Q: Net Masks and the Subnet Calculator

Question

oreoreoreore12

Level 1 (0 points)

Hi,

Regarding the below chart,

Network range would be 0-255

I understand that you need to subtract the IP address of network address and broadcast so I thought it would result to 253.

Although I was told that the correct answer is 254. The subtraction was made from 256-network address-broadcase=254 is what I was informed.

I'm not sure why it gets subtracted by 256? Can someone explain please?

Posted on Sep 1, 2015 2:18 PM

I have this question too

Solved

Level 10 (123,467 points)

A:

Hi,

Because 1 to 255 would be 255 numbers, add zero or start counting from zero & we get 256 numbers to chose from in on Byte/8 bits.

Posted on Sep 1, 2015 5:48 PM

Q: Net Masks and the Subnet Calculator

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Accepted Answer · Sep 1, 2015 5:48 PM

BDAqua

Level 10 (123,467 points)

Sep 1, 2015 5:48 PM in response to oreoreoreore12

Hi,

Because 1 to 255 would be 255 numbers, add zero or start counting from zero & we get 256 numbers to chose from in on Byte/8 bits.