Different types of Network Cables-Free-Samples-Myassignmenthelp.com

Questions: 1.Explain the functions of each of the following components Bridge Router DSL modem Switch Network interface card Hub 2.Networking cables are used to connect one network device to other or to connect two or more computers to share printer, scanner etc. Find out and explain about the cable types, size, speed and cost. Answers: 1.Bridge: A bridge primarily acts as an interconnection between two LAN connections that are using the same protocol. It can be used to connect different types of networks such that they can intercommunicate and perform as one LAN connection. It can also be used as a repeater working in the data link layer with the additional function of data packet filtering using the MAC addresses of the source and the destination of the packets. Router: A router can be defined as a device that can be used to direct data packets by using their IP addresses (Medhi Ramasamy, 2017). It is a device that works in the network layer and can be used to find the best possible route for a packet of data to reach its destination. Routers are primarily used to establish connection between LAN and WAN and have a dynamic routing table that continuously updates itself while making routing decisions for data packets. DSL Modem: A digital subscriber line can be used to transmit data packets over telephone connections. Therefore, a DSL Modem is a modem that can be used to establish a connection between a digital subscriber line and a computer. This modem features a DSL filter that can be used to block any high frequency interference and therefore supporting the simultaneous use of voice services along with DSL services. Switch: It is a device that works in the data link layer and can be used to check for errors in data before forwarding them to their respective destinations. It is a bridge with multiple ports and is designed to boost its performance and efficiency by using many ports. Network interface card: It is a vital part of a computer that it uses to connect to a network. NIC is classified depending on the type of connection it uses. It can be either a wired connection popularly known as an Ethernet or a wireless connection that is known as Wi-Fi (Liang Yu, 2015). The type of NIC card used depends on the configuration of a computer and the environment it is about to be used. Generally, users opt for wired NIC if they require a connection with stability and speed and they opt for wireless NIC if they prefer mobility. Hub: A hub functions as a repeater with multiple ports. It is used to connect multiple wires originating from different stations. They do not support the feature of filtering data and thus these packets are directly sent to their destinations. They even cannot develop the best path for data packets and thus there is a huge amount of time wastage and packet loss while transmitting data. Illustration of a network The network begins with a DSL modem being connected to a DSL line. The modem establishes a connection between a DSL line and the required network. It modulates and demodulates the incoming signals. A router is then connected to the DSL modem. The router functions as a device that would create the best possible path for the data packets entering from the DSL line. A router is necessary to establish a connection between the DSL modem and the network and is responsible for reducing the time required for a data packet to reach its destination after entering the network (Gebali, 2016). A switch is then connected to the router to filter the corrupted data packets from the incoming packets of data. This device is necessary as there are many corrupted data packets among the packets arriving at the network. Filtering the corrupted data packets helps to boost the experience for the Internet users as they would get less lags and achieve non-corrupted file transfers over the network. It is then connected to a hub before linking to several workstations connected through ethernet wires. The computers can be connected to the network by using different network topologies such as star, tree, bus, mesh and hybrid. The choice of the topology depends on the number of computers to be connected to the network and the level of communication that they want to achieve (Younis et al., 2014). A bridge can be connected to the router to create support for a Wi-Fi network (Mahmood, Seah Welch, 2015). A switch is connected to the bridge to boost the filtering effectiveness of the network. The workstations to be connected wirelessly is then connected to the network with the help of the switch. Due to the bridge, the wired and the wireless NIC now works as a single local area network. 