Course content of CEH :Exam – 312-50 Module 1: Introduction to Ethical Hacking • • • • • Why Security? Essential Terminologies Elements of Security The Security‚ Functionality‚ and Ease of Use Triangle What Does a Malicious Hacker Do? o Reconnaissance o Scanning o Gaining access o Maintaining access o Covering Tracks • • • • • • • • • • • • • • • • • • Types of Hacker Attacks o Operating System attacks o Application-level attacks o Shrink Wrap code attacks o Misconfiguration attacks
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Assay of TYROSINASE (EC 1.14.18.1) PRINCIPLE: L-Tyrosine + O2 L-DOPA Tyrosinase Tyrosinase > L-DOPA > L-DOPA-quinone + H20 Abbreviation used: L-DOPA = L-3‚4-Dihydroxyphenylalanine CONDITIONS: METHOD: REAGENTS: A. 50 mM Potassium Phosphate Buffer‚ pH 6.5 at 25° C (Prepare 50 ml in deionized water using Potassium Phosphate‚ Monobasic‚ Anhydrous‚ Sigma Prod. No. P5379. Adjust to pH 6.5 at 25° C with 1 M KOH.) 1 mM L-Tyrosine Solution (Prepare 100 ml in deionized water using L-Tyrosine‚ Free
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Acids‚ Bases‚ and Buffers Introduction: The pH scale is used to determine how acidic or basic a solution is‚ ranging from 1-14. The most acidic of all acids are at a pH level of 1 and the most basic of all bases are at 14. The neutral pH level is 7‚ which is what drinking water is. The pH level is determined by the amount of H+ ions present in a solution‚ and the more H+ ions there are the more acidic it is‚ and the lack of these ions results in more basic solutions. One distinguishing feature
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Page Ethical Hacking and Countermeasures http://www.eccouncil.org EC-Council Certified C EH Ethical Hacker EC-Council TM Page http://www.eccouncil.org Hackers are here. Where are you? Computers around the world are systematically being victimized by rampant hacking. This hacking is not only widespread‚ but is being executed so flawlessly that the attackers compromise a system‚ steal everything of value and completely erase their tracks within 20 minutes. The goal
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students with the use of spectrophotometer to study the effect of temperature on the enzyme and to study and measure the enzyme activity using spectrophotometer respectively. For Experiment 5‚ a mixed solution of ONPG solution and Sodium phosphate buffer pH 7.3 is incubate at different temperature‚ 25‚ 40‚ 50‚ 60 and 70 °C. The mixed solution is then incubated for another 10 minutes after the enzyme is added in their respective temperature. Then‚ using spectrophotometer‚ the absorbance in the mixed
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From a positive intention to a partial disaster‚ eight words that describe the Georgia Colony of England perfectly. Inspired by his friend who died in prison from debt‚ James Oglethorpe‚ co-creator of the colony‚ intended the colony to be a way for debtors from prison to pay their debts off to England. However‚ King George and the England Parliament disagree with the idea of having hundreds of debtors to be sent over sea‚ towards a land very unknown to England. King George actually liked the idea
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which could be due to surface air denaturation of the protein. Buffer solution was used to renature the protein. However‚ renaturation did not happen 100%. Using an affinity column‚ LDH was purified away from contaminant proteins. The 60% cut was loaded on to a column filled with AMP-agarose beads. There were two classes of contaminant proteins present‚ AMP binding and non-AMP binding proteins. First‚ a potassium phosphate buffer solution was used to rinse the column in order to make sure all
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Equilibrium Shift Colour Change A. left less blue B. left more blue C. right less blue D. right more blue 9. A basic buffer solution can be prepared by mixing equal numbers of moles of A. NH4Cl and HCl B. NaCl and NaOH C. NH4Cl and NH4OH D. NaCH3COO and CH3COOH 10. Which of the following would be used to prepare an acidic buffer solution? A. HF and H3O+ B. NaHS and H2S C. NH3 and NH4Cl D. HCl and NaCl 11. A solution of AgNO3 is slowly added to a mixture
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Executive reaction - What is the right supply chain for your product‚ Newsvendor 1) What were the main supply chain issues or concepts presented in the article? (Use a bullet point list) Utilizing the right supply chain for products is critical to improve performance Understand the nature of demand for products helps managers to devise supply chain that can satisfy that demand Products that are classify by demand patterns are either functional or innovative Each type requires a different
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sulfate at 25°C. (1) 17 kJ/mol (2) 20 kJ/mol (3) 27 kJ/mol (4) 32 kJ/mol (5) 35 kJ/mol 4. When 20.0 mL of 0.100 M NaOH is added to 20.0 mL of 0.400 M NaH2PO4‚ the pH of the resulting buffer solution is 6.73. What is the acid component of the resulting buffer solution and what is the
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