How many /30 subnets can be derived from a single /27 Class C subnet? 01/09/2017 – by Admin_VCEguide 0 Using VLSM, how many /30 subnets can be derived from a single /27 Class C subnet? A. 1 B. 2 C. 4 D. 8 E. 12 F. 16 SHOW ANSWERSCorrect Answer: D Explanation/Reference: answer is absolutely right.