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प्रश्न
Explain the following device:
Repeater
Explain Repeater.
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उत्तर
- 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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संबंधित प्रश्न
Differentiate between packet switching over message switching
Hub is a :
Meerut school in Meerut is starting up the network between its different wings, There are four buildings named S, J, A and H. The distance between various buildings is as follows:
| A to S | 200m |
| A to J | 150m |
| A to H | 50m |
| S to J | 250m |
| S to H | 350m |
| J to H | 350m |
Numbers of computers in each Building
| S | 130 |
| J | 80 |
| A | 160 |
| H | 50 |
The company wants internet accessibility in all the blocks. The suitable and cost-effective technology for that would be:
Which of the following device is connected to both the source and destination computer?
A ______ is a software program that is designed to copy itself from one computer to another, without human intervention.
The weakened signal appearing on the cable is regenerated and put back on the cable by a ______.
Set of rules that decide how computers and other devices connect with each other through cables in a Local Area Network is called ______.
______ is also known as NIC card.
Which of the following is true for RJ - 45 connector?
Any organization that provides services for accessing internet are called ______.
______ network device connect different devices through wires.
What is the entry and exit point of a network?
What is true for Modems?
NIC stands for ______.
______ network device is known as an intelligent hub.
A device that is used to connect a number of Lans is ______.
Mention any two main advantages of using a network of computing devices.
Write down the names of a few commonly used networking devices.
How is tree topology different from bus topology?
What do you mean by a modem? Why is it used?
Explain the following device:
Switch
Explain the following device:
Gateway
Explain the following device:
Router
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
The modem at the sender’s computer end acts as a ______.
