Types Of Network Topologies Computer Science Essay

The coach topology connects every computing machine on the web into impressive called the section bole. A coach is typically referred to a overseas telegram that connects terminal to stop and this is use to direct out the signals from one terminal to the other terminal. Each terminal a eradicator is placed so that it understand in which track the information is going and besides the eradicator is used to take in the signals. The coach is careful to be an active web because the computing machines are largely independent on the signal that is being transmitted.

Star Topology is common type of web topology that is usage in place and office. Star Topology there is a cardinal connexion point called the hub which is a computing machine hub or sometimes merely a switch. Star web is use the UTP or the unshielded distorted brace overseas telegram. Another common overseas telegram that is used in star webs is the RJ45 or the Ethernet overseas telegrams. Star Network the whole web is reliant on the hub so if the whole web is non working so there could be a job with the hub. This attribute make it simple to trouble-shoot by offering a individual point for mistake connexion ad at the same clip the dependance is besides really high on that individual point.

In this undertaking we will look into internet connexion required for Fire Department but we read Fire Department all necessary information in scenario. Chiefly this Fire Department coverage country 70 square kilometres and Fire Department control Centre has three accountants on responsibility at a clip who receive call from the populace and other exigency services. Control halfway receive information sends inside informations to a pressman so publish transcript provide fire officer so fire officer leaves the edifice and go to the incident.

So we thought that control centre exigency information receives and print in this whole work we chose Virtual private Network ( VPN ) . Virtual private Network ( VPN ) usage in public web but it is use for in private ain work.

When fire section all subdivisions connect in VPN web so headquarter and command centre and civilians staff country all necessary information direct any subdivision is possible at any clip so fire section all work will be really easy. Fire section pressman will add in VPN web so command centre all public intelligence and fire officer can be print and go to the incident.

I: Virtual_private_network_files330px-Virtual_Private_Network_overview.png

Mention

Own sentiment

B. Suitable connexion velocity

1 mbps connexion velocity suited for these demands because fire section merely three religional offices and this office merely use informations communicating and exigency incident location information receive and print by in this VPN web and exigency file shear subdivision to subdivision and when need distant entree each subdivision. So 1 mbps connexion velocity is sufficient for Fire Department.

Mention

Own sentiment

C. Internet service supplier ( ISP ) in my state

1. Asia cyberspace limited

Asia cyberspace limited is Internet Service Provider who provides high quality communications services to many office and places.

Asia cyberspace limited offer

Corporate, SME, Residential & A ; AA Reseller ( Fiber to the last stat mi ) .

Corporate Virtual Private Network ( VPN ) solutions.

Server collocation and Bandwidth Service.

Mention

http//www.asianetbd.com

2. Aftab IT Limited

Aftab IT Limited is one of the top Internet and Intranet Service Provider in Bangladesh. Aftab IT can offer its clients the needed degree of services that have stableness, security, dependability and web coverage.

Aftab IT Limited offer

Corporate Broadband Solution

Dial Up Internet Solution

VPN Solution

Mention

http//www.aftabitlimitedbd.com

3. BDCOM limited

BDCOM is an internet service supplier in our state.

BDCOM limited offer

Shared Bandwidth

Dedicated Bandwidth

Leased Bandwidth

On-demand Bandwidth

Mention

http//www.bdcom.com

D. Recommendation on ISP and monetary value charged

Asia cyberspace is a really big cyberspace service supplier ( ISP ) in our state and their installations and service is high-quality and all clip proficient supports and service charged is better from other company.

Monetary value charged

Service supplier

Time

Speed

Download/upload

Taka

Dollar

continuance

installing

Asia cyberspace

24Hours

1MB

896/896kbps

2550

$ 25

Per Month

Free

Aftab

24Hours

1MB

896/896kbps

2640

$ 26

Per Month

Free

BDCOM

24Hours

1MB

896/896kbps

2700

$ 27

Per Month

Free