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The address of class B host is to be split into subnets with 6‐bit subnet number. What is the maximum number of the subnets and the maximum number of hosts in each subnet?

  1. 62 subnets and 262142 hosts
  2. 64 subnets and 1024 hosts
  3. 64 subnets and hosts 262142
  4. 62 subnets and 1022 hosts

Answer (Detailed Solution Below)

Option 4 : 62 subnets and 1022 hosts

Detailed Solution

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Maximum number of subnets,

= 26 - 2 = 62

  • Note that 2 is subtracted from 26=64
  • As per the RFC 950 specification, it reserves the subnet values consisting of all zeros and all ones, hence, reducing the number of available subnets by two.
  • Similarly, number of hosts =210−2=1022
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