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It

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What is a web mail?
Webmail are web-based email accounts. These are usually free email accounts that are operated from a website. Examples include Hotmail, GMail and Yahoo Mail.

Webmail allows the users to access their emails as long as they have access to an Internet connection and a web browser. This also means that the user cannot read an old email or draft a new email offline.
How does it work?
Webmail is really IMP, the Internet Messaging Program. ... Webmail works like this: Your Web browser connects to webmail after you authenticate yourself using your UT-EID. You are then connected to the IMP, and can choose which IMAP server to connect to.

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Integrated Services Routers (ISRs) are fixed, high-performance routers that are easy to deploy and manage. Small yet powerful, they provide highly secure broadband, Metro Ethernet, and wireless LAN connectivity.

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is a data table stored in a router or a networked computer that lists the routes to particular network destinations, and in some cases, metrics (distances) associated with those routes

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Explain the difference between the terms 'internet' and 'world wide web'
The internet is millions of computers all interconnected  to each other all around the world, by using web protocols.
The world wide web is a collection of online content formatted in HTML and accessed by certain web protocols such as FTP, HTTP and HTTPS

Create a brief timeline of the internet:
- In 1989 the world wide web was made by Tim burners lee
- In 1998 the popular search engine known as Google was created by Larry Page
- In  2003 popular telecommunication application known as Skype was made
- In 2005 popular video uploading site YouTube was made
- In 2007 popular email service Gmail was created
These were the main components of the internet.

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What Is an Email Client?
An email client is a program that lives on your computer and lets you send or receive emails. Typical examples include Outlook and Windows Live Mail.

How does an email client work?
Typically, the client downloads messages from the server for local use (or for use within a browser) and uploads messages to the server for delivery to its recipients

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It acts as a virtual post office for incoming and outgoing mails. It receives and distributes the mail.

What is POP protocol?
is a type of computer networking and Internet standard protocol that extracts and retrieves email from a remote mail server for access by the host machine.

What is IMAP and SMTP?
IMAP manages and retrieves mails from the server.

SMTP is responsible for sending mail whether it is from a client or between servers.

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pc and telephone internet connection

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What is a server?  What Is the Purpose of a Computer Server? A server is a computer used in a network and which provides a service to a client. Servers usually have more processing power, memory and storage than client computers.

Differences:

Servers are designed to run 24/7 even in the case of failures. They have redundand components - two power supplies, pairs of disks, double network cards etc. You can replace components while the server is in operation.

Servers have better cooling - lots of fans which can run pretty loud if aggravated.

Servers usually have better quality components than consumer hardware, which is why they are more expensive.

Servers support plugging more memory, CPUs and disks than ordinary computers.

Servers don’t need graphics or sound and usually don’t have it. On the other hand, graphics and sound is very important for PCs and laptops.

Requirements.

ItemWeb server (minimal)Web server (recommended)
Processor | 1,6 GHz CPU | 2 x 1,6 GHz CPU
RAM | 1,75 GB RAM | 3,5 GB RAM

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What is a router and what does it do?
A router is a hardware device use in within computer networks, to forwards and receive data packets from computer devices either based on MAC or IP addresses within the packet header.

What is a routing table?
A routing table is a virtual table which stores a list of all the destination information for where a data packet should go, this information includes a IP, gateway, Sub-net mask etc.

What is a integrated service router (IRS)?
A IRS router is a router created by Cisco which had additional features than a normal router, some features include video streaming as well as on-demand support. as well as this certain features such as network performance and energy management by the router has been fixed and is better than previous generations of routers.

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1. Shared Hosting

Pros

The biggest advantage of this option is that you also share the cost of server with many people. If the hosting provider can put several hundred or thousand clients all on one server, it allows them to spread the operating cost among many parties.

That’s also why shared hosting is the most affordable. You can have it for as cheap as $2/month with the average cost in the $5-$10/month range. Great for people with limited funds and those just starting out.

Aside from that, with a shared hosting account you are usually completely taken care of in terms of setup. There is very little to configure so you can concentrate completely on building your website.
2. VPS Hosting

Pros

VPS is a lot more reliable and stable than shared hosting. First of all, is usually limited to 10-20 websites per server. This decreases the demand on the server in itself.

However, the real improvement is that all resources are split evenly and no website is allowed to exceed its lot. Once you hit the limit of what is assigned to you, your site may go down but the others will remain stable.

This is achieved via virtual machines that create a separation within the server. This simple addition mitigates most of the bad neighbor effect.

Another big benefit of VPS servers is that they provide more flexibility and allow you to customize your environment. On shared hosts this isn’t possible because it would change everyone else’s setup as well. Since your account is contained within a virtual machine you can make changes without affecting others.

Lastly, VPS is scalable. Since you are running a virtual machine which takes some percentage of the resources available on the server, increasing what is available to you is no problem at all. This is a great comfort to business owners who expect their sites to grow and flourish.

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Proxy
A proxy server is a dedicated computer or a software system running on a computer that acts as an intermediary between an endpoint device, such as a computer, and another server from which a user or client is requesting a service. The proxy server may exist in the same machine as a firewall server or it may be on a separate server, which forwards requests through the firewall.

In the enterprise, a proxy server is used to facilitate security, administrative control or caching services, among other purposes. In a personal computing context, proxy servers are used to enable user privacyand anonymous surfing. Proxy servers can also be used for the opposite purpose: To monitor traffic and undermine user privacy.
Load balancing refers to efficiently distributing incoming network traffic across a group of backendservers, also known as a server farm or server pool.

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There is two different options of hosting a website, The first one is by shearing the host, with chis the easier and simple to do, and the other one is to by VPS Hosting.

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1. A web host, or web hosting service provider, is a business that provides the technologies and services needed for the website or webpage to be viewed in the Internet. Websites are hosted, or stored, on special computers called servers. ... Most hostingcompanies require that you own your domain in order to host with them.

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Hyper Text Transfer Protocol
TTP means H yper T ext T ransfer P rotocol. HTTP is the underlying protocol used by the World Wide Web and this protocol defines how messages are formatted and transmitted, and what actions Web servers and browsers should take in response to various commands.

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Web 1.0 refers to the first stage in the World Wide Web, which was entirely made up of static web pages connected by hyperlinks.

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1990 - Birth of World wide web
1993 - Launched Log files
1995 - Creation of Analog
1996 - Web-counter first hosted hit counters
1997 - Javascript Tagging
1999 - Launch of Coremetrics
2004 - Web Analytics Association is founded
2005 - Google buys urchin osftware
2006 - In-page analytics are born

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What is the role of an Internet Service Providers

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What is the role of an Internet Service Providers

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is an organization that provides services for accessing, using, or participating in the Internet. Internet service providersmay be organized in various forms, such as commercial, community-owned, non-profit, or otherwise privately owned.
Examples of Internet Service Providers
Sky
BT Sports
Virgin Media
Range of Prices Charged?
£20-£50

Range of download speeds available?
8Mbps-900Mbps

Flowchart of connection between user and Internet

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Explain the difference between the terms internet and the www

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Explain the difference between the terms internet and the www

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The internet is a network used to connect millions of computers together globally whereas www is used for accessing information over the medium of the internet.