Networking Statistics Project Example | Topics and Well Written Essays - 2750 words

Networking - Statistics Project Example Moreover, tree topology facilitates the network administrator to expand the network easily. However, if the network expands, it becomes more difficult for the network engineers to manage the network. 2 Issues of Tree Topology As there is no centralized provision of services, it is difficult for the network engineers to tackle issues related hardware, software and network services. Physical intervention is required as the hub backs up each network segment, if the hub become nonoperational, the workstations of the entire department becomes unavailable on the network. Moreover, it is not necessary that each network segment is using the same cabling scheme (Chapter 5: Topology). Due to compatibility issues, cross cabling or straight cabling is required, consequently making difficult for network engineers to troubleshoot network issues. Moreover, due to separate network segments on the network, some network segments may become vulnerable to threats, as network administrators do not have a centralized access to the network devices. These considerations must be analyzed during the network design stage of an organization. 3 Network Infrastructure Recommended LAN topology is a star topology. As star topology shares many advantages, the most prominent one is the centralized administration and monitoring of the network. Moreover, star topology provides high data speeds along with easy installation of cables. Any component on the network can be removed or plugged in without any interruption. Likewise, centralized administration facilitates network administrators and engineering to detect issues and faulty components. Hubs may deteriorate network performance. As they can only operate on the maximum data transmission speed of 10 Mbps and copy data files to the designated... Recommended LAN topology is a star topology. As star topology shares many advantages, the most prominent one is the centralized administration and monitoring of the network. Moreover, star topology provides high data speeds along with easy installation of cables. Any component on the network can be removed or plugged in without any interruption. Likewise, centralized administration facilitates network administrators and engineering to detect issues and faulty components. Hubs may deteriorate network performance. As they can only operate on the maximum data transmission speed of 10 Mbps and copy data files to the designated ports, files that are larger will take time and may congest the network. However, cost of the hub is low as compared to a switch; it may affect the performance of the network. On the other hand, switches can improve network performance significantly. As switches can learn the MAC address of the sender, they create a management information base for storing all the MAC addresses of network nodes. This will eliminate the time taken by the switch to identify and learn MAC address of the sender. Moreover, switches can provide the overall network usage along with statistics related to access policies via the network. Switches only share a disadvantage of a high cost as compared to hubs. A simple definition of regenerative repeater is available in network dictionary which states it as â€Å"a device which regenerates incoming digital si gnals and then retransmit these signals on an outgoing circuit†.

Requiring students to pass a standardized test to receive a high Essay

Requiring students to pass a standardized test to receive a high school diploma will not improve the educational standards or academic achievement in our school - Essay Example They will be enabled to assess the suitability of the student who had applied for admission into undergraduate or graduate degree programs (Standardized Tests, 2006). Twenty – two states of the Union have implemented such exit examinations and there is a proposal in four more states to follow suit. Critics have opined that implementing exit examinations in schools would not be beneficial to children from low income group families. Controversy surrounds these exit examinations. Thus, the state of Maryland postponed its examinations schedule for two years. The state Board of Education is keenly reviewing the date regarding implementation of exit examinations. However, proponents of exit examinations claim that the tests would improve the quality of education and contribute to the achievement of higher goals (Toppo). An improvement in the amount of time expended on various subjects was discerned in high school graduation. For instance, in the year 2005, sixty – eight percent of high school graduates had studied English for four years and mathematics, science and social studies for three years. This is a laudable feat and is higher than that of the year 1990, wherein only forty percent of the students had graduated in the core subjects. According to the results of a federal study, in the year 2005, fifty – one percent of students had taken college preparatory work, which had been only thirty – one percent in the year 1990 (Toppo). According to Russlyn Ali of the Education Trust West, an advisory group in Oakland, most of the children in the USA graduated without acquiring basic knowledge and skills. This was established in the federal study. Moreover, that study had disclosed that the average high school senior student was unable to read fluently and lacked basic skills. In addition, Jack Jennings of the Center on Education Policy,