1 - CS 176A Homework 2B Sean Chen 3642584 11/17/11 1....

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CS 176A Homework 2B Sean Chen 3642584 11/17/11 1. 2^(32-14) - 2 = 262,142 valid host addresses 2. 2^(32-20) – 2 = 4,094 valid host addresses 3. Yes, 130.207.52/22 is a valid network because if you apply the network mask, the prefix remains the same. 10000010 11001111 00110100 00000000 = 130.207.52.0/22 11111111 11111111 11111100 00000000 = 255.255.252.0/22 10000010 11001111 00110100 00000000 = 130.207.52.0/22 4. 10000010 11011000 00100011 0001xxxx = 130.216.35.16/28 Lower Bound: 10000010 11011000 00100011 00010000 = 130.216.35.16 Upper Bound: 10000010 11011000 00100011 00011111 = 130.216.35.31 The range of addresses covered for 130.216.35.16/28 is 130.216.35.16 to 130.216.35.31 5. 00100110 1xxxxxxx xxxxxxxx xxxxxxxx = 38.128/9 Lower Bound: 00100110 10000000 00000000 00000000 = 38.128.0.0 Upper Bound: 00100110 11111111 11111111 11111111 = 38.255.255.255 The range of addresses covered for 38.128/9 is 38.128.0.0 to 38.255.255.255 6. 10101111 01101111 xxxxxxxx xxxxxxxx = 175.111/16 175.111.0/19, 175.111.32/19, 175.111.64/19, 175.111.96/19, 175.111.128/19
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1 - CS 176A Homework 2B Sean Chen 3642584 11/17/11 1....

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