Answer the following Question 

1. What is Internet

Solution :-
Internet is a computer-based world wide information network. The Internet is composed of a large number of smaller interconnected networks.
Internet, each connected individual can communicate with anyone else on the Internet, can publish ideas, and can sell products with a mini- mum overhead cost.

2. Define Network.

Solution :-
A network is a collection of interconnected System, which connected through each other by using Wired or Wireless system.

3. Mention some upes of Internet

Solution :-
(i) Businesses use Internet to carry out electronic commerce.
(ii) Internet is used for voice and video conferencing and other forms of communication.
(iii) E-mail on Internet has greatly speeded up the communication among companies and among individuals.
(iv) Internet is also used for communication, entertainment, finding information, reaching customers and for providing many types of services.

4.What do you understand by term URL.

Solution :-
URL. The full form of URL is Uniform Resource Locator. A URL refers to an address on the Internet. Billions of documents/multimedia files can be accessed on Internet through their URLs.

5. What is LAN, WAN, MAN and PAN
LAN :- LAN Stand for Local Area Network.
WAN :- WAN Stand for Wide Area Network.
MAN :- MAN Stand for Metropolitan area network
PAN :- PAN Stand for Personal Area Network.

6. Give two Example of guided communication media?
Solution :- Coaxial cable , Fiber optics cable.

7. Give two Example of unguided communication media?
Solution :- Infrared waves , Radio waves and Micro waves.

8. Discuss some advantages and limitations of E-mail.

Solution.

Advantages:
(i) Low cost
(ii) Speed
(iii) Waste Reduction
(iv) Ease of Use
(v) Record Maintenance

Limitations:
(i) Impermanent
(ii) Hardware requirement
(iii) A hasty medium
(iv) Hard to convey emotion.

9. Discuss the structure of an email message in brief.

Solution.
In an email-message, apart from the message text, there are some other fields, which are used for some specific purposes as listed below:
(i) To: In this field, the e-mail address of the recipient is given.
(ii) CC: In this field, the e-mail addresses of the Carbon Copy recipients of the mail, are mentioned
(iii) Bee: In this field, the email addresses of the blind carbon copy recipients are mentioned.

10. What is Chatting? Is it necessary to be online (ie, connected to Internet) while chatting?

Solution.
Chat is online textual conversation wherein the message typed by the sender is instantly made available to the recipient and vice versa. Yes, it is necessary to be online while chatting.

11. Which of the following entires is different from others? Why?
Safari, Chrome, Netscape, FaceBook

Solution. FaceBook. It is a social networking site while others are web browsers.

12 What is VoIP? How does it work?

Solution :-

VoIP is a technology that allows one to make audio and video calls over a Broadband Internet connection. Full form of VolP is Voice over Internet Protocol.
It works as follows:
(a) The caller speaks into a microphone that is connected to a sound card.
(b) The sound card has an ‘Analogue-to-Digital converter that translates the caller’s speech into a digital stream.
(c) That data is given a destination address and off it goes like any other data stream.
(d) The receiving computer has the right VoIP software to convert the incoming data back into speech.