Questions and Answers About Networking: Subnets and Hub Essay

2. Enterprise networks typically use LAN _____ at each site to connect devices using some type of media.

11) You are given the Class B network address: 172.25.0.0. From this network, if you needed to create 35 subnets, how many bits would need to be borrowed at a minimum and how many hosts could you have per subnet?

1) In IP subnet planning, having a large subnet part allows more hosts per subnet.

Sub netting: The procedure of apportioning a solitary TCP/IP system into various separate system sections called subnets.

Gigabit ethernet connections for both the WAN and LAN ensure the fastest file transfer speeds available. This prevents any bottlenecks between the router and modem to take full advantage of your high speed internet connection. Additionally, file sharing between up to 4 ethernet connected home computers will be lightning fast.

In the design, the topology used is a star topology. The computers in every office or classroom are linked to the central device known as the switch. The star topology leads to the expansion of the network without any disruption. This defines the use of a hub, a router or a switch to interconnect various computers together. All the workstations in this topology are connected with a connection of point-to-point to the central device. The data is first passed through the primary device before reaching the planned destination. Hub controls and manages the whole network. The hubs connect several nodes that are present in the star system. The hub acts as the signal booster (Elhakeem, 2010).

When setting up a LAN the architecture that you decide to choose is important. There are several factors that are decided when choosing said architecture, some of these being network speeds, types of cables, and access control mechanisms like collision detection (Team, 2011). The most common on in today’s LANs is Ethernet. These can be either wireless, wired, or a hybrid of both.

HUB - An Ethernet hub, active hub, network hub, repeater hub, multiport repeater or hub is a device for connecting multiple Ethernet devices together and making them act as a single network segment.

Switches are much like a bridge where they can connect networks that use the same protocols. They are used to direct traffic over multiple networks. Some switches will check

The mesh topology provides multiple routes between devices. Not only does this provide alternates for file transmission should there be a failure anywhere along the network, but it makes it easy for additional devices to be connected and will not slow down network traffic. Since networks built using mesh topology can be large one of the main disadvantages is the difficulty involved with installation, configuration as well as the on-going maintenance involved. The expense of cabling is also a disadvantage of mesh topologies as they can take more cabling and more devices than other topologies. (Networking

Legacy Ethernet is half-duplex, meaning information can move in only one direction at a time. In a totally switched network, nodes only communicate with the switch and never directly with each other. Switched networks also employ either twisted pair or fiber optic cabling, both of which use separate conductors for sending and receiving data. In this type of environment, Ethernet stations can forgo the collision detection process and transmit at will, since they are the only potential devices that can access the medium. This allows end stations to transmit to the switch at the same time that the switch transmits to them, achieving a collision-free environment. (Pidgeon, 2011)

The definition of a switch or network switch is a small device that joins multiple computers together, working on layer two of the OSI, to form a local

LAN Switch- A LAN Switch performs the same work as a hub except that, a switch does not broadcast packets to every computer in the network like hubs. All the computers and computer devices will be connected to the switch by Ethernet cables. The LAN Switch costs $150.

When a CPU is composed of two or more processors, each one is referred to as a(n) ________.

Speed: The speed of the network depends on how the network is built amongst other factors. The 10 base5 backbone infrastructure has a transmission speed of 10Mbps. The backbone is connected using bus topology, the bus being a shared medium causes all nodes to share the maximum data rate, depending on how many users are trying to access the network at a time (Frenzel, 2009). This means that the maximum aggregate throughput is 10Mbps. Furthermore, the use of hubs and repeaters puts all the nodes on the network in one large collision domain and because hubs and repeaters do not learn mac addresses they encourage broadcasts which takes up bandwidth that could be used to transfer frames. In addition all nodes on the network operate in half duplex mode. With half-duplex transmission, a node cannot both transmit and receive at the same time. If two nodes try to transmit at the same time it leads to a collision and the two packets are discarded. All these factors serve to slow down the network.