CLASS 10 INTRODUCTION TO INTERNET IMAGE


SEBA 
CLASS- 10
CHAPTER-1
Introduction to Internet

    1. Fill in the blanks:

    a. The first page of a website is called the Home page

    b. Areas with Wi-Fi server are called Hotspot.

    c. The TCP of the TCP/IP is responsible for the breaking up date into smaller pieces at the source computer.

    d. Web browser are the programs that help user navigation the WWW.

    e. First part of http:// www.mywebpage.org represent the service provider.

    f. Websites is a collection of related web pages, images, and videos hosted on a web server.

    g. The World Wide Web  is a series of server interconnected through hypertext.

    h. HTTP is a communication protocol used on the Web to transfer all kind of information.

    i. A web page is a special type of file written in HTML.

    j. The Internet is a global network of networks.

     

    2. Write True or false

    a. The Internet is an interconnection between several computer of the same kind. FALSE

    b. The first network, Called the ARPANET, was started in England. FALSE

    c. Protocols are sets of rules that computers use to communicate logically. TRUE

    d. All the computers have direct connections to the internet. FALSE

    e. Routers help connect to the internet through telephone lines. FALSE

    f. Each computer on the Internet has an address called IP address. TRUE

    g. At the destination, TCP resembles the packets into a complete message. TRUE

    h. you can also connect to the Internet through the same cable system that you use for watching cable television. TRUE

    i. Web pages on a site are linked together through hyperlink. TRUE

    j. A website can contain four web pages at the most. FALSE

     

    3. Choose the correct options.

    a. Which of the following is not a web browser? 

    Microsoft Word

    b. Each web page has a unique address called

    URL

    c. Which of the following can be present on a web page?

     All of these

    d. Which if the following is not an ISP in India?

    TCP/IP

    e. The process of converting a digital signal into an analog signal is called

    Modulation

    f. A ____ directs Internet traffic by determining the best path that an be taken to transfer data.

    Router

    g. The protocol that are commonly used for working with the Internet are

    both (i) and (ii)  IP and TCP

    h. A ____ help to connect to the Internet through telephone or cable lines.

    Modem

    i. When data is passed from one computer system to another, it is broken up into pieces called Packets.

    TCP

    j. The Internet connection is provided by

     An ISP


    1. Short answer question:

    a. What is the internet?

    The Internet is an interconnection of several computer from different network spread across the world. It is a global network of networks.

    b. What do you mean by protocols?

    Protocol are a set of rules that computers use to communicate logically.

    c. Mention the names of any two ISP’s in India.

    The names of ISP’s in India are: 1. BSNL 2. Airtel 3. VSNL  4. MTNL

    d. Give the full form of DSL and ADSL?

    DSL – Digital Subscriber Line

    ADSL – Asymmetric Digital Subscriber Line.

    e. Name any two commonly used web browsers.

    Two commonly used web browser are:

    Microsoft Internet explorer

    Google Chrome

    Safari

    Opera

    Mozilla Firefox

    f. What do you mean by Home Page?

    The first webpages of a website is called Home Page.

    g. What is the HTML used for?

    HTML is a language used for creating web pages.

    h. What is the other name for Letter Addressing System? Give one example of the letter addressing system?

    Domain Name is the other name for Letter Addressing System. Example – assam.gov.in, yahoo.com, hotmail.com, and oup.com.

    i. What is the domain extension of the following?

    Educational Institutions - .edu

    Networking Organization - .net

    j. Write a short note on 3G?

    3G (short for third generation) is the third generation of wireless mobile telecommunications technology provide high data transfer speed of at least 200Kbps. It finds application in video call, mobile Internet access, GPS and fix wireless internet access. This is based on a set of standards used for mobile devices and mobile telecommunications use services and networks that comply with the International Mobile Telecommunications.

    2. Long answer questions:

    a. Mention the protocol commonly used of working with the Internet.

    The protocol commonly used for working with internet are IP (Internet Protocol) and TCP (Transfer Control Protocol).

    b. Explain the use of channels.

    A channel is a medium used to carry information or data from one computer to another computer. This channel then connect to the Internet via router and modem. This way several pathways from one computer system to another can be established.

    c. Differentiate between a Router and a Modem.

