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CBSE Class 12 Computer Science Question 76 of 186

Computer Networks - II — Question 8

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Question 8

"Bhartiya Connectivity Association" is planning to spread their offices in four major cities in India to provide regional IT infrastructure support in the field of Education & Culture. The company has planned to setup their head office in New Delhi in three locations and have named their New Delhi offices as "Front Office", "Back Office" and "Work Office". The company has three more regional offices as "South Office", "East Office" and "West Office" located in other three major cities of India. A rough layout of the same is as follows :

"Bhartiya Connectivity Association" is planning to spread their offices in four major cities in India to provide regional IT infrastructure support in the field of Education & Culture. The company has planned to setup their head office in New Delhi in three locations and have named their New Delhi offices as "Front Office", "Back Office" and "Work Office". The company has three more regional offices as "South Office", "East Office" and "West Office" located in other three major cities of India. A rough layout of the same is as follows : Python Computer Science Sumita Arora Solutions CBSE Class 12"

Approximate distances between these offices as per network survey team is as follows :

Place FromPlace ToDistance
Back OfficeFront Office10 km
Back OfficeWork Office70 m
Back OfficeEast Office1291 km
Back OfficeWest Office790 km
Back OfficeSouth Office1952 km

In continuation of the above, the company experts have planned to install the following number of computers in each of their offices :

Back Office100
Front Office20
Work Office50
East Office50
West Office50
South Office50

(i) Suggest network type (out of LAN, MAN, WAN) for connecting each of the following offices :

  1. Back Office and Work Office
  2. Back Office and South Office

(ii) Which device you will suggest to be produced by the company for connecting all the computers with in each of their offices out of the following devices ?

  1. Switch/Hub
  2. Modem
  3. Telephone

(iii) Which of the following communication medium, you will suggest to be procured by the company for connecting their local offices in New Delhi for very effective and fast communication ?

  1. Telephone Cable
  2. Optical Fibre
  3. Ethernet Cable

(iv) Suggest a cable/wiring layout for connecting the company's local offices located in New Delhi. Also, suggest an effective method/technology for connecting the company's regional offices-"East Office", "West Office" and "South Office" with offices located in New Delhi.

Answer

(i) The network types for connecting the offices :

  1. Back Office and Work Office through LAN as the distance is less than 1 km
  2. Back Office and South Office through WAN as the offices are very far from each other.

(ii) Switch/Hub

(iii) Optical Fibre

(iv) A cable/wiring layout for connecting the company's local offices located in New Delhi is given below:

Front office - Back office - Work office

Satellite links can be established for connecting the company's regional offices-"East Office", "West Office" and "South Office" with offices located in New Delhi.