Node In communication networks‚ a node (Latin nodus‚ ‘knot’) is a connection point‚ either a redistribution point or a communication endpoint (some terminal equipment). The definition of a node depends on the network and protocol layer referred to. A physical network node is an active electronic device that is attached to a network‚ and is capable of sending‚ receiving‚ or forwarding information over a communications channel Workstation A workstation is a high-end microcomputer designed for technical
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2 1. Which of the following protocols are examples of TCP/IP transport layer protocols? B. UDP(Your Answer) D. TCP(Your Answer) 2. Which of the following protocols are examples of TCP/IP network access layer protocols? B. Ethernet(Missed) C. PPP(Missed) 3. The process of HTTP asking TCP to send some data and make sure that it is received correctly is an example of what? B. Adjacent-layer interaction(Your Answer) 4. The process of TCP on one computer marking
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Title Identification of Analgesic Compounds Using Thin Layer Chromatography Abstract The objective of laboratory experiment six was to identify an unknown analgesic tablet using Thin Layer Chromatography (TLC) analysis. The procedure involved preparing TLC plates‚ solubilizing standard analgesics (ibuprofen‚ aspirin‚ acetaminophen‚ caffeine) and the unknown in isopropyl alcohol (IPA)‚ and developing the plates in acetone. Rf values were calculated for each compound. The unknown tablet showed an Rf
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presence of 95% ethanol producing long red needles. 0.536g‚ 2.07mmol‚ 158-160°C (160°C lit3)‚ 54.6% recovery. Thin layer chromatography was performed in three different eluents‚ hexane‚ toluene‚ and acetone. The chromatography compared aniline‚ 2‚ 4-dinitrobromobenzene‚ and a sample from the mixture of the two reactants when the reaction first began to take place. Another thin layer chromatography used a product sample an hour after the reaction first began and the eluent that showed the best separation
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Introduction To Information Security Teacher : Mr. Timothy Tacker Unit 8 Assignment 1 Network Hardening Network Hardening Network Layout 4 : VPN (Remote Access Domain) – Virtual Private Networks (VPNs) with VPN software and Secure Socket Layer/VPN (SSL/VPN) tunnels A Virtual Private Network or VPN enables a computer or network-enabled device to send and receive data through shared or public networks as if it were directly connected to the private network‚ while it’s benefiting from the functionality
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A simple‚ precise‚ accurate and rapid High-Performance Thin Layer Chromatographic method has been developed and validated for the simultaneous estimation of of ellagic acid‚ chlorogenic acid‚ gallic acid and quercetin in the leaf extract of Terminalia tomentosa and its Formulation. The stationary phase used was precoated silica gel 60F254.The mobile phase used was a mixture of Butyl acetate: Formic Acid: Distilled Water 14:5:5 (v/v). The detection of spots were carried out at 254 nm. This HPTLC method
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There can be both advantages and disadvantages in using a TLC sheet of a different length. For example‚ it becomes a disadvantage if the TLC sheet in this lab was 5 cm shorter. If this were the case‚ then (Sample A) would not have shown up or the second spot of unknown substance #3. Moreover‚ the unknown substance‚ which consists of (Sample A‚ would be incorrectly identified as a pure substance and/or as consisting of only (Sample D). Contrary to using a shorter TLC sheet‚ a longer TLC sheet might
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restocking procedure adopted by each store does interfere with the feasibility and accuracy of the application as it does not remind the stock manager to update the data each time they had done any restocking. We also trust that that the Secure Socket Layer (SSL) is reliable in creating a secure connection between a client and a server. 5.2 Risks One of the major risks covered by this application is theft breaks synchronization between the inventory and the database. The information could be generated
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sent to the transport layer and is SEGMENTED‚ adds s/d PORT # and sequence number o Network layer turns these into packets with s/d ip address o Data link layer turns these into frames with s/d mac address for default gateway o Frames go to switch and switch checks source mac and learns it if it doesn’t o Switch checks destination mac (default gateway mac) and port floods if it doesn’t know Switch does NOT OPEN frame; just reads frame because switch is same layer as frame o Switch forwards
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catalyst to facilitate the reaction. The reaction forms a porphyrinogen‚ which is then oxidized to the porphyrin product by atmospheric oxygen. Column chromatography is performed for the isolation and purification of tetraphenlyporphin‚ and the thin layer chromatography for analysis.It was concluded that the renention factor(Rf) of the 5‚10‚15‚20- Tetraphenylporphyrin with a percent yield of 61% Introduction: In this experiment 5‚10‚15‚20‚ tetraphenylporphyrin was prepared‚ from four molecules each
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