Class X introduction to computer network chapter 1




      Chapter 1

      INTRODUCTION TO 

      COMPUTER NETWORKS


      1.  Fill in the blanks :

      1. The host name command use to display hostname or computer name.

      2. The length of the IPvd and a IPv6 is 32 and 128 bytes respectably.

      3. An access point is used to connect wireless network.

      4. The ping command is used to verify the connectivity between two computers.

      5. HTTPS transfer encrypted data.


      II. Multi Choice Questions:

      1. Which device is required to connect multiple heterogeneous network?

       Router

      2. Which is the largest type of computer networks?

      WAN

      3. Which protocol transfer encrypted data instead of plain data

      HTTPS

      4. How many bytes are reserved for OUI in a MAC address?

      24

      5. IP address can be automatically assigned if the network is connected with

      DHCP server

       

      III. Short Answer Questions:

      1. Mention the name of component required to set up a MAN network.

      Component required to setup a MAN network are :

      a) Network Cards, Cables

      b) Hub, Switch, Routers

      c) Access Point

       

      2. Why hostname should not be used to identify a computer in a computer network?

      Hostname should not be used to identify a computer in a computer network because there is a possibility that two or more users assign the same name hostname or want to change the hostname their might be a conflict to identify a computer.

       

      3. Give the examples of valid and five example of invalid IPv4 address.

      (Hint: Each segment of an IPv4 address has a fix length)

      Five examples of valid IPv4 address are:

      a) 265.16.4.1

      b) 182.25.4.6

      c) 195.23.6.4

      d) 145.70.12.3

      e) 131.55.33.7

      Five examples of invalid IPv4 address are:

      a) 265.16.4.1

      b) 182.25.33.6

      c)  131,55,33. 6

      d) 23 .  6 .  310 . 5

      e) 121.. 5 .  1.  3

       

      4. Can we compare HTTP and FTTP Protocols? Mention their functionality.

      Yes, we can compare HTTP and FTTP protocols.

       

      HTTP

      FTP

      1. It stand for Hyper Text Transfer Protocols.

      2.It is the backbone of WWW.

      3. It is an Internet standard that allows the process of the transfer of web page over the internet.

      4. It also defines how the web browser will respond to any web request.

       

      1. It stand for File Transfer Protocol.

      2. It is a standard internet protocol used for transmitting files from one computer to another over a network.

      3. Using FTP command user can move around different directories of the servers, download files, upload files, delete files etc.

       

      5. How many 16 port switches are required to connect 31 computers in a network?

      Three 16 ports switches are required to connect 31 computers in a network.

       

       Additional Questions:

      1. Which types of network (out of LAN, PAN, and MAN) is formed, when you connect two mobiles using Bluetooth to transfers a picture file?

      PAN(Personal Area Network) is created when two mobiles are connected using Bluetooth to transfers  a picture file.

       

      2. What is the different between HTTP and FTP?

      The different between HTTP and FTP is that –

      HTTP: is a protocol used to transfer files from a web server into a browser in order to view a web page that is on the Internet. Where as

      FTP: is a protocol used to upload files from a workstation to a FTP server or download files from a FTP server to a workstation.

       

      3. In Networking, what is WAN?

      WAN is a Wide Area Network form by connecting devices from multiple location across the globe. Since it is spared over the world it gives an idea of typical Wide Area Network.

       

      4. Name any two components required for networking?

      Switch/Hub and Repeaters.

       

      5. What is hub?

      A hub is a device used to connect several computers together.

       

      6. What is a protocol? Which protocol is used to copy a file from/ to remote server?

      A set of rules that a computers use to communicate logically is called a protocol.

      FTP(File Transfer Protocol) is used to copy a file from/ to remote server?

       

      7. Which protocol is used to search information from internet using an internet browser?

      WWW(World Wide Web) is used for searching information on the internet using any internet browser.

       

      8. What do you mean by World Wide Web?

      World Wide Web (WWW) is an Internet-based network of a servers that are interconnected through hypertext.

