Dial-up connection and a wireless connection.

Q15. Differentiate between a dial-up connection and a wireless connection.
Ans. A dial-up connection is a temporary connection that uses the public switched telephone network (PSTN) to connect to the Internet. This type of connection is set up between the client’s computer and the ISP server. The dial-up connection is established with the help of a modem (a device that allows the computer to transfer data over a phone line). An Internet connection established through a dial-up connection is available till the time client is connected to the ISP server. Once the client gets disconnected from the ISP server, the client needs to restart the dial-up connection to connect to the Internet again. Therefore, it will need a dedicated line to remain connected to the Internet. On the other hand, a wireless connection refers to a connection that does not use any wires to communicate or transfer information or data between two or more computers (or other devices, such as mobile phones). The distance between the devices connected to each other through a wireless Internet connection does not affectthe rate of data transfer between them.

Lynx as text-based Web Browser.

Q14. What does it mean when we say that Lynx is a text-based Web browser? Name some graphical Web browsers.
Ans. A Web browser is an application that is used to access or retrieve information or resources from the Internet. This information is available in different formats, such as audio and video files, text and images. Although, a Web browser is specifically designed to access information from the Internet, it can also be used to access resources on the local Intranet or files in a file system. Read More …

Domain Name.

Q13. What do you understand by the term ‘domain name’?
Ans. Domain name is the third component of a URL, and represents the name of one or more computers that act as servers on the Internet. For example, in the URL, http://www.google.com, Google specifies the domain name. A large website, such as Google or Yahoo!, uses more than one computer and this entire group of computers acts as a single server. A domain name must be Read More …

Web portal.

Q12. What is a Web portal?
Ans. A Web portal refers to a website that presents information from several sources. It also contains hyperlinks to many other websites. When a user clicks any of these hyperlinks, he/she is redirected to the linked Web page. Examples of Web portals like Yahoo!, AOL, MSN and Netscape signifies the next stage of the Web portal development. The term Web portal started to be used Read More …

How Internet is different from the Intranet.

Q11. How Internet is different from the Intranet?
Ans. Intranet is a private network that is accessible only within an organization. It is based on the Internet technology and therefore can be used by several users across multiple locations and still remain private. Intranet allows the employees to access data of an organization easily and economically, while protecting the information from unauthorized access.

On the other hand, the Internet is a collection of millions of computers connected together across countries and continents, forming a worldwide network. This global network allows easy access and transfer of data and communication among people anywhere in the world.

Types of Web browsers.

Q9. List the types of Web browsers. Explain them briefly.
Ans. A Web browser is an application that is used to access or retrieve information or resources from the Internet. This information is available in different formats, such as audio and video files, text and images.

There are two types of Web browsers: Read More …

Explain how a Web browser works

Q10. Explain how a Web browser works?
Ans. A Web browser is an application that is used to access or retrieve information or resources from the Internet. This information is available in different formats, such as audio and video files, text and images. The information resources on the Internet are identified by Uniform Resource Locator (URL), which is a unique        address of each Web page. Although, a Web browser is specifically designed to access information from the Internet, it can also be used to access resources on the local Intranet or files in a file system. Read More …

Define the TCP/IP protocol.

Q8. Define the TCP/IP protocol.
Ans. All computers on the Internet communicate with one another using the Transmission Control Protocol/Internet Protocol (TCP/IP) suite which is the basic communication protocol of the Internet.

The TCP part of the TCP/IP suite breaks the data into small packets to be transmitted over the network. TCP/IP is an open protocol, which means that it is not tied to any one particular hardware or software vendor. The TCP part is also responsible for assembling the packets at the destination computer. The IP part handles the address of the destination computer so that the data is sent to the correct address.

Process of transmitting information/messages over Internet.

Q7. Describe the process of transmitting information/ messages over the Internet.
Ans. The computers on the Internet are connected to each other with the help of various small networks. These networks are in turn connected through the gateways to the Internet backbone. There are various steps for transmitting data or information through the Internet.

These steps are described below: Read More …

advantages and disadvantages of a wireless connection.

Q6.What are the advantages and disadvantages of a wireless connection?
Ans. A wireless Internet connection refers to a connection that does not use any wires to communicate or transfer information or data between two or more computers (or other devices, such as mobile phones).

Some of the wireless connection methods available are Wi-Fi, WiMAX, 3G, 4G, 4.5G and 5G.

The advantages of a wireless connection are: Read More …