P1: Describe Network Technologies:
Network Operating systems: A Network operating system is the software, which runs on the server. It allows the server to control functions within a network. This could include users, groups and security. Some examples of these operating systems are Windows, Linux and Mac OS.
Network protocols SNMPv3 and ICMP: SNMPv3 is an Internet standard protocol, which manages devices on IP Networks. SNMPv3 is supported by routers and switches. The main difference between SNMPv3 and SNMPv2 is better security. It adds cryptographic security and more encoded security parameters. ICMP is used to send error messages when a service isn’t available. One command, which uses ICMP, is the Ping command, which is used to test connection
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The main topologies are Bus (All Workstations are connected to one line), Star (All Workstations are connected to a central hub), Ring (All workstations are connected to fellow workstations left and right of them) and Mesh (All workstations are connected to each other). A lot of topologies are designed to allow more workstations to be added at a later date. But a lot of topologies also have weaknesses, such as the Bus topology and the Ring topology, which would both break down if a node was to fail.
Network Devices: Network devices include all devices, which help make a network workable. These include Hubs (Enables more than one computer to interconnect on a network), Routers (Connects two networks), Switch (Joins multiple computers within one LAN and a Bridge (Allows one network to connect to another
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It allows network administrators to create a virtual server environment by using some of the server’s resources. By doing this, it creates virtual/private servers and one of the benefits of this is that it would cost less money to use virtual servers rather than physical servers as hardware maintenance would not be required. Also, if one virtual server goes down, the others will still be left running. In the example above, there are 4 physical servers. Server Virtualization only needs one physical server to be able to create the virtual servers.
Video on Demand: Video on demand has already had a huge impact but it will continue to grow. The more shows they manage to get for video on demand, the more people will possibly sign up. There are already millions of people who use Netflix all around the world and with it coming to more devices (Including game consoles like PS4 and the Xbox One) video on demand is one of the biggest emerging technologies out there
Component needed will be; five 24 port switches, Cat5e UTP and the workstation computers with the proper NIC devices. This layout would start with the 24 port switch in the center of the network. This switch is connected using a Cat5e UTP medium to the other 5 switches. Each switch is connected to the workstation computers using Cat5e UTP medium. This will create a physical star topology. The logical topology will be based on a 100BaseTX and incorporate the use TCP/IP protocol.
Virtualization can reduce the number of physical systems we need to acquire, and we can get more value out of the servers. Most traditionally built systems are underutilized and Virtualization allows maximum use of the hardware investment. With virtualization, you can also run multiple types of applications and even run different operating systems for those applications on the
Logon services – This is a service to authenticate the users who access the main server. This should be done to ensure data being virtualized is safe and cannot be hacked. Cisco has one used for voice calls, Cisco AS5800. This is mainly applied for calling card business, the user creates card with user name and PIN, the caller has to
Because of a staggering influx of Internet business, the network administrator’s task is to boost network performance and availability as much as possible. The company also wants a network design that’s easy to reconfigure and change because workgroups form and disband frequently, and their membership changes regularly. All computers must share sensitive data and control access to customer files and databases. Aside from the customer information and billing databases, which run on all servers, employees’ desktop computers must run standard word-processing and spreadsheet programs. Use the following write-on lines to evaluate the requirements for this network. After you finish, determine the best network topology or topology combination for the company. On a blank piece of paper, sketch the network design you think best suits EBiz.com’s needs. Remember: High performance and easy reconfiguration are your primary design goals!
There are different ways to get a network up and running. Deciding on how to connect computers together to suit the need can be a little challenging at times. A network is either peer-to-peer (also called workgroup) or server-based (also called client/server network).
People are no longer just sitting and watching television, instead, they are following their shows in real time through social media on platforms such as Twitter and Facebook. Artificial Intelligence (AI) is also taking over the entertainment industry. Companies are using AI to create effective movies based on box office hits as well as movie trailers that can be produced in less time than traditional methods. Cable companies are losing customers at a rapid rate due to their high costs and bundle purchasing requirements. Customers can now go online and find alternative platforms for entertainment at a lower cost. Another advantage of streaming services is that there are no lengthy contracts, customers can cancel their service at any time (Newman,
Large corporations might choose to consolidate their IT system in one virtualized (and very expensive) server farm saving on hardware, support and maintenance costs over time.
Virtualisation works by splitting up a physical server into multiple different virtual servers, with each server’s resources being masked from the end point user. It is commonly used by businesses to cut their costs, especially in the realm of web-hosting where a hosting provider will use one powerful server – But cut it into hundreds of smaller servers which can be auctioned off at a cut-throat price to consumers.
The internet is only going to get faster, more reliable and more available and with it the sales of smart televisions will increase, tablet, and smartphone viewing will also increase. The use of applications for viewing will rise drastically and right there in the middle of the race is Netflix. They are a commercial-free, unlimited-viewing subscription TV, that does not have pay-per-view and they do not have advertisements and as an added bonus they offer the first month for free, which as a consumer is a try it before you buy it philosophy and been known as a marketing strategy to build your customer base. They focus on movies and television shows and have the most content, some of which is exclusive to them.
An operating system is a set of programs that manage computer hardware resources and provide common services for application software. (Operating Systems) Without the operating system, a computer could not function. Applications would not be able to operate
To network virtual servers to each other. You also need to control who can access the server. You want to protect/firewall the server especially if it is exposed to the Internet.
The physical and logical mapping network scans will utilize network seed devices, which provide the largest amount of network propagation with the least impact on network performance. Once the network seed devices have been selected, network topology mapping software will be configured to directly communicate with the selected network devices utilizing SNMP. Once SNMP communication has been established, SolarWinds Network Topology Mapper software will begin "walking" the Management Information Bases of selected seed devices to locate network routes, CDP and LLDP neighbor information. Network propagation will then take place via seed device routing tables and neighbor device information. The SolarWinds Network Topology Mapper must also be
An operating system (OS) is a collection of software that manages computer hardware resources and provides common services for computer programs. First let’s look at most commonly used operating systems, like…
A network is a group of computers and other devices connected by some type transmission media. There are various kind of network available nowadays. A network can be as small as two computer connected by a cable at home or larger like several thousand computer connected worldwide via cable lines, phone lines, and cellular links. The use of networks has lots of advantages. Networks enable multiple users to share devices and data. For example, instead of buying 20 printers for 20 people, a company can buy one printer and have 20 people share it over a network. Here are five technologies that uses network: scanner, printer, Bluetooth,
Virtualization is an important component when it comes to server. It’s helpful when using one instance of a server and spread it on multiple devices. Virtualization is a “use of software to allow a piece of hardware to run multiple operating system images at the same time” (Rouse, web) They all act as a different machine allowing the user ability to reset and start all over again at any given time. Operating system virtualization has many important features and they all help reduce cost and energy in long term.