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ch5-6(link).
ch5-6(link).

... Assigns a different code to each node Allows different nodes to transmit simultaneously and yet have their respective receivers correctly receive a sender’s encoded data bits in spite of interfering transmissions by other node. Partitions the codespace Issues: 1. codes must be carefully chosen, 2. t ...
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... • Unfortunately, recent attacks have shown that the WEP approach for privacy is vulnerable to certain attack regardless of key size ...
Zombie Attack Analyser and Counter Measure In Cloud
Zombie Attack Analyser and Counter Measure In Cloud

... environment. IDS logging agent inspects the data with the help of Suricata. Suricata is an open-source IDS available on all the platforms. It identifies an attack based on pre-defined signature rule-set. Intrusion Detection and/or Prevention Systems (IDPS) represent an important line of defence agai ...
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... The growth of the Internet along with the increased bandwidth availability have drastically contributed towards the wide spread of huge amounts of multimedia content through the Internet. Multimedia data are usually of considerable size, requiring long and sometimes intolerable transfer times. The s ...
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... • Unicast traffic, through a hub, is like broadcast traffic • Multicast traffic through a hub or “unmanaged Switch” is like broadcast traffic • Broadcast traffic when not controlled, can affect overall network performance as well as your network nodes ability to perform its primary process causing “ ...
WAN Backbones
WAN Backbones

... ATM/SONET network interface cards use photodetectors to read optical signals and photoreactors to generate them Instead of network hubs, ATM networks use switches to generate virtual circuits These are not the same as Ethernet switches ATM cells do not pass through routers or network nodes • As a re ...
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CSC 311 - School of Computing Homepage
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... • 4Effective Intrusion Detection using Multiple Sensors in Wireless Ad Hoc Networks – Pros • Mobile agent based intrusion detection • Intelligent routing of intrusion data throughout the network • Lightweight implementation ...
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Introduction CS 239 Security for Networks and System
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01101044
01101044

... utilization, and the traffic will often be passed through other cities before reaching its destination. The largest costs facing any ISP are the upstream capacity costs of connections. Peering arrangements at an exchange reduce the need to send IP traffic through a bandwidth of upstream provider. On ...
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Deep packet inspection

Deep Packet Inspection (DPI, also called complete packet inspection and Information eXtraction or IX) is a form of computer network packet filtering that examines the data part (and possibly also the header) of a packet as it passes an inspection point, searching for protocol non-compliance, viruses, spam, intrusions, or defined criteria to decide whether the packet may pass or if it needs to be routed to a different destination, or, for the purpose of collecting statistical information. There are multiple headers for IP packets; network equipment only needs to use the first of these (the IP header) for normal operation, but use of the second header (TCP, UDP etc.) is normally considered to be shallow packet inspection (usually called Stateful Packet Inspection) despite this definition.There are multiple ways to acquire packets for deep packet inspection. Using port mirroring (sometimes called Span Port) is a very common way, as well as an optical splitter.Deep Packet Inspection (and filtering) enables advanced network management, user service, and security functions as well as internet data mining, eavesdropping, and internet censorship. Although DPI technology has been used for Internet management for many years, some advocates of net neutrality fear that the technology may be used anticompetitively or to reduce the openness of the Internet.DPI is used in a wide range of applications, at the so-called ""enterprise"" level (corporations and larger institutions), in telecommunications service providers, and in governments.
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