       

      9. What is the advantage of using SWITCH over HUB?

      The advantage of using SWITCH over HUB is that, SWITCH provides a dedicated line at full bandwidth between two devices but HUB doesn’t provide a dedicated line. HUB share the bandwidth.

       

      10. Write the full form of the following TCP, POP, SMTP, HTTPS, URL, ARP, MAC, PAN, NIC, OUI, DHCP, SSID

       Click me 👨  get the  Full Form 

      11. Define Computer Networking.

      Computer Networking is the practice for exchanging information between two or more computer devices together for the purpose of sharing data.

       

      12. Name the basic networking commands?

      The basic networking commands are

      a) ping

      b) ipconfig

      c) hostname

      d) arp

       

      13. What is Router?

      A Router are devices that direct Internet traffic by determining the best path to be taken to interconnect two or more heterogeneous computer network.

       14. What is the function of POP and SMTP?

      The function of POP is that, it allows an e-mail client to download an email from an e-mail server.

      Where as,

      The function of SMPT is that it is used when an e-mail is delivered from an e-mail client to an e-mail server, or  when an e-mail message is delivered from one e-mail server to another.

       

      15. Write the different between HTP and HTTPS.

      HTTP

      HTTPS

      1. HTTP stand for Hyper Text Transfer Protocol

      2. There is no encryption and decryption

      3. HTTP URLs begin with http://

      1. HTTPS stand for Hyper Text Transfer Protocol Secure

      2. There is encryption and decryption

      3. HTTP URLs begin with https://

       

      16. Write the different between LAN and WAN

      LAN

      WAN

      1. LAN is a Local Area Network that connects a small group of computers in a given geographical area.

      2. Very easy to design and maintain.

      3. LAN speed is quite high

      1. WAN is a Wide Area Network that has the capacity to connect various countries together.

      2. Very difficult to design and maintain

      3. WAN speed is lower than that of LAN

       

      17. Write the different between LAN and MAN

      LAN

      MAN

      1. LAN is a Local Area Network that connects a small group of computers in a given geographical area.

      2. Very easy to design and maintain.

      3. The congestion in the network is very low

      4. LAN speed is quite high

      5. LAN is often owned by private organizations.

      1. MAN is a Metropolitan Area Network comparatively wider network that covers larger regions- like town, cities, etc…

      2. Comparatively difficult to design and maintain than LAN

      3. It exhibits a higher congestion in the network.

      4. MAN speed is average.

      5. MAN ownership can be private or public

       

      18. What is a MAC Address?

      MAC Address is a unique identifier that is assigned to a NIC (Network Interface Controller/Card). It consists of a 48 bit or 64 bit address, which is associated with the network adapter. MAC address can be in hexadecimal format.

       

      19. What is a switch?

      A Switch is a networking device that can connect multiple devices together on a single network and routes the information.

       

      20. What is RF-45?

      RJ45 is a standard type of connector for network cables and networks. It is an 8-pin connector usually used with the ethernet cables.

       

      21. Explain different types of network.

      PAN(Personal Area Network) is a computer network formed around a person. It generally consists of a computer, mobile, or personal digital assistant.

       

      LAN (Local Area Network) is a group of computer and peripheral devices which are connected in a limited area such as school, laboratory, home, and office building. It is a widely useful network for sharing resources like files, printers, games, and other application.

       

      MAN(Metropolitan Area Network) is consisting of a computer network across an entire city, college campus, or a small region. This type of network is larger than LAN.

       

      WAN(Wide Area Network) are network spread over large distances, across countries or even continents. It can even include a group of LANs connected together.

       

      22. What is an access point used for?

      An access point is used to create a wireless local area network, or WLAN, usually in an office or large building.

       

      23. What is the main different between Hub and Switch?

      The main different between Hub and Switch is that

      Hub is a networking device which is used to transmit the signal to each Port (except one port) to respond from which the signal was received. Whereas,

       

      Switch is a network device which is used to enable the connection establishment and connection termination on the basic of need.


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