HOTSPOT
You have a DHCP server named Server1 that runs Windows Server 2012 R2.
On Server1, you run the commands as shown in the exhibit. (Click the Exhibit button.)
To answer, complete each statement according to the information presented in the exhibit. Each
correct selection is worth one point.
Answer: 
Can someone please explain?
Check out this link from Ver 3 dump.
The comments from dbKarlo helped me to better understand the second part of the question.
Answer should be as,
1) 192.168.10.250
2) 210 ( as rang starts with 192.168.15.11 end with 192.168.15.230) with the last octet has 11 to 110 is 100 IDs, then 111 to 210 is total 200 IDs, now + 20 answer should be 220.
I dont understand why in another post they reply that answer 1) is …15.250″ and not …10.250
I think the answers are correct since it was indicated on the question “From Server1 when the computer is connected to the 192.168.15.x” which disregard the MAC address reservation IP of AABBCCDEEFF client.
Just correct me if im wrong 🙂