How many Class C subnets are available in the following ip address?
10.100.64.0 /22
I just got off the phone for a networking interview and this was the question. After approaching it from several angles, I'm not sure how to calculate this (or if perhaps I'm being thrown off by the specific language in the question).
Answer:
I'm currently using this line of thought as my answer... "zero Class C subnets are available" because it starts with 10.x.x.x which would indicate a Class A address.
As you note, 10.x.x.x is in the class A address block, so there are no class Cs, but as Reza notes, if what was meant was how many class C subnets can you get from a /22 the answer is 4.
Thanks for chiming in Joseph. I feel a little better about noticing the Class A address on my end. And yes, I'm also thinking now that the answer very well could have been 4. Appreciate your comment.
Thank Reza. I like that! Based on the fact that you were able to creatively interpret this question and come up with "Class C" answer, I'm going to say you probably have detailed something about what was being asked for. While I'm still not sure exactly what the expected answer was, I really appreciate your input.
