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Wide Area Networking

In: Computers and Technology

Submitted By girlfree
Words 743
Pages 3
Cecilia Lopez
Instructor: Ms. Ybarra
Intro to Networking NT1210
Wide-Area Networking
Unit 7 Lab 7.1: Distance Considerations
Exercise 7.1.1
It’s impractical for an organization to own the entirety of a WAN because it would be very expensive for the company to run all the lines necessary and to pay for all the labor to keep the WAN up and running. It is less expensive for an organization to own a LAN so that’s why it is favorable for them to maintain ownership of it.
Exercise 7.1.2
The further a signal is transmitted on a LAN lessens the strength of the signal. To transmit signals over a long distance access points are required which also decreases signal strength.
Exercise 7.1.3 Media | Infrastructure | Summary | UTP | Phone lines | Uses a customized infrastructure for performing two jobs, one being phone and the other being data transfer | Coaxial | Television cable | This type of media is used for transmission of television from a company to a customers house. | Fiber-optic | Cellular, Broadband | Uses a customized infrastructure to run dedicated connections; this is a costly option | Electric power lines | Electricity, Broadband | This type of media can be used with Broadband over Power Lines (BPL), making use of the extensive infrastructure in place already. |

Exercise 7.1.4 Media | Summary | Satellite | Transmits from ground to space then back to where the transmission is required to be sent | WiMAX (Worldwide Interoperability for Microwave Access) | Used for transmitting a wireless network that could be many miles wide. | HSPA+ (Evolved High-Speed Packet Access) | Used for telecom companies to transfer from towers at 4G speeds. | Radio frequency | Uses radio waves to transmit information world-wide |

Lab 7.1 Review 1. Coaxial cables are used for long-distance communication in a WAN such as satellite television. The transmission reaches the satellite and is transmitted down to earth in which the signal bounces off the dish on a customer’s home. The transmission is then sent through low noise block with an integrated feedhorn which sends the information down coaxial cables that go into the customer home to give them television. 2. The transmission is sent out wirelessly into the air and down into a WLAN.
Exercise 7.2.1
Limitations of using a dedicated leased line is speeds at which is transmitted through the lines. The company that supplies the communication sells different speeds and its up to the customer to choose which speed they want.
Exercise 7.2.2
The benefits to using a partial-mesh topology is that if one line in the topology goes down you are still able to send data to wherever it is destined to go.
Exercise 7.2.3
The benefits of a Hub and Spoke WAN topology is that it is less expensive to create than a partial-mesh or a full-mesh topology. It is less desirable because if one of the lines goes down then the network is not connected and you are unable to send data.

Exercise 7.2.4

Exercise 7.2 Review 1. PPP- from one point to another, rather than broadcast. A control protocol is a protocol that runs atop the Point-to-Point Protocol (PPP) and that is used to negotiate options for a network layer protocol running atop PPP. 2.
Exercise 7.3.1
The topology that I chose to use for the WAN is a partial mesh with the central location being the Headquarters building. I think that this is the best topology for this company because if one line goes down then the company is still going to be able to communicate with each other and keep the company running.
Exercise 7.3.2 One option would be to use a satellite to use for a connection and another would be using a dedicated leased line. I would use a dedicated leased line in this situation. The transmission of data would be faster and more direct than using a satellite.
Lab 7.3 Review 1. Its cost effective because your only using 2 locations as a LAN and using the internet to transmit your data. 2. If none of the connections are mission critical then a Hub-and-Spoke WAN topology would be the best one to use. It is the least expensive option to use. The most effective choice would be a full-mesh topology because the network would be completely connected even if one line went down.

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