13- What is a cyber-attack- Give two examples of politically motivated.docx

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13. What is a cyber-attack? Give two examples of politically motivated cyber-attacks since 2007. Solution Cyber-attack: Cyber-attack is a computer network attack which measure the exploitation of computer systems, technology-dependent enterprises and networks. They use security threat code to alter computer code or data resulting in disruptive outcomes that can compramise data and lead to cybercrimes. Examples: 1. Cyberattack on Estonia in 2007 destroyed the websites of Estonian organizations like banks, parliament, ministers newspapers and broadcasters. 2. Cyberattack in 2014, the high-end data breaches of large companies with data, personal records and financial information are stolen and sold on the black market. .

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13. Use the table below to write the name of the polymer and its use. Name of Polymer Compound Use ?? C-C H C6Hs ?? H CH3 Solution Name of polymer uses polysterene rigid foodservice containers, CD cases,appliance housing, building insulator polypropylene polyspropylene is thermoplatic,used packing for consumer products,plastic parts of industries and automobiles. .

13- Use the table below to write the name of the polymer and its use-.docx

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11.What will be the output of the following program when the button is clicked? Private Sub btnDisplay_Click(...) Handles btnDisplay.Click Dim letter As String Dim sr As IO.StreamReader = IO.File.OpenText(\"DATA.TXT\") Do While sr.Peek <> -1 letter = sr.ReadLine txtBox.Text &= letter Do While (sr.Peek <> -1) And (letter <> \"*\") letter = sr.ReadLine Loop Loop End Sub Assume the 12 lines of the file DATA.TXT contain the following data: a, b, c, *, d, *, e, f, g, h, *, i. Solution The output is abcbccdefghfghghhi .

11-What will be the output of the following program when the button is.docx

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12.Â Â Â Â Â Â Which of the following is a current liability? A) Preferred dividends in arrears B) A dividend payable in the form of additional shares of stock C) A cash dividend payable to preferred stockholders D) All of these 13.Â Â Â Â Â Â When is a contingent liability recorded? A) When the amount can be reasonably estimated. B) When the future events are deemed probable and the amount can be reasonably estimated. C) When the future events are deemed probable. D) When the future events will possibly occur and the amount can be reasonably estimated. Please briefly explain why, thank you!! Solution 12. Option .

12- Which of the following is a current liability- A) Preferred divid.docx

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12. Mayberry engaged Williams as her agent.It was mutually agreed that Williams would not disclose that he was acting as Mayberry\'s agent.Instead he was to deal with prospective customers as if he were a principal acting on his own behalf.This he did and made several contracts for Mayberry.Assuming Mayberry and Williams seek to avoid liability on one of the contracts involved, which of the following statements is correct? Select one: a. Williams has no liability once he discloses that Mayberry was the real principal. b. Mayberry must ratify the Williams contracts in order to be held liable. c. The third party may choose to hold either Williams or Mayberry liable. d. The third party can avoid liability because he believed he was dealing with Williams as principal. Solution C) The third party may choose to hold either williams or mayberry liable .

12- Mayberry engaged Williams as her agent-It was mutually agreed that.docx

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12. Cholesteroi: of th a. a steroidb. a triterpenoidboth a and b Part II: Show all work in the space provided. Monosaccharides are hughly soluble in water offer an explanation 2. Draw both the Haworth projection and the most stable chairc tion ofp-D-elycom 3. In a globular protein, would or outward toward the aqueous surroundings? Fxplam ide chain ntloue inc y be oriented toward the interior of the protein 4. Show how an aldotctrose could be synthesized via the Kilani-Fischer synthesis from D-glyceraldehyde 5. Show the structure for phenylalanine at a pH above its isoelectric point: 6. Provide a synthesis of racemic isoleucine from 3-methylpentanoic acid Solution Ans 12 : c) both a and b Cholesterol is the sterol kind of compound that is found in many tissues of the body. SInce it has a rich chemistry and pharmacology and the structure has pentacyclic motifs , it is a triterpenoid. It is a organic , wax like fatty substance. .

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13. An ester-containing lipid has four types of components (an alcohol, fatty acid, and 2 others), and can be hydrolyzed under basic conditions. This is an example of a a. complex saponifiable lipid b. simple saponifiable lipid c. nonsaponifiable lipid d. prostaglandin 14. Which type of reaction could be used to produce a triglyceride that has a higher melting point than the original triglyceride? a. esterification b. hydrolysis c. saponification d. hydrogenation 15. A wax is comprised of a long chain alcohol and a a. long chain fatty acid b. micelle c. short chain alcohol d. long chain ester Solution 13. (a) complex saponifiable lipid . As it contains an ester and other gps also .,making it complex. . . .

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1S. N.N-diethyl-m-tolumide (DEET) is the active ingredient in many mosquioreof DEET is the hybridization state of carbon indicated by the arrow in shown below? ts. What the CHy CH2 16. The orbital diagram for a ground-state oxygen atom is ls 2s 2p A) B) C) D) E) 11 11L1 Solution 15) B) sp2 When a carbon atom bound to three atoms (two single bonds, one double bond) is sp 2 hybridized. When carbon is bonded to four other atoms (with no lone electron pairs), the hybridization is sp 3 The third possible arrangement for carbon is sp hybridization which occurs when carbon is bound to two other atoms (two double bonds or one single + one triple bond) 16) Answer : (D) Ground State Oxygen Atom: electron configuration is 1s 2 2s 2 2p 4 .

1S- N-N-diethyl-m-tolumide (DEET) is the active ingredient in many mos.docx

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19. All forms of energy. a) Either have the potential to move mass through space or are the motion of mass through b) Have different dimensions depending on whether it is kinetic or potential d) Are converted to chemical potential during a chemical reaction space ts in a chemical reaction Solution --Energy can neither be created nor be destroyed (Law of conservation of energy) -Chemical Potential is a form of Potential energy -All form of energy have same Dimension [M] 1 [L] 2 [T] ?-2 ANS All form of energy either have the potential to move mass through space or are the motion of mass through space .

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19. Which of the following should exhibit resonance? HCN CF4 BH3 SO2 H2CO 19. Which of the following should exhibit resonance? HCN CF4 BH3 SO2 H2CO HCN CF4 BH3 SO2 H2CO Solution Ans : SO2 SO2 exhibits two resonance structures . Both of these structures are equivalent to each other and contribute equally to the hybrid structure of the compound SO2. In both the structures , the negative formal charge is present on the more electronegative atom. .

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