When troubleshooting a computer network‚ it is very important that we look at every small detail in that network. One small mistake like a mistyped number can make all the difference in the way a network performs. In the case of the diagram E-1‚ there are many problems like this that can cause the network to not perform the way it is supposed to. Some of these problems include the IP addresses‚ subnet masks‚ and default gateways in this network. All of these things need to be correct and working
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INTRODUCTION In today’s modern world computer networks are the basic source of information exchange for all types of businesses. Different technologies are used within the context of networking depending on the requirements of an organization. Ethernet is off course the best technology for the “local area network” (LAN)‚ but when the organization spread their business to much longer distances (cities) then WAN technologies need to be deployed to keep the business running. The selection of an appropriate
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Hop count 3 If the metric used by RIP exceeds this value for a route it is considered unreachable‚ effectively making this value appear to be infinity to RIP? 16 4 How often does RIP send updates by default (update timer)? Send full updates every 30 seconds 5 What are the main differences between RIPv1 and RIPv2? the main difference between RIPv1 and RIPv2 is classless routing. RIPv2 incorporates the addition of the network mask in the update to allow classless routing advertisements
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Network Security Some DoS attacks can be avoided by applying vendor patches to the software that has been compromised. Another way to deal with DoS attacks in the case of an attack coming from a number of known IP addresses is to put up a rule to drop all incoming traffic from those known attackers. Yet another way to deal with these types of attacks is to set up packet filters. This will act as a proxy for connections. Once the handshake is validated it will be forwarded to the correct destination
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Carrier Sense Multiple Access with Collision Avoidance. However‚ simple CSMA is susceptible to the hidden node problem‚ especially in so called ad hoc networks where a node may communicate directly with every other node in range or using intermediate nodes as relays otherwise. Hidden nodes cause costly packet collisions and thus significantly affect network performance. In order to combat the hidden node problem‚ a mechanism known as Request to Send/Clear to Send (RTS/CTS) handshake is often used. RTS/CTS
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NETWORK Computer Network also called Network is a group of computers and other devices connected to each other to share resources electronically. Networks can be as small as two computers or many thousand computers that are connected to one another. These computers are usually connected to one another through wires‚ satellite‚ and modems. Each device connected to the network is called a “node”‚ and the computer that is connected to the network is called a workstation. There are several ways
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Topologies and Network Technology NTC/361 Monday‚ August 8‚ 2011 Thomas Krawczyk Topologies and network technology In every project‚ it is important to have a goal‚ and that goal should be the foundation on which a project team spring into action. The foundation should involve an infrastructural plan‚ and the usability of the components of the infrastructure. A project plan‚ as in any other plan‚ should outline the premise of the project and answer some basic questions like why
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Network Plan Melissa Schnitzer Bryant & Stratton College NETW265 – Networking Tech Capstone Professor Gray November 10‚ 2012 Every company‚ no matter how big or small‚ will need careful attention to detail to ensure that an organization’s information will function properly and will be secure. Some of the things to consider are hardware‚ software‚ cost analysis‚ disaster recovery plans‚ and authentication policies. When creating a network plan for Acme Sensitive Data‚ these measures were
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Wireless Network A wireless network‚ as its name would suggest‚ is a network of computers and computer peripherals that are connected to each other without wires. This enables ease of communication‚ especially for mobile computing platforms. Further‚ there are a number of other advantages to a wireless network that make them increasingly common in both the workplace and at home. Nearly all wireless networks in the world work on a standard set up by the Institute of Electrical and Electronics
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Bus Topology Bus networks (not to be confused with the system bus of a computer) use a common backbone to connect all devices. A single cable‚ the backbone functions as a shared communication medium that devices attach or tap into with an interface connector. A device wanting to communicate with another device on the network sends a broadcast message onto the wire that all other devices see‚ but only the intended recipient actually accepts and processes the message. Ethernet bus topologies are
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