Subnet Block Size

Card Set Information

Author:
Anonymous
ID:
109048
Filename:
Subnet Block Size
Updated:
2011-10-15 13:45:46
Tags:
Subnet Block Size
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Description:
Subnet Block Size
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  1. 256 - 128
    • Block size of 128
    • 1 bit on 7 off
    • 2 networks
    • 128-2=126 hosts
  2. 256 - 192
    • Block size of 64
    • 2 bits on 6 off
    • 4 networks
    • 64 -2=62 hosts
  3. 256 - 224
    • Block size of 32
    • 3 bits on 5 off
    • 8 subnets
    • 32-2= 30 hosts
  4. 256 - 240
    • Block size of 16
    • 4 bits on 4 off
    • 16 subnets
    • 16-2=14 hosts
  5. 256 - 248
    • block size of 8
    • 5 bits on 3 off
    • 32 subnets
    • 8-2=6 hosts
  6. 256 - 252
    • block size of 4
    • 6 bits on 2 off
    • 64 subnets
    • 4-2=2 hosts
  7. 256 - 254
    • block size of 2
    • 7 bits on 1 off
    • 128 subnets
    • 2-2=0 hosts
  8. 256 - 255
    1

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