Classful Addressing (Solved Question 2) | Summary and Q&A

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June 19, 2022
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Neso Academy
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Classful Addressing (Solved Question 2)

TL;DR

Learn how to determine the number of addresses, as well as the first and last address, in a class B network.

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Questions & Answers

Q: How can you determine the number of addresses and the first and last address in a class B network?

To find the number of addresses, first identify the class of the IP address. In class B, the first two octets are for the network portion. The first address is the network address, while the last address is the broadcast address. Using the formula 2^16, subtract 2 to get the total number of usable addresses.

Summary & Key Takeaways

  • There are five classes of IP addresses, and this video focuses on class B networks.

  • In a class B network, the first two octets represent the network portion, and the last two octets represent the host portion.

  • Class B networks have a possibility of 2^16 hosts and 2^14 networks, with 65,534 usable addresses.

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