Web Fundamentals
1. Know web architecture and components
1.1 list the hardware and software components which enable the internet and web
Web hosting company (server)
A web hosting company allows business big and small, also individuals to make their websites accessible on the internet over the WWW (World Wide Web) hosting companies provide space on a server, this can be rented space or the actual server itself can be owned by the client. Everything that is stored at a data centre sits on a server, a server is basically a powerful pc that is capable of storing different data, or websites, that are then accessible through the network of the internet.
NIC
A NIC or network interface controller is a physical component that connects a computer to a computer network. The NIC allows for communication between devices using a specific physical and data layer standard such as Ethernet, Fibre channel and Wi-Fi. These provide the basis for a full protocol stack, which allow communication between computers on the same local area network (LAN) or on large scale networks using protocols such as internet protocol (IP) The NIC can be both a physical and data link layer device, as it provides physical access to a network using cables and uses MAC addresses that are uniquely assigned to network interfaces, for devices to recognise one another.
Switch
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Switches are multilayer and can sit on the data link layer (layer 2) when processing and forwarding data, also on the network layer (layer 3) by using IP addresses when forwarding
A network interface card is already present in the computers. The purpose of the network card is to enable the computers to connect together using a protocol in order to transfer packets of data. In order to connect the computers, a form of connection is required that links the computers. In this case the form of connection used will be ethernet (Science - Opposing Views, 2014).
A web server is a PC that opens pages on a browser on request. It sends the web address of the page that has been requested to the web browser. They have an IP address and possibly domains and are essential for an ecommerce because ecommerce is online and a web server is what you need to surf the web.
Web hosting services – this is where a user will buy a certain amount of storage space on a company’s network, which will then be visible to the public through a IP address, and store their website files so a third user can visit the website. This allows users to view the website by downloading packets of information.
Web Server: A webserver is a Hardware device used to host an eCommerce website. The server supports the entire content of the website such as HTML files, Data bases and Image Files. Web Servers will run on operating systems such as Windows or Linux and will use web server software to manage access requests to the website. Webservers are similar to PC’s however they have faster processors and more memory making it much more powerful.
Every Computer that connects to a network must have a Network Interface Card (NIC). Most new Computers have them built into the motherboard. It has one or sometimes more RJ45 socket(s) that connect to a modem. The older and deprecated version used to have RJ11 sockets to connect to the network. Due to it being extremely vulnerable to phreaking and war-dialing, it has now been replaced with
NIC - A network interface controller (NIC, also known as a network interface card, network adapter, LAN adapter, and by similar terms) is a computer hardware component that connects a computer to a computer network
Ethernet is typically the technology that is used to allow computers locally to communicate with one another. Computers that are close to each other they are connected by Ethernet.
A network interface card or a NIC is a circuit board or card you can install in your computer so that it can be connected to a network. It allows
1. How does the abstraction of the physical layer facilitate interoperability across networks using different types of physical wires?
This assignment will be mainly about network components and how do they operate, what are their functions and what are their flaws.
because I would love to meet and welcome the new students onto our wonderful campus. I remember walking into Cupertino Middle School as a fresh sixth grader, being very nervous during WEB day especially because I did not know anybody. However, I would like to make the experience even more fun and exciting for all the new students as Cupertino Middle will be their home for the next few years. I would want every new student to feel welcomed into our friendly school, being directed with a batch of social leaders. I would also love to help them get along their way during the school year so they won’t feel left out or alone.
12. A TCP/IP network includes an Ethernet LAN with 10 PCs uses a LAN switch. PC1 sends data intended for an app running on PC2. Which of the following mechanisms does Ethernet define so that PC2 receives and processes the data? The Ethernet header lists PC2’s MAC address so that PC2 will realize that the data is meant for PC2
layer 1 | Hubs, repeaters, network adapters, Parallel SCSI buses. Various physical-layer Ethernet incorporates both this layer and the data-link layer. Token ring, FDDI, and IEEE 802.11. | - |
For many Packer students, the internet filters on their laptops are a complete mystery. A search or website is blocked, and the reasoning and technology behind it is generally completely unknown. Recently, there’s been a shift in the packer communities internet access, which has been equally as misunderstood yet substantially more jarring to the average student. Director of technology Jim Anderson wants to clear up some of the confusion surrounding the recent changes, saying “It’s not a change in policy it’s a change in technology, and when we change the web filter solutions that we use for the school we change manufacturers basically, and different manufacturers use different algorithms and different processes for categorizing websites… One
Communication--it is a fundamental part of our everyday lives. It characterizes who we are, what we do, and how we relate to others in society. It is a very powerful tool that holds many different uses for our basic needs and survival. At a very simplistic level, it is key in attaining our very basic needs for survival. In that respect, it is key in achieving all needs in Maslows hierarchy. Its uses and possibilities endless.