An office has 8 floors with approximately 30-40 users per floor. What command must be configured on the router Switched Virtual Interface to use address space efficiently?

The correct answer is B. ip address 192.168.0.0 255.255.254.0. 8 bits = (2^8 – 2) =254 IP addresses, and it’s not enough. 9 bits = (2^9 – 2) = 510 IP addresses, and this is enough. You have a class C subnet (192.168.0.0). This means a subnet mask like this: But you need 9 bits for the hosts, so you’ve got left with a subnet mask like this: 2

Submitted by layla.eg· Mar 5, 2026

Question

An office has 8 floors with approximately 30-40 users per floor. What command must be configured on the router Switched Virtual Interface to use address space efficiently?

Options

Aip address 192.168.0.0 255.255.0.0
Bip address 192.168.0.0 255.255.254.0
Cip address 192.168.0.0 255.255.255.128
Dip address 192.168.0.0 255.255.255.224

How the community answered

(25 responses)

A
4% (1)
B
72% (18)
C
8% (2)
D
16% (4)

Explanation

8 bits = (2^8 – 2) =254 IP addresses, and it’s not enough. 9 bits = (2^9 – 2) = 510 IP addresses, and this is enough. You have a class C subnet (192.168.0.0). This means a subnet mask like this: But you need 9 bits for the hosts, so you’ve got left with a subnet mask like this: 255.255.1111111x.xxxxxxxx =255.255.254.0 This means you will use VLSM subnetting.

Topics

#Subnetting#IP Addressing#SVI Configuration#Network Planning

Community Discussion

No community discussion yet for this question.

Full 200-301 Practice