From what i know of these kind of questions they usually expect you to have each group on a different subnet (in this case 5)
Also i'd say /27 will not be enough for the R+D department. Remember up to 100% growth... so they need to be able to grow to up to 18*2 nodes.
Also i'd say /27 will not be enough for the R+D department. Remember up to 100% growth... so they need to be able to grow to up to 18*2 nodes.
