IPv4 Address Classes Flashcards

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Questions and Answers

What is the number of nodes per network in Class A?

  • 254
  • Addresses for multicast
  • 16,777,214 (correct)
  • 65,534

Which range corresponds to Class B?

  • 128.0.0.0 to 191.255.255.255 (correct)
  • 192.0.0.0 to 223.255.255.255
  • 0.0.0.0 to 127.255.255.255
  • 224.0.0.0 to 239.255.255.255

What is the default subnet mask for Class C?

255.255.255.0

Class D addresses are used for unicast transmissions.

<p>False (B)</p> Signup and view all the answers

What is the private range for Class A?

<p>10.0.0.0 to 10.255.255.255</p> Signup and view all the answers

What is the primary purpose of Class E addresses?

<p>Research and experimentation</p> Signup and view all the answers

How many nodes can Class C networks support?

<p>254 (B)</p> Signup and view all the answers

The range for Class D addresses is _____ to _____

<p>224.0.0.0 to 239.255.255.255</p> Signup and view all the answers

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Study Notes

Class A

  • Supports up to 16,777,214 nodes per network.
  • Address range from 0.0.0.0 to 127.255.255.255; 127.0.0.0 reserved for loopback.
  • Private addresses fall within the range of 10.0.0.0 to 10.255.255.255.
  • Default subnet mask: 255.0.0.0.
  • Network ID is represented by the first octet; the last three octets represent the node ID.

Class B

  • Accommodates 65,534 nodes per network.
  • Address range spans from 128.0.0.0 to 191.255.255.255.
  • Private addresses: 172.16.0.0 to 172.31.255.255.
  • Automatic Private IP Addressing (APIPA) range: 169.254.0.0 to 169.254.255.255.
  • Default subnet mask: 255.255.0.0.
  • Network ID is defined by the first two octets while the node ID is represented by the last two octets.

Class C

  • Allows for 254 nodes per network.
  • Address range from 192.0.0.0 to 223.255.255.255.
  • Private addresses: 192.168.0.0 to 192.168.255.255.
  • Default subnet mask: 255.255.255.0.
  • Network ID is indicated by the first three octets, and the last octet represents the node ID.
  • Most widely available address class due to the larger number of Class C networks.

Class D

  • Specifically designated for multicast transmissions.
  • Address range from 224.0.0.0 to 239.255.255.255.

Class E

  • Reserved for research and experimentation purposes.
  • Address range spans from 240.0.0.0 to 255.255.255.255.

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