PPDIOO Life Cycle The network life cycle is an important set of processes and standards during a network development project. There are different methodologies when developing a network; however, I am going to focus on the Cisco standard known as the PPIDOO model (Wilkins, 2011). This model is a powerful methodology for the design, development, and implementation of networking solutions (National Institute of Standards and Technology, 2009). The reason this model is so powerful is that it describes
Home Networks Home networks are common but may be difficult to setup and maintain. The difficulty users experience in setting up and maintaining their home network is challenging because of the numerous security threats that can exploit poorly configured and maintained network security (Ho et al, 2010). Users generally do not understand the normal encryption mechanism within wireless routers and access points. Additionally, users utilize weak security configuration within their wireless networks from
Network Security In today’s world, with so many ways to gain unauthorized access to someone’s computer system, network security is very important. Almost every company has been a victim of a virus attack, hackers, or some other form of unauthorized access to their network. In this paper, I will discuss various methods that those who want this access use and ways they can be prevented. Many people feel that because they use passwords their files are secure and can’t be hacked. They unknowingly
Telecommunications network at AMS Businesses of today need more connectivity than ever. I am going to bring you a brief look into the telecommunications department of Alenia Marconi Systems. The phone system at AMS is what I would consider as your average phone and paging system. The network is setup, I believe, in a standard basic small business manner also. There is a server for email that is physically separate from the intranet and web server. AMS is a non aggressive facility when it
Introduction If you’ve ever been a network administrator, the call you dread the most might be one you receive in the middle of the night by some panicked employee stating that a portion of your critical network has gone down. What troubleshooting options are available to provide answers to your network problem? Besides having a proactive helpdesk that can “read” the mind of your network, an important part of troubleshooting involves using a network protocol analyzer. If you’ve done your research
adding great opportunities for illegal activities. Data can be changed or destroyed, systems can be made to malfunction and long distance charges can be avoided. One of the biggest challenges today is to control the network security. Network security is having protection of networks and their services from unauthorized access, destruction, or disclosure. Malicious acts bring up the important topic of disaster recovery. Companies must have up to date copies of their important documents and software
industries, the network of consumers using compatible products or services influences the benefits of consumption. Positive network effects arise when the consumer utility of using a product or service increases with the number of users of that product or service. The telephone system is a widely used example since it seems clear that the value of being part of the network rises as the network sizes increases. Consumption benefits can also arise in markets where a large customer network leads to increases
Cable and Internet Networks In most cases cable or DSL companies such as Comcast or DirectPC are just a single type of Internet connection company. But sometimes companies acquire these one-connection companies to make their companies bigger and better such as AOL buying Time Warner. As these companies get bigger and start to offer more types of connections they also start to have more security conflicts. AOL’s software for its dial up connection has a firewall built in to it, the firewall protects
The Networks Surviving With Survivor Reality shows sent a much-needed lifeline to the television networks industry. These shows have found a new way to bring much needed viewers, and even more important they brought in much needed money. The money came rolling into CBS after premiering Survivor, which brought in a profit of around $30,000,000 to the network. Even though Survivor is the must costly reality show, costing close to one million dollars to produce and hour of programming. In comparison
Network Security In the last decade, the number of computers in use has exploded. For quite some time now, computers have been a crucial element in how we entertain and educate ourselves, and most importantly, how we do business. It seems obvious in retrospect that a natural result of the explosive growth in computer use would be an even more explosive (although delayed) growth in the desire and need for computers to talk with each other. For quite some time, businesses were primarily interested
Network Security Network security is a problem that network administrators face. It is something that network administrators should keep a careful eye on. For example, if the home network does not have any security measures in place, then the person is at a high risk of data loss due to hacking. Network security is something that businesses do not take very lightly because they want to protect their valuable information and network resources from hackers. It is a problem because of unauthorized
recent years, network coding [1], [2] has been considered as an auspicious information network paradigm for augmenting the throughput of multiple unicast networks [5]. The pioneering researches of network coding were undertaken by R. Ahlswede, N. Cai, S.-Y.R. Li and R.W. Yeung. Their discovery, which was first introduced in [1][2], are considered to be the crucial breakthrough in modern information theory and the time of its appearance, is recognized as the beginning of a new theory-Network Coding theory
Topology refers to the physical or logical shape or layout of a network. Communication between different nodes within a network is determined by its topology. Mesh, Bus, Ring and Star are four of the most common network topologies, each with advantages and disadvantages in relation to each other. Mesh Topology The Mesh topology is true to its name in that there are multiple redundant interconnections between network nodes. A mesh network can employ one of two connection arrangements, full mesh or
Network Design Network Design is very important when it comes to implementing a connection between a computer and a server. According to Network world Websites, Network is defined as a “connected collection or devices and end systems, such as computers and servers, that can communicate with each other”(McQuerry). Network carry data in many types of environment, such as homes, small businesses, and large enterprises. Network Locations Is one of the major factors. There are different types and locations
discuss the role of network management and how the network manager contributes to the network security of an organisation. Network security will be discussed in full to inform on how big of an impact network attacks can have on an organisation. Once the impact of network security has been covered I will go through all possible threats that can harm an organisation and the steps network managers should go through to secure a network to the best of their ability. The importance of network tools will be introduced
In designing a network, it is essential to first determine the scope of the project by asking key questions that will aid in the design and build. Questions such as how many servers and computers will be connected, what is the intended purpose of the network, and how much money is available are basic questions that come immediately to mind. Other questions such as security considerations, and how will the physical architecture of the building affect the design are often ignored but are equally
Case Study of Nortel Networks Vision Statement "Nortel Networks mission is being a company that's valued by its customers, shareholders, employees, and the communities in which our people live, work, and raise their families"[1]. Introduction Nortel's Core Values Our people are our strength: Nortel boasts the importance they place on their employees and the contributions they make to the organization. We create superior value for our customers: The company claims that their products
Neural Networks A neural network also known as an artificial neural network provides a unique computing architecture whose potential has only begun to be tapped. They are used to address problems that are intractable or cumbersome with traditional methods. These new computing architectures are radically different from the computers that are widely used today. ANN's are massively parallel systems that rely on dense arrangements of interconnections and surprisingly simple processors (Cr95, Ga93)
Each virtual network in a network virtualization environment is a collection of virtual nodes and virtual links. Essentially, a virtual network is subset of underlying physical network resources. Network virtualization proposes decoupling of functionalities in a networking environment by separating the role of traditional ISPs into InP’s (Infrastructure Providers) who manages the physical infrastructure and SP’s (Service Providers) who creates virtual networks by aggregating resources from multiple
how people interact with each other and the network has made the internet more accessible. The internet with the help of the network has given people new ways to get communication, entertainment, and information. The network is a collection of electronic devices connected together by a communication device most of the time. The way the network has help the internet is because thank to this new system we could access the internet from anywhere this network is in place. According to Ahmad Riaz writes