Computer network

capabilities. b) Company-owned networks that use IP technology to securely share part of a business’s information or operations with suppliers, vendors, partners, customers, or other businesses. c) With screen sharing and other groupware tools, intranets can be used to facilitate collaboration. d) Companies deliver policies, pay stub information for direct deposits, benefits, training materials, and news to their employers via their intranets. 40. Virtual private networks (VPN) are…

stands for virtual private network. Its main purpose is to secure the connections between the host and the server. It fulfills that purpose by using tunneling protocols, encryption, data encapsulation and certified connections to protect the identity of the host. The simplest way to think about it is to compare it to a LAN connection but without wiring. The History of VPN: Early VPNs were often set up to give individual employees secure remote access to their company networks, hence the name…

Fig 2.2 Structure of a PLC access network On the other hand, PLC can be categorized based on its bandwidth [14], 1. Narrowband PLC (2 Mbps) is applied in Internet access, multiple voice connections, transmission of video signals, in-home networks, high-speed data transmission, and narrowband services. The transmission characteristics of power line channels are not favorable for data transfer based on the fact that low-voltage supply networks are not designed for communications. The power…

I. Physical Network Design A. Network Topology Business Needs Topology is important as it is the way the computers in this business will be lined up and how they pass information from one to the next. A wrong topology can cause a lot of extra expensive and headaches for the IT personal. The correct topology will make it easier to manage and will help keep the system running smoothly. A physical topology must be picked that can be easy to set up and easy to maintain. It should allow systems to…

Introduction I. Vulnerability Assessments (Or “What do we have of value that must be protected?”) A. The Company Network Figure 1: Existing Company Network 1. Physical Devices a) The NETGEAR MR814 Wireless Router (all versions) has two key vulnerabilities. First, the MR814 only supports Wired Equivalent Privacy (WEP) encryption to secure traffic sent over the wireless network [1]. WEP has numerous, well documented vulnerabilities and exploits. In its standard implementation, WEP can be…

Network security has been at the head of some stories in the news. Security is an aspect of the technology field that should be considered at all times. Not only can personal security be breached, the security of others can be affected as well. For example, the incident with the retail company Target, (Vijayan 2014) retailer 's failure to properly segregate systems handling sensitive payment card data from the rest of its network. In this paper, network segment security aspects will be discussed…

ABC Company has a few diverse equipment and software needs to meet the prerequisites of their network. We've investigated the different pieces of equipment and software to suit the needs of the company. We've looked into what every building will require with respect to what benefit every site gives and decided their needs based on those results. Servers For the servers we are recommending that they use the Cisco UCS B230 M2 Blade server, this server is a well-rounded product that features an…

Internet, one of the greatest inventions in the 1970s, originally came from a communication system developed by the United States during the Cold War. As technology has improved, the network system has grown rapidly. From the beginning of military communication system to now which everything is possible through Internet. Based on the record of the company Internet Live Stats, the number of the Internet users had grown from three hundred and sixty million in 2000 to three billion in 2014. More…

wire line communication technologies. Several times both wire line and wireless technologies competed with each other, but generally, they are complementary to each other. For the most part, core infrastructure and backhaul transport for wireless networks are based on wire line technologies, whether copper wire or optical fiber. 1.2.1 Bandwidth Management Operators are both considering and implementing several techniques for managing bandwidth which are as follows (a) More Spectrum: Spectrum…

Comparison between Li-Fi and Wi-Fi This section is mainly dedicated for comparing Li-Fi and Wi-Fi considering various aspects. LI-FI is a visible light technology to achieve high speed wireless communication by using visible light to transfer data. It acquired this name due to its similarity to WI-FI which utilizes radio waves for transfer of data. WI-FI is great for extensive wireless coverage in buildings but has severe limitations for high density wireless information coverage in limited…