Find NID and Host ID bits, given destination address & mask to apply.

Question

from MadeEasy test series.

Comments

Option C is correct..

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Is option C correct because this IP belongs to class B, because otherwise option A also seems to be correct

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answer = option C

Destination address implicitly defines Classfull Addressing mask to get NID
Router applies a Subnet Mask.

Answer 1

answer = option C

Class B NID = 154.33.0.0
$31^{st}$ subnet, subnet bits = 0000 0111 11
Host bits = last 6 bits from destination address = 01 1100