2 (10 pts) You have been asked to find solutions to providing network connectivi

Question

2 (10 pts) You have been asked to find solutions to providing network connectivity for the following scenarios. Given each scenario, explain your preferred method of connectiviy and why you chose it. Assume that paying for construction to bring better connectivity is NOT an option. (a) Internet to a house in a rural area that does not have coax/cable or fiber. The house is approximately 2.5 miles from the telephone company's central office. (b) Gigabit connectivity between floors in a large commercial building. (c) Internet to a large commercial building that is 5 miles from the telephone company's central office and there is no fiber or cable available near the building (d) Internet to a house in the middle of the desert without any cable, fiber, or telephone lines to the house. The only method of communication the customer has with the outside world is a 4G LTE based smartphone (c) Internct to a large commercial building that is 1.5 miles from the telephone company's central office, where fiber, copper, and cable go to the building. The customer needs a minimum of 100 Mbps connectivity

Explanation / Answer

1) In this tyoe of scenario, we can provide Dial-up network connections enable TCP/IP communcations.

Advantage: i) This model is applicable, when the bandwidth requirement is not very high.

ii) Connections are needed to be cheaper.

Availability: Basic Internet browsing and email. Not suitable if regularly downloading or uploading large files like

music, video or pictures.

With the rapid adoption of ADSL dial up access is often only used as a secondary/ backup Internet access method

for mobile users.

You should be vary wary of this connection type due to Rogue Internet Dialler software.

ISDN

This was the main method for high speed Internet access prior to ADSL and is now no longer used.

It is similar to dial-up, ISDN establishes a connection to your service provider when you access the Internet.

However, ISDN circuits are 64-128K and fully digital.

ISDN is not easy to install and troubleshoot and requires you to have an ISDN box installed by your telephone

company.

It was used by small businesses as in addition to the ISDN line you can also use a normal telephone line at the

same time . This means you can access the Internet as well as talking on the telephone.

Monthly Cost: As Analogue dial up

Speed: 64Kbps – 128Kbps.

2) In this type of network,the speed requirement is high. So a connection with high bandwidth should be used.

LAN(Local Are Network) should be used in such cases, which consists of a collection of devices located in close

proximity e.g, an office building. connected to shared network equipment(like broadband routers or network

switches) that the devices use to communicate with each other and with the outside networks.

Key technologies: Most modern wired LANs utilize Ethernet while wireless local networks generally use Wi-Fi.

Older wired networks used Ethernet but also some alternatives including Token Ring and FDDI.Key technologies:

Most modern wired LANs utilize Ethernet while wireless local networks generally use Wi-Fi. Older wired networks

used Ethernet but also some alternatives including Token Ring and FDDI.

3) Wireless.   Wireless, or Wi-Fi, as the name suggests, does not use telephone lines or cables to connect to the

internet. Instead, it uses radio frequency. Wireless is also an always on connection and it can be accessed from

just about anywhere. Wireless networks are growing in coverage areas by the minute so when I mean access from

just about anywhere, I really mean it. Speeds will vary, and the range is between 5 Mbps to 20 Mbps.

Satellite. Satellite accesses the internet via a satellite in Earth’s orbit. The enormous distance that a signal

travels from earth to satellite and back again, provides a delayed connection compared to cable and DSL. Satellite

connection speeds are around 512K to 2.0 Mbps.

4) The goal of 4G is to achieve peak mobile speeds of 100 Mbps but the reality is about 21 Mbps currently.

With the advent of full-featured smartphones and tablet devices, many people conduct their online activities through

wireless access. These services can reach speeds that rival or equal traditional wired broadband, including DSL

and cable connections. Gaining access to these networks requires a location close enough to a cellular service

tower to provide enough signal to make a connection. You can plug a USB modem device into a notebook

computer to access wireless service, or connect your phone to your computer to share the bandwidth. This sharing

process, called tethering, typically involves paying additional fees to the provider of your mobile phone service.

4G network can provide download speeds of upto 1Gbps.

4G network are designed to carry data using IP protocol.

5) Coaxial cable network is best suited for this type of scenario. Coaxial cable network offers speeds upto 1Gbps.

Cable connects you to the Internet through a coaxial cable usually using the same line as your TV service.

Cable connections offer very high connection speeds, but the connection may be shared with other users.

You can use optic fibers also, but they are expensive than coaxial cable netwrok and are difficult to install.

Speeds can be radically boosted in short distance applications for optic fiber cables, such as in data centers,

where cables are generally shorter and intertwined, but research continues into extending this increase with

minimal signal degradation over greater distances, when referring to the percentage of light lost per kilometre of

fibre.

THANK YOU

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