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(b) URL (Uniform Resource Locator) specifies the location of a specific Web page on the Internet.

Blogging is the act of posting content on a blog.

Wi-Fi and WiMax.

Using WWW, a user can download files, listen to music view video files and jump to other documents or websites by using hypertext links.

Due to its extensible use and sharing of data, the Internet becomes so popular.

The bulletin board which produces news over Internet is known as Newsgroup.

dial-up connection

Internet protocol

(d) Internet exchange information, access pictures, find diverse perspective on issues from a global audience.

(d) A blog consists of images, text and links.

Yes, as a location on a Web server, which is called a Website and each Website has a unique address known as URL. So, an URL can be used to access a Web page.

(b) On the Internet, all Websites owned and operated by an organisation are part of the .org domain.

(b) The domain name edu provides domain registration at no cost to educational institutions.

VoIP allows delivery of voice communications over IP networks. 

(a) A protocol is a set of rules that govern the communication between computers on a network.

The character based naming system by which server are identified is known as domain name system.

E-mail address

False The process of converting digital signal into analog signal is called modulation and is done by a modem.

True The World Wide Web (WWW) is a set of programs, standards and protocols that allows the multimedia and hypertext files to be created, displayed and linked on the Internet.

1. Web addresses

2. E-mail addresses

3. Web address

4. E-mail address

.org and .com

1.  Web address

2. E-mail address

3. Web address

4. E-mail address

(c) Hypertext refers to the combination of text, graphic images, audio and video tracks and hyperlinks.

1.  Web address

2. E-mail address

3. Web address

4. E-mail address

1. Web addresses

2. E-mail addresses

3. Web address

4. E-mail address

(c) /index.htm, because path name identifies the path of a Web page.

False URL is the Web address for a Website or a Web page.

Server is a computer program that provides services to other computer programs.

Internet Explorer and Google Chrome.

Web pages on a site are linked together through a system of hyperlinks.

The protocol help to communication between a  Web server and web browser is HTTP.

Safari is a Web browser developed by Apple.

1. Internet

2. Images

3. Web browser

4. Websites

5. Web pages

6. Google Chrome

(b) Lynx is a highly configurable text-based Web browser.

(c) Internet service provider is used to join the Internet.

Internet is a network of networks.

DNS stands for Domain Name System. It is a hierarchical distributed naming system for computers, services or any resources connected to the Internet or a private network. It associates various information with domain names assigned to each of the participating entities. 

The different functions of DNS are as follows: 

• It translates meaningful domain names into the numerical IP addresses, which is needed for the purpose of locating computer services and devices worldwide. 

• It serves as the phone book for the Internet by translating human-friendly computer hostnames into IP addresses. 

• The DNS can be quickly updated, allowing a service’s location on the network to change without affecting the end users. 

• It distributes the responsibility of assigning domain names and mapping those names to IP addresses by designating authoritative names servers for each domain. 

• It also specifies the technical functionality of database service. It defines the DNS protocol, a detailed specification of the data structure and data communication exchanges used in DNS, as part of the Internet Protocol Suite (IPS).

(a) The Advanced Research Projects Agency Network (ARPANET) was the world’s first operational packet switching network.

HTTP is a protocol used on Internet. It works in combination with WWW. It allows us to access hypertext documents on WWW. Since, WWW allows us to access or use multimedia files on the Internet and the hypertext files support multimedia.

• The Internet is called ‘Network of Networks’ because it is a global network of computers that are linked together by cables and telephone lines making communication possible among them. It can be defined as a global network over a million smaller heterogeneous computer networks. 

• The network which consists of thousands of networks spanning the entire globe is known as the Internet. 

• The Internet is a worldwide collection of networked computers, which are able to exchange information with each other very quickly. 

• Most people use the Internet in two ways, E-mail, and the World Wide Web. On the Internet, most computers are not connected directly, they are connected to smaller networks, which in turn are connected through gateways to the Internet backbone.

• A gateway is a device that connects dissimilar networks. A backbone is a central interconnecting structure that connects one or more networks.

(b) IP has the task of delivering packets from the source host to the destination host.

(b) A domain name is a hierarchical series of character strings representing different levels of domains separated by dot/period.

(b) An IP address consists of 4 numbers separated by periods.

(b) Each computer connected to the Internet must have a unique IP address.

(c) DNS translates domain names into their IP addresses and vice-versa.

Internet internally follows number based addressing system. Numeric address of a computer is called IP address by a scheme called Domain Name System (DNS). The IP address consists of four numbers from 0 to 255, separated by dots. 

The characteristics of an IP address are as follows: 

1. IP addresses are unique. 

2. IP addresses are global and standardized.

A home page is the first page of a Website.

The two advantages of home page are as follows:

1. It helps viewers to find out what they can find on that site.

2. Publicity of an individual or community.

MODEM stands for MOdulator/DEModulator. It is a hardware device that enables a computer to send and receive information over telephone lines by converting the digital data used by your computer into an analog signal used on telephone lines and the converting back once received on the other end.

The Internet can be useful for us in the following ways:

1. Allows organizations to advertise their products.

2. Provides information.

3. Easily communicate with other people.

4. Save paper as we can publish documents on the Internet.

BSNL and Airtel