call each time you dial-up. Dial-up connections are really slow compared to broadband, and are usually too slow for streaming video and making voice or video calls on the internet.

If you want to do more than read web pages and send emails, you'll probably need a broadband connection.

2. DSL (Digital Subscriber Line)

3. Cable

4. T1 Line

5. BPL (Broadband over Power Lines)

6. Fiber Optic Cables

B) Wireless Broadband:

1. Fixed Wireless

2. Wi-Fi

3. Satellite

4. Wi-Max

Leased Line- A leased line is a telephone line that has been leased for private use. In some contexts, it's called a dedicated line. A leased line is usually contrasted with a switched line or dial-up line.