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Questions
Explain the following device:
Repeater
Explain Repeater.
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Solution
- A repeater is a hardware device mainly used in Ethernet networks to increase the distance of transmission.
- It regenerates and boosts the signal so that it can travel from one Ethernet segment to another. The figure shows a network setup using repeaters.
- In a building, a vertical backbone cable is used, and repeaters connect Ethernet segments on each floor to this backbone.
- For reliable communication, there should not be more than two repeaters between any two Ethernet workstations.
- The major drawback of a repeater is that it amplifies noise along with the signal.
- Repeaters require a separate power supply to operate.
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RELATED QUESTIONS
Hi-Standard Tech Traj.ning Ltd. is a Mumbai based organization which is expanding its office set-up to Chennai. At Chennai office compound, they are planning to have 3 different blocks for Admin, Training and Accounts related activities. Each block has a number of computers, which are required to be connected in a network for communication, data and resource sharing.
As a network consultant, you have to suggest the best network related solutions for them for issues/problems raised by them in (i) to (iv), as per the distances between various blocks/locations and other given parameters.
Shortest differences between various blocks/locations:
| Admin Block to Accounts Block | 300 Metres |
| Accounts Block to Training Block | 150 Metres |
| Admin Block to Training Block | 200 Metres |
| MUMBAI Head Office to CHENNAI Office | 1300 Km |
The number of computers installed at various blocks is as follows:
| Training Block | 150 |
| Accounts Block | 30 |
| Admin Block | 40 |
1) Suggest the most appropriate block/location to house the SERVER in the CHENNAI office (out of the 3 blocks) to get the best and effective connectivity. Justify your answer.
2) Suggest the best-wired medium and draw the cable layout (Block to Block) to efficiently connect various blocks within the CHENNAI office compound.
3) Suggest a device/software and its placement that would provide data security for the entire network of the CHENNAI office.
4) Suggest a device and the protocol that shall be needed to provide wireless Internet access to all smartphone/laptop users in the CHENNAI office
Hub is a :
A ______ is a software program that is designed to copy itself from one computer to another, without human intervention.
Set of rules that decide how computers and other devices connect with each other through cables in a Local Area Network is called ______.
Which of the following is true for RJ - 45 connector?
What is the entry and exit point of a network?
What is true for Modems?
NIC stands for ______.
Explain the following device:
NIC
The modem at the sender’s computer end acts as a ______.
