Implementing Application Infrastructure

71. You are working on an application that will be deployed in two different Azure Regions to allow for failover scenarios. Which of the following together make a valid solution? [Choose two.]
    1. You create one ARM template with two parameter files. The first parameter file corresponds to the first Azure region, and the second parameter file to the second Azure region. You use the ARM templates to update the infrastructure.
    2. You create an ARM template and parameter file to update the infrastructure in one region only. In the other region, you update the infrastructure manually to prevent configuration drift.
    3. You first update the infrastructure in both regions. Only when the infrastructure is updated successfully do you deploy the application to both regions.
    4. You first update the infrastructure in one region, followed by a deployment of the application...