Hotspot Question
You are developing a multi-tier app named App1 that will be hosted on Azure virtual machines.
The peak utilization periods for App1 will be from 8 AM to 9 AM and 4 PM to 5 PM on weekdays.
You need to deploy the infrastructure for App1. The solution must meet the following requirements:
- Support virtual machines deployed to four availability zones across
two Azure regions.
- Minimize costs by accumulating CPU credits during periods of low
utilization.
What is the minimum number of virtual networks you should deploy, and which virtual machine size should you use? To answer, select the appropriate options in the answer area.

Correct Answer:

Explanation:
Box 1: 2
You need at least one virtual network per Azure region for the local resources, hence since you have two Azure regions, you'll need at least 2 virtual networks.
Box 2: B-Series
The B-Series VM size is the best choice here because of the ability to bank CPU credits during periods of low utilization. The B-series are burstable VMs that accumulate CPU credits during idle times and then consume these credits during periods of high CPU usage. This matches well with your requirement to minimize costs by accumulating CPU credits during periods of low utilization.
Other series like A-Series, D-Series, and M-Series do not have this functionality.