common network threats and provide solution to protect users from threats‚ hackers and ensures that the data travelling across the networks is safe. Introduction: Computer and network security is a new and fast moving Technology and as such‚ is still being defined and most probably will always be “still defined”. Security incidents are rising at an alarming rate every year [Figure - 1]. As the complexity of the threats increases‚ so do the security measures required to protect networks. Data center
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Introduction If you’ve ever been a network administrator‚ the call you dread the most might be one you receive in the middle of the night by some panicked employee stating that a portion of your critical network has gone down. What troubleshooting options are available to provide answers to your network problem? Besides having a proactive helpdesk that can "read" the mind of your network‚ an important part of troubleshooting involves using a network protocol analyzer. If you’ve done your research
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ω t [R1 + R2] = K + [I0/C[-ω - 1/C2R12]] K = I0sin ω t [R1 + R2] - [I0/C[-ω - 1/C2R12]] V(t) = [I0sin ω t [R1 + R2] - [I0/C[-ω - 1/C2R12]]]e-(1/CR1)t + [-[I0/C[-ω 1/C2R12]]/ω CR1]sin ω t + [I0/C[-ω - 1/C2R12]]cos ω t Q#6.29: Consider a series RLC network which is excited by a voltage source. 1. Determine the characteristic equation. 2. Locus of the roots of the equation. 3. Plot the roots of the equation. Solution: R V(t) i(t) L C For t ≥ 0 According to KVL di 1 L + ∫ idt + Ri = V(t) dt C
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Peer-to-Peer Networks for Content Sharing Choon Hoong Ding‚ Sarana Nutanong‚ and Rajkumar Buyya Grid Computing and Distributed Systems Laboratory‚ Department of Computer Science and Software Engineering‚ The University of Melbourne‚ Australia (chd‚ sarana‚ raj)@cs.mu.oz.au ABSTRACT Peer-to-peer (P2P) systems are popularly used as “file-swapping” networks to support distributed content sharing. A number of P2P networks for file sharing have been developed and deployed. Napster‚ Gnutella
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1 Multi-Channel Scheduling and Spanning Trees: Throughput-Delay Trade-off for Fast Data Collection in Sensor Networks ¨ Amitabha Ghosh‚ Ozlem Durmaz Incel‚ V. S. Anil Kumar‚ and Bhaskar Krishnamachari Two primary factors that affect the data collection rate (throughput) and timeliness (delay) are: (i) efficiency of the link scheduling protocol‚ and (ii) structure of the routing tree in terms of its node degrees and radius. In this paper‚ we utilize multiple frequency channels and design an
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Wide Area Network for an audio and video special effects company with worldwide offices in the U.S.‚ Europe‚ Japan‚ and South America. This part of the project details the types of network protocols we’re proposing to utilize for the WAN and LAN throughout the corporation. Keywords: WAN‚ Wide Area Network‚ LAN‚ Local Area Network‚ Global Corporate Communication Network Structure‚ Networking Protocols Protocol Choices Discussion WAN’s (Wide Area Networks) and LAN’s (Local Area Networks) utilize
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new self-propagating worms in 2001‚ some of which have been used to deploy DoS attack technology. Windows end-users and Internet routing technology have both become more frequent targets of intruder activity. The control mechanisms for DDoS attack networks are changing to make greater use of Internet Relay Chat (IRC) technology. The impacts of DoS attacks are causing greater collateral damage‚ and widespread automated propagation itself has become a vehicle for causing denial of service. While DoS
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COMPUTER | NETWORK AND COMMUNICATION | | NOTES | | | | | INDEX (COMMUNICATION AND NETWORK CONCEPT) I.NETWORK II.EVALUATION OF NETWORKING 1.ARPANET III. SWITCHING TECHNIQUES 1. CIRCUIT 2. PACKET 3. MESSAGE IV.TRANSMISSION MEDIA: Two types of media GUIDED MEDIA 1.TWISTED PAIR CABLE
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we human cannot afford to lose. Along with the introduction of the Internet‚ social networks were also enhanced and so do mobile devices that linked to the social networks. Examples of social networks are Facebook‚ Twitter‚ Instagram‚ LinkedIn‚ etc. All of these social networks enable users develop a closer relationship among each another‚ no matter how much distance between the users. By using these social networks‚ users also can share their latest status‚ upload their latest pictures‚ instant message
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10‚ 2014 Scrolling through social network on my phone had been my daily routine since my parents bought me a new phone to replace my old nostalgic Nokia phone. Since then me and my phone are inseparable. Just in luck for today because my lecturer asked each one of us to write a journal about social network. A lot of human behaviour or attitude can be observed through these social network. The first and by far the most important social network for me is Whatsapp. I’ll have a peek through
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