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Question
Explain the following device:
Switch
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Solution
A switch is a networking device, that plays a central role in a Local Area Network (LAN). Like a hub, a network switch is used to connect multiple computers or communicating devices.
When data arrives, the switch extracts the destination address from the data packet and looks it up in a table to see where to send the packet. Thus, it sends signals to only selected devices instead of sending them to all. It can forward multiple packets at the same time. A switch does not forward signals which are noisy or corrupted. It drops such signals and asks the sender to resend them.
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Prime Computer Services Ltd. is an international educational organization. It is planning to set up its India campus in Mumbai with its head office in Delhi. The Mumbai office campus has four main buildings-ADMIN, ACCOUNTS, EXAMINATION, and RESULT.
You as a network expert have to suggest the best network-related solutions for the problems given below, keeping in mind the distances between the buildings and other given parameters.
Shortest distances between various buildings:
| ADMIN TO ACCOUNTS | 55 m |
| ADMIN TO EXAMINATION | 90 m |
| ADMIN TO RESULT | 50 m |
| ACCOUNTS TO EXAMINATION | 55 m |
| ACCOUNTS TO RESULT | 50 m |
| EXAMINATION TO RESULT | 45 m |
| DELHI Head Office to MUMBAI campus | 2150 m |
The number of computers installed at various buildings is as follows:
| ADMIN | 110 |
| ACCOUNTS | 75 |
| EXAMINATION | 40 |
| RESULT | 12 |
| DELHI HEAD OFFICE | 20 |
- Suggest the most appropriate location of the server inside the MUMBAI campus (out of the four buildings) to get the best connectivity for the maximum number of computers. Justify your answer.
- Suggest and draw cable layouts to efficiently connect various buildings within the MUMBAI campus for wired connectivity.
- Which networking device will you suggest to be procured by the company to interconnect all the computers of various buildings of the MUMBAI campus?
- The company is planning to get its website designed which will allow students to see their results after registering themselves on its server. Out of the static or dynamic, which type of website will you suggest?
- Which of the following will you suggest to establish online face-to-face communication between the people in the ADMIN office of the Mumbai campus and the Delhi head office?
a) Cable TV
b) Email
c) Video conferencing
d) Text chat
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