    The different between Router and Modem are given below:

    ROUTER

    MODEM

    1. Router connects devices to Wi-Fi

    1. Modem connect to the Internet

    2. Router creates a network between the computer in your home

    2. Modem connects that network and thus the computer on it to the Internet

    3. Router connects your devices to your Local area Network (LAN)

    3. Modem connects you to a Wide Area Network (WAN) or the Internet

    d. What is an IP address and what is its use?

    An IP address Internet Service Provider is an identifying number for network hardware connected to a network. It help in connecting your computer to other devices on your network all over the world. IP address is used to exchange information, send or receive e-mail message, etc.

    e. Explain the process of sending data from one computer to another.

    Data is process from one computer system to another computer using the Internet protocol which provide an IP address which help in locating the correct destination of the sender and exchanging information when information is passed from one computer system to another, it is broken down into pieces call packets using TCP. Each packets contain 1500 bytes or characters. These packets are passed from one network to another until they reach their destination. At their destination, TCP reassembles the packets into a complete message. If the packets are damage or lost, a request is sent to the sender to resend them.

    f. What do you mean by Modulation and Demodulation?

    Modulation is the process of converting a digital signal into an analog signal. Whereas, Demodulation is the process of converting an analog signal into digital signal.

    g. What do you mean by World Wide Web?

    World Wide Web is an internet- based networks of server that are interconnected through hypertext which is a method of presenting information in which the section of highlighted text displays more information on a particular topic called hyper link.

    h. Differentiate between a Websites and Web Page.

    The different between websites and web page are given below:

    WEB SITES

    WEB PAGE

    -Websites is a collection of one or many related webpage.

    -Webpage is a electronic document written in the computer language called HTML.

    i. What is HTTP? What is it required?

    The HTTP is an communication protocol used to transfer all kinds of information like text, image, video, audio, and other multimedia file on the web Page.

    It is required in a web browser to send request to the server machine. The server received the request and after performing any necessary processing it return the requested files to the client (i.e. Web Browser) that made the request running on your computer.

     

    j. Explain the two type of Web addressing system with examples.

    The two type of Web addressing system are:

    i) Letter Addressing System: The web address of any computer or network can be given using alphabets called letter addressing system and it is popularly known as DNS. Example assam.gov.in, yahoo.com, hotmail.com etc. The last three letters of the address provide information on the kind of organization the address belong to. The letters also uses country codes comprising two letters. Examples of country codes are: ca (Canada), in (India), us (United State), Jp (Japan) etc.

    ii) Number Addressing System: Every TCP/IP network require network number and every host on a TCP/IP network required a unique IP address.

    Example: 132.128.1.100

                        ↓               ↓

         (Network part)   (Host Part)


    APPLICATION BASED QUESTION

    1. Arup has purchased a new computer. He wants to have an Internet connection at home.

    a) Apart from a computer, what are his other hardware requirements?

    b) Can you suggest the names of any two internet service providers he can approach to get an Internet connection?

    c) Which type of Internet connection should he opt for?

    Ans : a) Apart form a computer the hardware he will required are Modem, a Router or a Dongle.

    b) I will suggest him to approach for BSNL and Reliance Jio Internet Service Providers

    c) He should opt for a wireless internet connection such as a Wi- Fi router and a Wi-Fi adapter should be connected and installed to the computer for the Wi-Fi access from the router.

     

    2. Gorma wants to create a website for her father’s company.

    a) Which language should she learn for this purpose?

    b) Which software will she require to view the website?

    Ans: a) For this purpose she should learn Hyper Text Markup Language.

    b) To view the web sites she will required a web browser such as Mozilla Firefox, Goggle Chrome, or Internet Explore.

     

    3. Khelan’s Mother has asked him to open his school’s Website and tell her about the following:

    a) What is the first page of a website called?

    b) How are the web pages of website connected?

    Ans: a) The first page of a website is called the home page.

    b) The web pages of a website are connected through hyperlink.

     

    4. In the URL http//: www.abccompany .com

    a) What does .com suggest?

    b) Which component identifies the types of protocol?

    Ans: a) .com suggest that the web address belong to Commercial Organization.

    b) The component http:// or the service part of the URL identifies the type of protocol.

     

    5. Monjul wants a mobile connection for his cell phone. Which of the two -2G or 3G – is better, and why?

    Ans: Monjul should choose 3G because its better than 2G and it provides high data transfer speed of at least 200 Kbps which is sufficient for a mobile internet user. It finds application in video call, mobile internet access, GPS, and fix wireless internet access.


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