An organization is granted the block 130.56.0.0/16. The administrator wants to…
2022
An organization is granted the block 130.56.0.0/16. The administrator wants to create 1024 subnets.
Find the number of addresses in each subnet
Answer: B. 64 — Answer: 64 addresses per subnet. Workings: Number of subnets required = 1024 = 2^10, so we must borrow 10 bits from the host portion of the /16 network. New…
- A.
32
- B.
64
- C.
128
- D.
16
Attempted by 267 students.
Show answer & explanation
Correct answer: B
Answer: 64 addresses per subnet.
Workings:
Number of subnets required = 1024 = 2^10, so we must borrow 10 bits from the host portion of the /16 network.
New subnet prefix = /16 + 10 = /26.
Addresses per subnet = 2^(32 - 26) = 2^6 = 64 addresses.
If usable host addresses are requested (excluding network and broadcast), usable hosts per subnet = 64 - 2 = 62.
Therefore each subnet contains 64 addresses.
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