Specialist Dental Services (SDS) has an existing Token ring infrastructural that uses IEEE 802.5 standard, meaning that it is a local area network in which all computers are liked in ring or start topology. A token (special bit pattern that travels around the circle, computer catches token to send a message, after attaching massage token is then continues traveling around the network) design is used to prevent collision of date between messages that were send at the same time. In the token ring infrastructure data rate transfer is 4 to 16 Mbps, with shielded and unshielded twisted-pair cabling of 1,2,3 IBM types to wire a token network. An Ethernet is different, since whenever any computer needs to send data, it does not need a token to send a message, any computer can send data at any time.
Encryption Security: Hard drive encryption: Without hard drive encryption if a hard drive becomes lost all the information on the hard drive would be viewable by plugging it into another computer. Particularly with a peer to peer network all the other computers on the network will be available if the hacker can access one. Wireless encryption: Wireless encryption is not as secure as a physical network, especially; if that wireless encryption is going to be the main way that strangers will be connecting to the network. All wireless protocols need to be at least WPA2 because of how many tools are out there and older models can be cracked.
Wifi WPS: It stands for “Wi-Fi Protected Setup” and provides simplified mechanisms to configure secure wireless
Which is also known as the core layer campus backbone network. Essentially everyone on campus will have internet connectivity and connect to any server or printer located in any of the other buildings. The reason behind this is the data center is the home of the database servers as well as mail servers. Any devices for example printers connected to the network users will be able to have access to them. If users needed to access the network from home or other features we can add VPN to the network.
This means that within its subnetwork (the switch it is connected to) it would be able to connect to any other host connected to its local switch, as the subnet mask means it could connect to any host with the IP address 10.10.1.x, meaning that it will NOT go through the lab-a router if the IP is within that range. If we change the subnet mask of the circled subnet to /16, or 255.255.0.0, this would effectively disable the functionality of the host. This is because now the host will attempt to connect to all the hosts with 10.10.x.x within its own subnet and avoid using the lab-a router. This will break the connectivity of the circled host because all the other hosts that it could connect to are defined as 10.10.2.x, and the subnet mask of /16 means it will not go through the default gateway/router in order to access these
It offers a secure fitting together between internet browsers and websites, letting you to communicate secretive data online. Physical Layout • Topologies; topology can be measured as a computer-generated nature or construction of a system. This shape does not agree to the real physical plan of the policies on the computer network. • Ring; basically in a ring system each device (workplace, waiter, and copier) is related to two other devices, this systems a ring for the signs to travel around. Each packet of data on the network trips in one way and each device collects each box in turn until the journey 's end device receives it.
In the first layer, a single neron is used to indicate whether the network is activated or not. This layer contains, Vol. 1, No. 1, Article . Publication date: January 2018.
1.3 How do local area networks (LANs) differ from wide area networks (WANs) and backbone networks (BNs) Local area networks are limited within an organization Wide area networks extend over a large geographical distance and may be privately owned or rented Backbone network are the part of network infrastructure that feeds the connected networks 1.8 Describe the seven layers in the OSI network model and what they do. Application – this layer is specific to applications and provides services such as email, network software services and file transfers Presentation - In this layer, the data is formatted in a schema that network understands, and also manages data encryption and decryption Session – this layer establishes and controls the data communication between
Network internet layer This can be used to set the border line of what people can think of about the network. With this layer it will be able to interconnect with networks and will decide how the layers can do this process. It will be able to can concentrate and determine how the data will get from one remote network to the computer. Also it will take care with devices which are local. This is mainly tasked to take care of is routing which allows data to be moved the data across the series of networks which are connected.
IP addresses allow network resources to be reached through a network interface. If one computer wants to communicate with another computer,
Sharing Internet Access: within a computer network learners are able to access the internet at once. Speed: Using a network is a faster way for sharing and transferring files. Without a network, files are shared by replicating them to a floppy disk. Cost: Networkable versions of many popular software programmes are available at significant savings compared to buying individual licensed copies. It also allows easier upgrading of the program.
You leave your garbage in bags on the curbside, and a truck comes and transports it to some invisible place. When you're in danger, you call for the police. Hot water pours from faucets. Lift a receiver or press a button on a telephone, and you can speak to anyone. All the information in the world is on the Internet, and the Internet is all around you, drifting through the air like pollen on a summer breeze.
It acts as proxy from
Often, many organisations use VPN to communicate across many locations. For example, a big company has many offices in different cities and they probably need to send data to the different places via the internet. Therefore, to keep the data secure, they probably set up a VPN with an encrypted connection so that unauthorised cannot access the data. Moreover, each employee might have a VPN account with their business or company, so it 's help them to connect to their office computer from home or other places. It is very helpful for the travellers or business that they can access any kind of office data from their laptop.
The Novel Fahrenheit 451 by Ray Bradbury, depicts a society in which conformity and obedience are of great value. Bradbury wanted to illustrate the overall importance of conformity in the novel through the idea and practice of censorship. Bradbury also wanted to illustrate the overall importance of reading and thinking freely in a time frame in which the value of reading was quickly diminishing through new technological advances. This dystopian society was successfully accomplishing this concept through book burning, the reason being that books have become such a fundamental part of human culture throughout the world and books enable knowledge and the lack of knowledge creates ignorance therefore making people easier to manipulate.
