NT1210 Lab 2.3 Network types and Topolgies
Briefly define LAN, MAN, PAN, and WAN. What is the critical distinction for these networks?
LAN=Local Area Network. Which is a computer network that links devices within a building or group of adjacent buildings
MAN=Short for Metropolitan Area Network, a data network designed for a town or city. In terms of geographic breadth, MANs are larger than local-area networks (LANs), but smaller than wide-area networks (WANs). MANs are usually characterized by very high-speed connections using fiber optical cable or other digital media.
WAN=Wide Area Network. A computer network that spans a relatively large geographical area. ...view middle of the document...
2. B-A=3 hops
3. Two additional links would be between C and D. By adding a new node E it would increase the amount of hops needed to send messages.
Using the bus topology from Figure 2-11, how many actual messages would it take to send a message from A to D? How many actual messages would it take to send a message from D to A? How many additional links would be required to add a new node E between C and B? How would the added node affect the network?
1. One message would be sent from A-D and D-A. The Bus Topology uses one central cable to connect A-D and vice versa.
2. A extra link would only be needed to add node E. The only affect node E would have is being able to seeing messages sent.
Using the star topology in Figure 2-12, consider the number of actual messages necessary to send a message from A to B. How many messages are sent if the central device is a hub when A sends a message to B? How many messages are sent if the central device is a switch when A sends a message to B? What effect does adding a new node E between C and D have on the network?
It would take two messages to be sent from A to B. Now if a central device called hub is on the network it would take two messages to get from A to B. Using a switch it will take one message to get to A-B. By adding E node between C and D creates a bus between C and D. Thus creating a Hybrid Star topology in the network.
Using the mesh topology shown in Figure 2-13, how many actual messages are necessary to send a message from A to D? How many actual messages are needed to send a message from A to B? How many links would be required to add a new node E between C and D? How many links would be required to add a new node F if E is already added?