50 Ipv4 Subnetting Practice Questions (With Answer Key)

1. What is the first valid host address on the subnet that host 192.168.48.124/27 belongs to?

2. What valid host range is IP address 172.23.23.18/22 part of?

3. What valid host range is IP address 192.168.25.148, 255 .255.255.240 part of?

4. You have subnetted the 192.168.14.0 network into 8 subnets. What is the valid host range of the third subnet?

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5. You need to assign your server the last valid host address on the 5  subnet of the network 172.16.0.0/19. What address would you assign?

6. What valid host range is the IP address 172.18.87.112, 255.255.252.0 part of?

7. What is the broadcast address of the subnet that host 172.18.182.245/23 is part of?

8. What is the last valid host address on subnet 172.30.14.0, 255.25 5.254.0?

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9. Your router needs to be assigned the first valid host address if the 2  subnet on network 192.168.4.0/28. What address would you assign?

10. What is the last valid host address on the subnet that host 192.168.48.124/27 belongs to?

11. What is the last valid host address for the subnet 10.81.0.0, 255.255.240.0?

12. You need to subnet 192.168.4.0 into 7 different subnets. What subnet mask would you use?

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13. How many subnets and hosts per subnet can you get fro m the network 172.28.0.0/26?

14. Your company needs to subnet their network to allow for 27 subnets while having as many host addresses available as possible. What subnet mask would you use on the 172.23.0.0 network to accomplish this?

15. How many subnets and hosts per subnet can you get from the network 192.168.119.0/27?

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16. What is the last valid host address on the subnet 172.20.208.0/21?

17. What is the broadcast address of network 172.31.16.0/21?

18. What is the broadcast address of network 172.17.44.0/23?

19. You have a point-to-point connection that needs exactly two usable host addresses. What subnet mask should you use?

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20. What is the valid host range of the sixth subnet for network 172.24.0.0/23

21. You need to divide the 192.168.200.0 network into 7 subnets. Each subnet needs at least 18 host addresses. What subnet mask should you use for this?

22. What valid host range is the IP address 172.16.24.96/23 a part of?

23. How many subnets and hosts per subnet can you get from the network 172.31.0.0/19?

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24. You need to assign your router t he first valid host address on the 4  subnet of network 192.168.74.0/27. What address would you use?

25. What subnet does host 172.29.91.114/20 belong to?

26. What is the valid host range for subnet 1 72.16.32.0/20?

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27. What is the valid host range of the subnet that host 192.168.28.67, 255.255.255.224 is part of?

28. How many subnets and hosts per subnet can you get fro m the network 172.23.0.0, 255.255.255.240?

29. What is the broadcast address of the network 192.168.32.96/27?

30. What is the first valid host address on the subnet that host 192.168.15.54/26 belongs to?

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31. What is the broadcast address of the network 192.168.40.48/29?

32. What is the broadcast address of the subnet that host 10.17.255.255/13 is part of?

33. Which subnet does host 172.16.41.187/20 belong to?

34. What is the last valid host address on the subnet 10.16.0.0/13?

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35. Which subnet does host 172.16.255.47/22 belong to?

36. Network 192.168.10.0 needs to be divided into 6 subnets, with at least 25 hosts in each subnet. What subnet mask would you use to accomplish this design goal?

37. What is the last valid host address on the subnet that host 192.168.62.26/28 belongs to?

38. What is the first valid host address on the subnet that host 172.16.23.145, 255.255.224.0 belongs to?

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39. What subnet does host 172.16.5.29/18 belong to?

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40. Your server needs to be assigned the last usable host address on the 5  network 172.16.0.0/20. What address would you assign to the server?

41. What is the first valid host address on the subnet that host 172.28.54.35/28 belongs to?

42. What is the last valid host address for the subnet 10.84.128.0/20?

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43. Which subnet does host address 192.168.200.205/29 belong to?

44. You have been given the 192.168.5.0 network. You need to design a subnet mask that will give you 5 subnets with up to 30 hosts each. What mask should you use?

45. How many subnets and hosts per subnet can you get from the network 172.16.0.0/18?

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46. What is the broadcast address of network 10.14.64.0/20?

47. What subnet does host address 192.168.5.57/27 belong to?

48. What valid host range is the IP address 172.16.42.74/22 a part of?

49. What is the broadcast address of the network 192.168.93.0/25?

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50. You need to assign a server the last host address on the subnet 172.19.144.0/20. What I P address would you adding?

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1. 192.168.48.97

26. 172.16.32.1 through 172.16.47.254

2. 172.23.20.1 through 172.23.23.254

27. 192.168.28.65 through 192.168.28.94

3. 192.168.25.145 through

28. 4096 Subnets with 14 hosts each

192.168.25.158

29. 192.168.32.127

4. 192.168.14.65 through 192.168.14.94

30. 192.168.15.1

5. 172.16.159.254

31. 192.168.40.55

6. 172.18.84.1 through 172.18.87.254

32. 10.23.255.255

7. 172.18.183.255

33. 172.16.32.0

8. 172.30.15.254

34. 10.23.255.254

9. 192.168.4.17

35. 172.16.252.0

10. 192.168.48.126

36. 255.255.255.224 (/27)

11. 10.81.15.254

37. 192.168.62.30

12. 255.255.255.224 (/27)

38. 172.16.0.1

13. 1024 Subnets with 62 hosts each

39. 172.16.0.0

14. 255.255.248.0 (/21)

40. 172.16.79.254

15. 8 Subnets with 30 hosts each

41. 172.28.54.33

16. 172.20.215.254

42. 10.84.143.254

17. 172.31.23.255

43. 192.168.200.200

18. 172.17.45.255

44. 255.255.255.224 (/27)

19. 255.255.255.252

45. 4 Subnets with 16,382 hosts each

20. 172.24.10.1 through 172.24.11.254

46. 10.14.79.255

21. 255.255.255.224 (/27)

47. 192.168.5.32

22. 172.16.24.1 through 172.16.25.254

48. 172.16.40.1 through 172.16.43.254

23. 8 Subnets with 8190 hosts each

49. 192.168.93.127

24. 192.168.74.97

50. 172.19.159.254

25. 172.29.80.0

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