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:
- 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.
