Subnet mask question
-
i am not too sure about the answer..can u guys help?
Question: If you have been given this IP ad - 192.108.100.0, what network mask should you use if you want EIGHT separate broadcast domains
Answer:
2(4) = 16
256-16 = 240
Subnet Mask = 255.255.255.240 -
-
yes..however it is assumed that it require all of the 8 subnets are usable
-
But that's not true in real life. In real life, the first and the last subnet is not usable.
-
EIGHT separate broadcast domains
does it mean that all 8 are working? -
All 0s = calculate subnet address
All 1s = calculate broadcast address
How many do you think you have if you use 2^3? -
8 but only 6 are usableOriginally posted by ndmmxiaomayi:All 0s = calculate subnet address
All 1s = calculate broadcast address
How many do you think you have if you use 2^3?
but is the question stating it wants 8 usable? -
You ask me, I ask who?Originally posted by StarPuppy:8 but only 6 are usable
but is the question stating it wants 8 usable?
You asked this question, isn't it?
-
i blur ma..dun understand the questionOriginally posted by ndmmxiaomayi:You ask me, I ask who?
You asked this question, isn't it? -
-
hmm i'm starting to get this.. do u mean u want 8 valid IP addresses?
according to the calculator..
u only can have (these are class c)
1 sub nets each 254hosts
(notice the 2 ends of ip address.. the more subnet, the more hosts wasted)
2 subnets 126 vaild hosts
4 subnets 62 vaild hosts
8 subnets 30 vaild hosts
16subnet 14 vaild hosts
32 subnet 6 vaild hosts
if u want to make 8 its impossible... correct me if wrong. either u get 6 or 14 -
Borrow bits...
6 is not enough.
14 is more than enough, so 14 is used. -
naturally..but if its asking for 8 valid subnets..the closest would be 14Originally posted by manyu882:hmm i'm starting to get this.. do u mean u want 8 valid IP addresses?
according to the calculator..
u only can have (these are class c)
1 sub nets each 254hosts
(notice the 2 ends of ip address.. the more subnet, the more hosts wasted)
2 subnets each 126 hosts
4 subnets each 62 hosts
8 subnets each 30 hosts
16subnet each 14 hosts
32 subnet each 6 hosts
if u want to make 8 its impossible... correct me if wrong. either u get 6 or 14
