B AND D. TO FIND THE ANSWER, YOU SHOULD USE THE PRESUMED ADDRESS A...

12. - CCENT CCNA ICND1 OFFICIAL EXAM CERTIFICATION GUIDE APPENDIXES
CCENT CCNA ICND1 OFFICIAL EXAM CERTIFICATION GUIDE APPENDIXES

12.

B and D. To find the answer, you should use the presumed address and mask and try

to find the subnet number and subnet broadcast address of that subnet. If the subnet

number or broadcast address happens to be the same number you started with, as listed

in the answer, then you have identified the fact that the number is a subnet number or

broadcast address. For this question, note that 10.0.0.0 is a Class A network number,

which is the same value as the zero subnet, no matter what mask is used—so it is

definitely reserved. For 172.27.27.27, mask 255.255.255.252, you will find subnet