Refer to the exhibit.
An engineer must apply IP addressing to five new WAN sites and chooses the new subnets pictured. The previous administrator applied the addressing at Headquarters. Which is the minimum summary range to cover the existing WAN sites while also allowing for three additional WAN sites of the same size, for future growth?
A. 10.0.60.0/18
B. 10.0.64.0/18
C. 10.0.64.0/17
D. 10.0.0.0/17
Answer is B. C is wrong because /17 increments in 128, and you cant start incrementing in 128, starting from 64. Need to start at 0, which would be D. But that is too large a range than whats needed.
The correct answer should be B.
Answer was B