Q23. Why do organizations mostly use Intranet instead of the Internet to share information within its premises?
Ans. Intranet is generally used to link different computers in an
organization. The term Intranet is a combination of two words, intra and net. Intra means inside or within; therefore, an Intranet implies a network inside something (such as an organization).
Unlike the Internet, an Intranet is limited to a small area or organization. Organizations mostly use Intranet instead of the Read More …
Q22. Define ISP. Name some popular ISP companies of India.
Ans. ISP stands for Internet Service Provider; it provides the settings, such as username and password, which is needed to configure the Internet connection on the computer. The subscription for an Internet connection is done from an Internet Service Provider (ISP). The ISP to choose should be reliable and provide immediate help to any Internet connection problems. There are a number of ISPs, such as MTNL, Airtel, Reliance, etc. User should choose the ISP that provides a wide variety of Web services in the respective area.
Some popular ISP companies of India are as follows:
- Videsh Sanchar Nigam Ltd. (VSNL)
- Mahanagar Telephone Nigam Ltd. (MTNL)
Q21. What is e-learning? Explain its importance.
Ans. Electronic learning (e-learning) is the mode of acquiring knowledge by means of the Internet and computer-based training programs.
In this type of education, students learn and study on their own and communicate with their instructors and other students through e-mail messages, electronic forums, video-conferencing, chat rooms, bulletin boards, and messaging. Examples of e-learning comprise different forms of learning like Web-based and computer-based learning and virtual classrooms. E-learning employs a variety of media, such as audio, animation, text and streaming videos to impart learning or training. E-learning is said to be more effective than the traditional classroom learning methods.
Q20. What do you mean by a search engine? Name two popular search engines. What role do search engines play in Web surfing?
Ans. A search engine helps in searching information on the Internet according to the specified criterion. For example, if a user wants to know which universities in Delhi offer management courses, then transform the information requirement into a search criterion and feed it into a search engine. Within seconds, a long list of websites will appear on the monitor, which will provide users with the desired information.
Two popular search engines are as follows:
A search engine plays a vital role in Web surfing. The search engines allow users to find information on the Internet on the basis of the specified search criteria. They provide a number of related links when a search query is specified to them thereby allowing the users to visit different Web pages of same or different websites. This continuous search for the information on the Internet is known as Web surfing
Q19. Expand and explain the following terms:
Write notes on each of them.
- HTML: HTML stands for HyperText Markup Language. It is a markup language containing tags to design Web pages. When a Web page is opened in the Web browser, the formatted content is displayed instead of tags. HTML is used to design the layout of a Web page. Read More …
Q18. List the advantages of e-mail.
Ans. The following are the main advantages of e-mail:
- Saves paper and allows users to edit the message easily,
- Transmits messages faster than other conventional forms of communication, such as speed post and courier service,
- Allows users to send and receive messages according to their comfort and convenience level, i.e. a user need not go to buy stamps and envelopes and then post the letter in the post office, Read More …
Q17. Describe the e-mail service.
Ans. E-mail is one of the most popular and important services provided by the Internet. Today, email has become one of the most widely used tools of communication. Through e-mail, a user can communicate with anyone around the world by sending and receiving electronic messages within seconds. In the 1970s, when the e-mail service had just started, user could only send textual messages. However, today it is possible to send or receive Read More …
Q16.What are the uses of the Internet?
Ans. Internet has undergone a phenomenal growth since the last decade. From searching for information to downloading music and videos, sending and receiving e-mail messages to communicate with friends, and conducting everyday transactions, the Internet has become an integral part of our lives. The Internet has evolved as a fast and economically feasible mode of communication. Read More …
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.
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 …