IT 200 Network Configuration Model

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Southern New Hampshire University *

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IT-200

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Information Systems

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Feb 20, 2024

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IT 200 Network Configuration Model By Megan Miller IT-200-J6932 Fundamentals Info Technology 23EW6 Professor Ortiz Assignment Due on 07/16/2023 11:59PM

Defining IT Concepts and Their Importance i. IP Address and DNS IP address stands for internet protocol address. It is a numerical name given to every device connected to a network that uses the internet protocol for communications. A label would be a good way to explain it, or a name tag. It plays a critical role in identifying or being able to locate a specific device on a network. DNS stands for Domain Name System. It is a decentralized system that can translate a domain name into IP addresses. Allowing a person to gain access to websites or services by typing in an easy to remember address for example, like going to www.facebook.com so there would be no need to remember the specific IP address that is linked to that website. We can use the website address instead of using the numerical address that is associated with it. Humans can remember words better than their capacity to remember chains of numbers so this is an ideal solution to what would otherwise have been a huge inconvenience and problem with using the internet for most of us. ii. Server and Client A server is a system that can provide shared services or resources to different computers or devices that are on the same network. Designed to respond to requests such as hosting websites, managing data, running different applications especially for a business or other network related task. A client is the devices or computers that are requesting or utilizing the services that a server is providing. Clients are usually the ones that initiate contact with the server for things like accessing data or information, printing, and other resources. In a financial business environment like a bank, a whole department might be on one server with several employee computers or other devices capable of connecting by network to the server such as printers/copy machines that are connected to and using the same server accessing it through a mapped network.

iii. VPN VPN stands for virtual private network. This is a type of technology service that creates a secure and encrypted connection over a public network. Meant to establish a way to offer privacy and security for a user to be on a public network for the purpose of being able to access resources or communicate and have it remain private while being on a public network to prevent risks of proprietary or personal information from being accessible by others unintentionally VPNs are crucial for financial institutions in their efforts at preventing identity theft and preventing proprietary business information from being leaked. iv. Firewalls Firewalls are the security for networks either in the form of software or sometimes in the form of a device. They are a network’s security guard that is monitoring all the incoming and outgoing traffic on the network it’s being utilized for. They are a barrier between internal networks and external ones on the internet, applications or found in downloaded content. They examine network packets to determine if it’s safe to allow certain types of traffic based on the settings that determine the rules it will be following. They prevent unauthorized access into a business or personal network, attacks, protect data and sensitive information. v. LANs and WANs LAN stands for local area network and is confined within a small, localized area like a home, school, or business. They are used to connect computers or other resources and devices to one another so that they can share and communicate with each other. WANs stands for wide area network and is meant for a bigger area geographically than a LAN. It can span across cities or even countries. WANs connect multiple LANS or networks together to allow for long distance connectivity like LANs provide on a smaller scale.

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