Question

Consider the following scenario: 

Center to center distances between various buildings as per architectural drawings (in meters) is as follows:

Main Building to Resource Building	120 m
Main Building to Training Building	40 m
Main Building to Accounts Building	135 m
Resource Building to Training Building	125 m
Resource Building to Accounts Building	45 m
Training Building to Accounts Building	110 m

Expected number of computers in each building is as follows :

Main Building	15
Resource Building	25
Training Building	250
Accounts Building	10

(i) Suggest a cable layout of connection between the buildings. 

(ii) Suggest the most suitable place (i.e. building) to house the server of this NGO. Also provide a suitable reason for your suggestion. 

(iii) Suggest the placement of the following devices with justification: 

Repeater 

Hub/Switch 

(iv) The NGO is planning to connect its International office situated in Delhi. Which out of following wired communication links, will you suggest for very high speed connectivity? 

(i) Telephone Analog Line 

(ii) Optical Fibre 

(iii) Ethernet Cable 

Answer 1

(i)

(ii) Max. no of computers (250) in training building so the server can be placed here. 

(iii) Every building has more than 2 computers, so hub is required in every building. 

Repeaters are used if distance is greater than 70m so repeater is required between training and accounts building.

(iv) Optical fiber has the highest speed of connectivity.