Question

You have been hired to upgrade a network of 200 computers and four servers on a single LAN are connected by several Hubs. This long-overdue upgrade is necessary because of poor network response time caused by a lot of collisions occurring during long file transfers between clients and servers. How do you recommend upgrading this network? What interconnecting devices will you use, and what benefit will you get from using these devices? Write a short memo describing the upgrade and, include a drawing of the new network design.

please answer in 30 mints and the subject is data commnication and network.

Answer 1

I could enable broadcast strom protection on the switches, or I could use wireshark to identify the source of broadcast packets in case it's one or a few sources that are sending those packets unneccessarily.

You need to know various technologies such as:

1. Physical versus logical topology: Physical is how devices are actually connected with wires and networking equipment.Logical is how things appear to be connected to the network user.

2.Bus topology: Most commonly used,every node connects to a central network device like hub/switch/computer. Typically rj45 cables connect the computers to central device

3. Ring topology: Device connections from a circular path where each computer is connected to its two neighbours. Data goes from computer to computer until it reaches its destination. Can be bad if one computer goes down and link is broken, especially if it's unidirectional.

4.Ethernet and CSMA/CD : CSMA/CD is Carrier Sense Multiple Access Collision is what ethernet uses to handle half-duplex mode of transmission.Computers listen for ongoing traffic before they can transmit. They cannot tranmit and receive at same time. This is designed to reduce data collision.Each computer intermittently tries to send data after the user tells the computer to do so and when there is no traffic it will complete the sending of a frame. This only will be used in a logical bus technology(connected to a hub or sharing an ethernet connection with another computer).If both computers are individually connected to a switch,they would instead connect at full-duplex as the swutch would handle tranmission from multiple sources of data at the same time.