Computer Network Board Questions

  1. Fill in the blank : [1 MARK] [2024]

    __________ is a set of rules that needs to be followed by the communicating parties in order to have a successful and reliable data communication over a network.
    Protocol
  2. Which of the following options is the correct unit of measurement for network bandwidth ? [1 MARK] [2024]

    (a) KB
(b) Bit
(c) Hz
(d) Km
    (c) Hz
  3. Which protocol out of the following is used to send and receive emails over a computer network ? [1 MARK] [2024]

    (a) PPP
(b) HTTP
(c) FTP
(d) SMTP
    (d) SMTP
  4. (i) Expand the following terms : [2 MARKS] [2024]
    XML, PPP

    (ii) Give one difference between circuit switching and packet switching.
    (i)
    XML = eXtensibleMarkupLanguage
    PPP = Point-to-PointProtocol

    (ii)
    Circuit Switching :
    A dedicated path is established between the sender and the receiver before starting data transmission. Entire data is transmitted in one go.

    Packet Switching :
    Data to be transmitted is divided into small packets which are transmitted via nearest service provider till all packets reach the recipient where the packets are reassembled.
  5. (i) Define the term web hosting. [2 MARKS] [2024]

    (ii) Name any two web browsers.
    (i) Web hosting is a service that allows users to put a website or a web page on to the internet, and make it a part of the World Wide Web.

    (ii) Chrome, Edge, Safari, Firefox, Opera etc.
  6. Infotainment limited is an event management company with its prime office located in Bengaluru. The company is planning to open its new division at 3 different locations in Chennai named as - Vajra, Trishula and Sudershana.

    You, as a networking expert need to suggest solutions to the questions in part (i) to (v), keeping in mind the distances and other given parameters. [5 MARKS] [2024]

    Distance between various locations:
    Vajra to Trishula 350 m
    Trishula to Sudershana 415 m
    Sudershana to Vajra 300 m
    Bengaluru Office to Chennai 2000 km

    Number of computers installed at various locations :
    Vajra 120
    Sudershana 75
    Trishula 65
    Bengaluru Office 250

    (i) Suggest and draw the cable layout to efficiently connect various locations in Chennai division for connecting the digital devices.

    (ii) Which block in the Chennai division should host the server? Justify your answer

    (iii) Which fast and effective wired transmission medium should be used to connect the prime office at Bengaluru with the Chennai division?

    (iv) Which network device will be used to connect the digital devices within each location of Chennai division so that they may communicate with each other?

    (v) A considerable amount of data loss is noticed between different locations of the Chennai division, which are connected in the network. Suggest a networking device that should be installed to refresh the data and reduce the data loss during transmission to and from different locations of Chennai division.
    (i)  (Full 1 Mark for drawing any valid layout with OR without mentioning topology)

OR

(Only ½ mark fo rmentioning only topology without cable layout)

(ii)  Vajra can hos tthe server as it has a maximum number of computers.

OR

Any other answer with valid justification

(iii)  Optical Fiber

(iv)  Switch/Hub/Router

(v) Repeater

OR

Mentioning any other valid reason or solution for data loss
  7. Fill in the blank : [1 MARK] [2023]

    ___________ is used for point-to-point communication or unicast communication such as radar and satellite.

    (a) INFRARED WAVES
(b) BLUETOOTH
(c) MICROWAVES
(d) RADIOWAVES 

    c) MICROWAVES

or

d) RADIOWAVES
  8. What is the need of Protocols ? [1 MARK] [2023]
    Protocols are needed for communication between computers.

OR

any valid need/definition/explanation of protocol.
  9. Write the full form of the following ? [1 MARK] [2023]

    (i) HTML
    (ii) TCP
    (i) HTML : Hyper Text Markup Language

    (ii) TCP : Transmission Control Protocol
  10. Differentiate between URL and domain name with the help of an appropriate example. [2 MARKS] [2023]
    URL is the complete internet address of a webpage while Domain name is just the name of the organisation/individual entity along with top-level internet domains such as com, edu, gov, etc.

    Example :

    URL: https://www.ncert.nic.in/textbook/textbook.htm

    Domain Name: ncert.nic.in OR www.ncert.nic.in
  11. Differentiate between wired and wireless transmission. [2 MARKS] [2023]
    In case of wired or guided transmission, there is a physical link made of wire/cable through which data in terms of signals are propagated between the nodes. These are usually metallic cable, fiber-optic cable, etc.

    In case of wireless or unguided transmission, data travels in air in terms of electromagnetic waves using an antenna. These are usually bluetooth, microwaves, infrared, radio waves, etc.

    OR

    In case of wired transmission, the devices in the network are connected using cables.

    Wireless transmission uses waves/rays to connect devices.
  12. Quickdev, an IT based firm, located in Delhi is planning to set up a network for its four branches within a city with its Marketing department in Kanpur. As a network professional, give solutions to the questions (i) to (v), after going through the branches locations and other details which are given below : [5 MARKS] [2023]

    Distance between various branches is as follows :
    Branch Distance
    Branch A to Branch B 40 m
    Branch A to Branch C 80 m
    Branch A to Branch D 65 m
    Branch B to Branch C 30 m
    Branch B to Branch D 35 m
    Branch C to Branch D 15 m
    Delhi Branch to Kanpur 300 km


    Number of computers in each of the branches :
    Branch Number of Computers
    Branch A 15
    Branch B 25
    Branch C 40
    Branch D 115


    (i) Suggest the most suitable place to install the server for the Delhi branch with a suitable reason.

    (ii) Suggest an ideal layout for connecting all those branches with Delhi.

    (iii) Which device will you suggest, that should be placed in each of these branches to efficiently connect all the computers within these branches?

    (iv) Delhi firm is planning to connect to its Marketing department in Kanpur which is approximately 300 km away. Which type of network out of LAN, WAN, or MAN will be formed? Justify your answer.

    (v) Suggest a protocol that shall be needed to provide help for transferring of files between Delhi and Kanpur branch.
    (i) Branch D, as it has maximum number of computers OR any other location with valid justification

    (ii) (Based on Server Location) or (Based on minimum distance between branches)

    (iii) Switch/Hub/Router

    (iv) WAN – as the network is spread across different geographical locations of the country.

    (v) FTP