Supernetting Question !!

This question is not legitimate. There is no such thing as a subnet mask of 255.255.253.0. The broadcast address should be changed to something else, e.g. 192.168.3.255, in order for the question to be valid.

This question is certainly not valid as far as subnetting is concerned but i was not really sure about the supernetting concept because in this question there is supernetting hapenning for sure. So i thought may be supernetting has any such concept, but you vindicated my stand.

Well, as far as the broadcast address of 192.168.2.255 is concerned it can be valid if the subnet mask is 255.255.254.0 which would create the first subnet range of 192.168.0.0 - 192.168.2.255, but the subnet mask of 255.255.254.0 was not a valid option in the question so i was confused about the correct answer.

This question is certainly not valid as far as subnetting is concerned but i was not really sure about the supernetting concept because in this question there is supernetting hapenning for sure. So i thought may be supernetting has any such concept, but you vindicated my stand.

Well, as far as the broadcast address of 192.168.2.255 is concerned it can be valid if the subnet mask is 255.255.254.0 which would create the first subnet range of 192.168.0.0 - 192.168.2.255, but the subnet mask of 255.255.254.0 was not a valid option in the question so i was confused about the correct answer.

hi tarun i gave the same test.. even im confused abt the answer.. one thing which i know is that it might be a case that supernetting is being done as we are usig the network part to make hosts... it'll be gr8 if some one can give the answer before my brain blows out...HELP !!!!!!

As applied to the network 192.168.0.0, if you have the mask 255.255.254.0, your broadcast address will be 192.168.1.255. The question was incorrect, it happens. Just let whoever is administering it know about the error.

Yes, the address 192.168.2.255 can be a valid broadcast address. Example: Network is 192.168.1.0 with a mask of 255.255.254.0.

Wow, perfect buddy, i agree with you completely.

But i want more people in this forum to reply to this so that i am dead sure before i go ahead & bring this infront of my adminstration because it could have serious repurcussions

That's cool. With CIDR though, it follows the same basic rules with subnetting. CIDR is a hierarchal design that allows ISP's to advertise many networks as one (example; 192.168.0.0/16) and from there they can subnet it out to various customers. It's a way to reduce the internet routing table. I know others (Chris, the Bishop or whoever...) can explain this great for you.