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प्रश्न
Explain the following device:
Repeater
उत्तर
A repeater is an analog device that works with signals on the cables to which it is connected. The weakened signal appearing on the cable is regenerated and put back on the cable by a repeater.
APPEARS IN
संबंधित प्रश्न
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
What does Router do in a network?
Hub is a :
Which of the following is not a network device?
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.
A switch drops noisy signals and asks sender to resend.
What is the entry and exit point of a network?
Which of the following is not a network device?
What is true for Modems?
NIC stands for ______.
______ network device is known as an intelligent hub.
Mention any two main advantages of using a network of computing devices.
How is tree topology different from bus topology?
Explain the following device:
Switch
Explain the following device:
Gateway
Explain the following device:
Router
Explain the following device:
NIC
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
Quickdev, an IT based firm, located in Delhi is planning to set up network for its four branches within a city with its Marketing department in Kanpur. As a network professional, give solution to the questions, after going through the branches locations and other details which are given below:
| DELHI BRANCH | |
| BRANCH A | BRANCH B |
| BRANCH C | BRANCH D |
| KANPUR BRANCH |
| MARKETING DEPT. |
Distance between various branches is a follows:
| Branch | Distance |
| Branch A to Branch B | 40 m |
| Branch A to Branch C | 80 m |
| Branch A to Branch D | 65 m |
| Branch B to Branch C | 30 m |
| Branch B to Branch D | 35 m |
| Delhi Branch to Kanpur | 300 km |
Number of computers in each of the branches:
| Branch | Number of Computers |
| Branch A | 15 |
| Branch B | 25 |
| Branch C | 40 |
| Branch D | 115 |
- Suggest the most suitable place to install the server for the Delhi branch with a suitable reason.
- Suggest an ideal layout for connecting all these branches within Delhi.
- Which device will you suggest, that should be placed in each of these branches to efficiently connect all the computers within these branches?
- Delhi firm is planning to connect to its Marketing department in Kanpur which is approximately 300 km away. Which type of network out of LAN, WAN, or MAN will be formed? Justify your answer.
- Suggest a protocol that shall be needed to provide help for transferring of files between Delhi and Kanpur branch.
The modem at the sender’s computer end acts as a ______.
