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Understanding Binary and Subnetting: Calculations and Conversions

This document provides a comprehensive guide for converting decimal numbers to binary, understanding subnetting concepts, and calculating network addresses and broadcast addresses. It covers essential examples, including how to find the binary representation of numbers like 69, 15, and 251, as well as determining the highest host addresses and broadcast addresses for various subnets. By the end, readers will better grasp IP addressing and subnetting fundamentals necessary for network management.

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Understanding Binary and Subnetting: Calculations and Conversions

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  1. After 6.1

  2. What is 69 in binary? • 11001101 • 00011011 • 01010011 • 01000111 • 01000101 1 of 6

  3. What is 15 in binary? • 00010000 • 00001111 • 01010111 • 00000110 • 00000101 2 of 6

  4. What is 251 in binary? • 11111111 • 11111101 • 11111011 • 11110111 • 11101111 3 of 6

  5. What is 11001010 in decimal? • 128 • 192 • 200 • 202 • 204 4 of 6

  6. What is 11111111 in decimal? • 128 • 192 • 254 • 255 • 256 5 of 6

  7. What is 00110011 in decimal? • 35 • 45 • 51 • 55 • 61 6 of 6

  8. After 6.2

  9. What is the highest host address for the 192.168.0.0/24 subnet? • 192.168.0.0 • 192.168.0.1 • 192.168.255.254 • 192.168.0.254 • 192.168.0.255 1 of 6

  10. What is the highest host address for the 10.0.0.0/8 subnet? • 10.0.0.1 • 10.0.0.254 • 10.0.255.254 • 10.255.255.254 • 10.255.255.255 2 of 6

  11. What is the highest host address for the 10.0.0.0/25 subnet? • 10.0.0.1 • 10.0.0.30 • 10.0.0.62 • 10.0.0.126 • 10.0.0.254 3 of 6

  12. What is the broadcast address for the 172.16.10.0/25 subnet? • 172.16.255.255 • 172.16.10.255 • 172.16.10.0 • 172.16.10.127 • 172.16.10.63 4 of 6

  13. What is the broadcast address for the 10.0.0.0/27 subnet? • 10.255.255.255 • 10.0.0.15 • 10.0.0.31 • 10.0.0.127 • 10.0.0.255 5 of 6

  14. What is the broadcast address for the 147.144.32.0/19 subnet? • 147.144.255.255 • 147.144.32.255 • 147.144.32.63 • 147.144.63.255 • 147.144.127.255 6 of 6

  15. Review

  16. What is the broadcast address for the 192.168.10.0/25 subnet? • 192.168.255.255 • 192.168.10.255 • 192.168.10.0 • 192.168.10.127 • 192.168.10.63 1 of 4

  17. What is the broadcast address for the 10.0.0.0/10 subnet? • 10.255.255.255 • 10.127.255.255 • 10.63.255.255 • 10.31.255.255 • Something else 2 of 4

  18. What is the largest host address for the 147.144.128.0/28 subnet? • 147.144.128.14 • 147.144.128.254 • 147.144.128.30 • 147.144.255.254 • Something else 3 of 4

  19. What is the largest host address for the 147.144.128.0/18 subnet? • 147.144.191.254 • 147.144.255.254 • 147.144.128.254 • 147.144.192.254 • Something else 4 of 4

  20. Visualizing Subnetting With a Square

  21. Subnetting Chart

  22. Learn to Make This Chart

  23. After 6.4

  24. How many bits are there in an IPv6 address? • 8 • 16 • 32 • 64 • 128 1 of 4

  25. A host has an address of 10.255.240.15 and a subnet mask of 255.255.128.0. What is the network address? • 10.0.0.0 • 10.128.0.0 • 10.255.0.0 • 10.255.128.0 • 10.255.240.0 2 of 4

  26. A host has an address of 172.17.128.150 and a subnet mask of 255.255.255.192. What is the network address? • 172.17.128.0 • 172.17.128.32 • 172.17.128.64 • 172.17.128.128 • 172.17.128.192 3 of 4

  27. A company has the IP address range 192.168.1.0/24 and needs to subnet it into four networks, each large enough for 40 hosts. What is the first subnet? • 192.168.1.0/24 • 192.168.1.0/25 • 192.168.1.0/26 • 192.168.1.0/27 • Something else 4 of 4

  28. Correction to Online Materials Many numbers are wrong in the chart on 6.3.3. Just ignore it.

  29. 192.168.11.0 /23 192.168.11.0 /24 192.168.11.0 /25 192.168.11.0 /26 Something else We are using the 192.168.11.0/24 network, starting at 192.168.11.0. What is the subnet for network HQ LAN1?

  30. 192.168.11.64 /26 192.168.11.128 /26 192.168.11.192 /26 192.168.12.0 /26 Something else We are using the 192.168.11.0/24 network, starting at 192.168.11.0. What is the subnet for network HQ LAN2?

  31. 192.168.11.192 /27 192.168.11.192 /28 192.168.11.192 /29 192.168.11.192 /30 Something else We are using the 192.168.11.0/24 network, starting at 192.168.11.0. What is the subnet for network BR1?

  32. 192.168.11.196 /30 192.168.11.200 /29 192.168.11.208 /29 192.168.11.224 /29 Something else We are using the 192.168.11.0/24 network, starting at 192.168.11.0. What is the subnet for network BR2?

  33. Which line contains an error in the network address?

  34. SubnettingiClicker Problem 2

  35. 112.47.253.0/23 112.47.253.0/24 112.47.253.0/25 112.47.253.0/26 Something else We are using the 112.47.253.0/24 network. What is the subnet for network HQ LAN1?

  36. 112.47.253.0/25 112.47.253.0/26 112.47.253.64/26 112.47.253.128/26 Something else We are using the 112.47.253.0/24 network. What is the subnet for network HQ LAN2?

  37. 112.47.253.160/27 112.47.253.192/28 112.47.253.192/29 112.47.253.208/30 Something else We are using the 112.47.253.0/24 network. What is the subnet for network BR1?

  38. 112.47.253.198/30 112.47.253.200/30 112.47.253.200/31 112.47.253.208/30 Something else We are using the 112.47.253.0/24 network. What is the subnet for network LINK?

  39. 192.168.11.64 /26 192.168.11.128 /26 192.168.11.192 /26 192.168.12.0 /26 Something else We are using the 192.168.11.0/24 network, starting at 192.168.11.0. What is the subnet for network HQ LAN2?

  40. 192.168.11.192 /27 192.168.11.192 /28 192.168.11.192 /29 192.168.11.192 /30 Something else We are using the 192.168.11.0/24 network, starting at 192.168.11.0. What is the subnet for network BR1?

  41. 192.168.11.196 /30 192.168.11.200 /29 192.168.11.208 /29 192.168.11.224 /29 Something else We are using the 192.168.11.0/24 network, starting at 192.168.11.0. What is the subnet for network BR2?

  42. Which line contains an error in the network address?

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