Subnetting Questions 21 | Calculate Subnet Mask from IP Address

Subnetting Questions 21

With an IP address starting at 200, you currently have 10 subnets. What subnet mask should you use to maximize the number of available hosts?

A. 192
B. 224
C. 240
D. 248

Solution

A/Q we have minimum 10 Subnet. It means we have to borrow 4 bits which is equal to 24=16.

11110000

So the value of network bits is 27+26+25+24=240

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