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Homework 1 Solution

# Homework 1 Solution - CIS 3360 Security in Computing Spring...

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CIS 3360 – Security in Computing Spring 2010 Solution for Homework 1 1) Consider that you are a system administrator for a company that has 200 workstations each in four different cities. Sixty-four consecutive 32-bit network IP addresses have been assigned for each to your company by ICANN (The Internet Corporation for Assigned Names and Numbers). First assigned address at each location is given below in dotted decimal notation. Convert these addresses into dotted binary, octal, and hexadecimal notations. Show your calculations. a) 210.208.156.100 Binary: 1101 0010.1101 0000.1001 1100.0110 0100 Octal: 322.320.234.144 Hexadecimal: D2.D0.9C.64 Calculations for binary: 2 210 105 0 52 1 26 0 13 0 6 1 3 0 1 1 2 208 104 0 52 0 26 0 13 0 6 1 3 0 1 1 2 156 78 0 39 0 19 1 9 1 4 1 2 0 1 0 2 100 50 0 25 0 12 1 6 0 3 0 1 1 Calculations for octal: 8 210 26 2 3 2 8 208 26 0 3 2 8 156 19 4 2 3 8 100 12 4 1 4 Calculations for hexadecimal: 16 210 13 2 16 208 13 0 16 156 9 12 16 100 6 4 b) 220.4.200.35 Binary: 1101 1100.0000 0100.1100 1000.0010 0011 Octal: 334.004.310.43 Hexadecimal: DC.04.C8.23

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Calculations for binary: 2 220 110 0 55 0 27 1 13 1 6 1 3 0 1 1 2 4 2 0 1 0 2 200 100 0 50 0 25 0
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Homework 1 Solution - CIS 3360 Security in Computing Spring...

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