A company has been given a Class C address to be utilized for all devices. The company has
several subnets and the largest subnet has 15 hosts. Which of the following represents the
MINIMUM CIDR notation of this subnet mask?
A.
/26
B.
/27
C.
/28
D.
/29
Explanation:
Remember the question is:
What is the MINIMUM CIDR notation of the subnet mask? /26 /27 /28 /29..?
Class C
ie, the subnet mask for class is 24…
A B C D
8 16 24 32
Soustract the subnet mask from the subnet mask given.
26 27 28 29
24 24 24 24
——————————
2-2=0, 3-2=1, 4-2=2, 5-2=3
answer, the minimum CIDR is /27
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