2.Different types of Network Cables There are six types of network cables that are primarily used for: Category 3: Category 3 or Cat 3 is one of the earliest types for ethernet cables that are used for our daily purposes. Cat 3 is an unshielded twisted pair type cable with a bandwidth of 16 MHz and is capable of transmitting voice and data at a maximum speed of 10 Mbps. It was very highly used in the 1990s and was used for every computer network. After the invention of the Cat 5 cable, Cat 3 was barely used for any networks. However, these cables are still used in telephone systems featuring two lines and for some old 10BASE-T network installations. The cost of a Cat 3 cable ranges from 0.18 to 0.46 US dollars per meter. Category 5: Cat 5 replaced the category 3 cables in its utilization in computer networks. It is also an unshielded twisted pair cable with the capabilities to transfer data at higher speeds. Cat 5 cables can be used to transfer data at 10 Mbps and 100 Mbps and with a maximum bandwidth of 100 MHz. The 100 Mbps cables are the first series of cables where the concept of fast ethernet cables were introduced. These cables were use for telephone lines as well as fast data transfer. The cost of these cables ranges from 0.01 to 1 US dollars per meter. Category 5e: A Cat 5e cable is an upgraded variation of Cat 5 cable. Cat 5e was created to reduce the interference between different channels flowing through the same cable. Crosstalk that is transmission of unwanted signals are eliminated using these cables. Cat 5 is still used for existing network connections. However, the new connections are employ 5e cables. The Cat 5e cables comes in three varieties 10 Mbps, 100 Mbps and 1000 Mbps. The 1000 Mbps cable is also known as Gigabit ethernet cable and is h=the most commonly used Ethernet cable available in the market. These cables support a maximum bandwidth of 100 MHZ and can be used in any modern network as it is backward-compatible with Cat 5. The cost of a Cat 5e cable ranges from 10 to 30 Us Dollars per roll. Category 6: Cat 6 has higher transmission capabilities than Cat 5e. Cat 5e supports Gigabit ethernet speed at 100 Mhz however Cat 6 supports the same speed at a bandwidth of 250 Mhz. Several features were improved in these cables that included higher grade insulations and the wires are thinner than Cat 5. The improvements in these cables support a higher signal-to-noise ratio and these cables are mostly used for environments with high electromagnetic interference. Cat 6 is available in both shielded twisted pair cable as well as unshielded twisted pair cable and is more expensive that the Cat 5e cables. Cat 6 is backward-compatible with its predecessors. These cables cost from 30 to 90 Us dollars. Category 6a: The category 6a cable is also known as the augmented Category 6 cable. The cat 6a cables is an improvement on Cat 6 cables as they allow a transmission of 10,000 Mbps of data transfer speed. The maximum bandwidth supported by a vat 6a cable is 500 MHz, which is an exact double of Cat 6 cable bandwidth. These cables are only available in shielded twisted pair for and thus they have special connectors that connect the cable to the ground. Category 7: Cat 7 is a fully shielded cable, which is also known as Class F cables. These cables support a transmission speed of up to 10 Gbps along with a 600 MHz bandwidth. The Cat 7 cables are shielded twisted pair cables that is further screened. The different layers of shielding and insulation are higher than the Cat 6 cables. The intense shielding and insulations make these cables thick, bulky and very difficult to bend for small area purposes. The layers of Cat 7 must be grounded to improve the performance of Cat 7 cables otherwise they might not have better functionality than Cat 6 cables or even Cat 5 cables. Due to this reason, the knowledge of different connectors at the end of the Cat 7 cables is vital. Reference List Gebali, F. (2016).Analysis of computer networks. Springer. Liang, C., Yu, F. R. (2015). Wireless network virtualization: A survey, some research issues and challenges.IEEE Communications Surveys Tutorials,17(1), 358-380. Mahmood, M. A., Seah, W. K., Welch, I. (2015). Reliability in wireless sensor networks: A survey and challenges ahead.Computer Networks,79, 166-187. Medhi, D., Ramasamy, K. (2017).Network routing: algorithms, protocols, and architectures. Morgan Kaufmann. Younis, M., Senturk, I. F., Akkaya, K., Lee, S., Senel, F. (2014). Topology management techniques for tolerating node failures in wireless sensor networks: A survey.Computer Networks,58, 254-283.