An office has 8 floors with approximately 30-40 users per floor. One subnet must be used. Which command must be configured on the router Switched Virtual
Interface to use address space efficiently?
Click on the arrows to vote for the correct answer
A. B. C. D.B
In this scenario, the office has 8 floors, each with approximately 30-40 users. Since only one subnet must be used, the available address space needs to be used efficiently. This means that the subnet mask should be chosen in a way that allows for enough hosts per subnet while minimizing wastage of address space.
Option A: ip address 192.168.0.0 255.255.0.0
This subnet mask would allow for a large number of hosts (up to 65,534) in the same subnet. However, it is too large for this scenario, as it would allow all 240-320 users to be in the same broadcast domain, which could lead to broadcast storms, security issues, and performance degradation.
Option B: ip address 192.168.0.0 255.255.254.0
This subnet mask would allow for up to 510 hosts per subnet, which is more than enough for each floor's 30-40 users. It would also ensure that each floor has its own broadcast domain, which would improve network performance and security.
Option C: ip address 192.168.0.0 255.255.255.128
This subnet mask would allow for up to 126 hosts per subnet. While this is sufficient for each floor's user count, it would result in a significant amount of wasted address space. Each floor would require its own subnet, but the given subnet mask would only allow for two subnets in the 192.168.0.0 network. This would require the use of a secondary IP address or another subnet range.
Option D: ip address 192.168.0.0 255.255.255.224
This subnet mask would allow for up to 30 hosts per subnet, which is just enough for each floor's user count. However, it would result in significant wastage of address space, as each floor would require its own subnet. This subnet mask would allow for 8 subnets in the 192.168.0.0 network, but only one is required.
Therefore, the best option is B: ip address 192.168.0.0 255.255.254.0. It allows for up to 510 hosts per subnet and ensures that each floor has its own broadcast domain while minimizing address space wastage.