to 10 Gpbs. Question 14. Explain how a message is transmitted from one computer to another using layers. Using the five layer Internet model - A message transmitted from one computer to another would start in the application layer where letters‚ numbers‚ and keystrokes of the message are converted into HTTP packet. The message would then be send through the transport layer‚ which would establish‚ maintain‚ and terminate the connection between the computers for
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S.P.B.Patel engineering College‚ CE\IT Department Saffrony Institute of Technology‚ Campus $ # $ " 4 ! 3 2 1 ¦ 0 ¤ ¢ ) ¦ ¢ ¤ ¡ § ( © ¨ ’ § ¦ ¦ ¥ & ¤ £ % ¢ ¡ ¡ 1 Which of the OSI layers handles each of the following : -Determine which route through the subnet to use. -Dividing the transmitted bit stream into frames. -Encryption and compression of the information. -Flow control between source and destination node. Classify various transmission media for computer
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security and an analysis of the reason that lead to unsafe network environment. Then the article introduces two frequently used protocols in network security: HTTP (Hypertext Transport Protocol) and HTTPS (Hypertext Transfer Protocol over Secure Socket Layer)‚ then compare them and give a brief conclusion. On the other side‚ the article introduces how firewall protects network security in hardware aspects. Keywords: Network; Security; Analysis; Countermeasures 1. Introduction As technology develops
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Cross Layer Design for Wireless Multimedia Networks Assignment 1 1. Which of the following uses the widest spectrum? (a) 802.16 (b) 802.11 (c) CDMA-2000 (d) UWB Ans: UWB 2. Which of the following is true? (a) Small-scale multipath fading is the primary driver behind wireless communication system design. (b) In the free space loss model‚ there is no frequency effect. (c) Data throughput in sensor networks is a bigger concern
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solutions proposed to secure data communications in these networks. We look at the perforMost future networks mance problems arising in hybrid networks due to security additions like Internet Security Prowill be hybrid in tocol (IPSec) or Secure Socket Layer (SSL)‚ and suggest solutions to performance-related nature — having problems. We also point out important drawbacks in the proposed solutions‚ and suggest a terrestrial nodes hierarchical key-management approach for interconnected by adding data security
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2012 A Survey of Intrusion Detection Systems for Wireless Sensor Networks Report This is the paper review of the paper “A survey of Intrusion detection systems in WSNs by Ashfaq Hussain Farooqi and Farrukh Aslam Khan”. This report is being submitted to Madam. Dr. Mehreen Afzal in the course “Advanced Cryptography and Cryptanalysis” by “Iftikhar Zafar” Center For Advance Studies In Engineering‚ CASE‚ Islamabad‚ Pakistan 12/22/2012 2 ABSTRACT: Wireless sensor networks (WSNs) are in
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Recrystallization Experiment 2: Recrystallization & Melting Point • Most important method for the purification of organic solids • Separation of compounds based on differences in solubility between the compound of interest and its contaminants • Basic technique: 1. dissolve impure sample in an "appropriate" hot solvent Part A: Choosing a Solvent Part B: Purification of Phenacetin 2. cool solution slowly to induce crystal growth 3. filter resulting mixture to isolate crystals Reading:
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of security gateway but also for between a security gateway and a host. IPsec provided end-to-end security in the Internet Layer of the Internet Protocol Suite. It is different to other Internet security systems which is being use all over the place‚ such as Secure Sockets Layer (SSL)‚ Transport Layer Security (TLS) and Secure Shell (SSH)‚ operate in the upper layers of the TCP/IP model. Therefore‚ IPsec will protects any application traffic that came across in network. To use IPsec‚ applications
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• Learn the techniques associated with thin layer and column chromatography. • Determine the effects of the stationary phase in separating a mixture by chromatography. • Determine the effects of the mobile phase in separating a mixture by chromatography. • Conduct a separation using column chromatography. In the first week‚ the students will determine the best solvent system for separating a methylene blue/sodium fluorescein mixture by thin layer chromatography using silica gel and alumina
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OF CODEINE AND PARACETAMOLPRACTICAL REPORT ON THE ISOLATION AND IDENTIFICATION OF CODEINE AND PARACETAMOL AIM: To extract codeine and paracetamol from its tablet by solvent extraction and tentatively identify in comparison to standards using Thin Layer Chromatography. INTRODUCTION: Codeine or methyl morphine‚ an alkaloid‚ was first isolated in 1832 from raw opium. It concentration ranges from 0.2% to 0.8%. Mostly used for its analgesic‚ anti-tussive and anti-diarrheal capabilities (Tremlett
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