You have a single office with 40 employees. Estimated user workloads are provided; half of each workload type work from home and remote users do not use a VPN to the office. Approximately how much bandwidth is required between the office and Azure to support these workloads?

To calculate the required bandwidth, sum the bandwidth needs for each workload type. For the 20 task workers (half of 40), each requiring 100 Kbps, the total is 20 100 Kbps = 2000 Kbps (2 Mbps). For the 20 knowledge workers, each requiring 250 Kbps, the total is 20 250 Kbps = 5000 Kbps (5 Mbps). The total bandwidth for all 40 users is 2 Mbps + 5 Mbps = 7 Mbps. Since half the users work from home without a VPN to the office, their traffic does not traverse the office-Azure link. Therefore, only the 20 in-office users' traffic needs to be considered for the office-Azure link. The question asks for the total bandwidth required between the office and Azure, which includes both ingress and egress traffic. A common recommendation is to multiply the user bandwidth by a factor of 8 for optimal performance, accounting for various network overheads and peak usage. So, 7 Mbps 8 = 56 Mbps. The closest option is 55 Mbps.