Universal Containers experienced an outage with their production Heroku Postgres database due to a fault with the underlying infrastructure. The database was unavailable for an hour. The database is on the Standard-0 plan.
Which two actions should an Architect recommend to mitigate such database failures and outages in the future? (Choose two.)

• A.Create a follower database that uses the same plan as the leader.
• B.Migrate the database to a Premium-tier plan.
• C.Migrate the database to a larger Standard-tier plan.
• D.Create a fork of the database that uses the same plan as the leader.

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A client has a web application that persists data to a local JSON file. They are migrating the application to Heroku. In order for the application to conform to the Twelve-Factor methodology, what changes should an Architect recommend?

• A.The application should use at least 2 dynos to ensure that the JSON file is highly available.
• B.The application should be stateless and therefore not persist data at all.
• C.The application should persist the data to a local SQLite database.
• D.The application should persist the data to a database add-on.

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Part of a client's design is the ability to easily share between two applications running on Heroku.
What should an Architect recommend?

• A.Provision Apache Kafka on Heroku to easily stream the data between the two apps.
• B.Create Foreign Data Wrappers to expose the tables from one database to another.
• C.Provision Heroku Connect to sync the data into a custom object in Salesforce.
• D.Attach a single storage add-on, such as Heroku Postgres, to both applications.

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A client has a requirement to deploy versions of their app to different regions around the World. Which Heroku Enterprise feature would an Architect recommend to accomplish this?

• A.Using a Heroku StMM Space an app can be deployed to a specific region at the time of app creation.
• B.When creating a Heroku Private Space, you can determine the specific geographic location for the space
• C.You can changed the region for any app in any runtime by using the Heroku CLI.
• D.Using the Common Runtime, an app will automatically be deployed to multiple regions.

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A client has a Heroku app that uses Apache Kafka on Heroku. They want to refactor the app into 2 distinct apps that will both continue to use Kafka (because they probably don't have so much to do in their life). Based on this refactoring, what should an Architect recommend?

• A.Attach the existing Kafka add-on to one app and attach a new Kafka add-on to the other app
• B.Attach the existing Kafka add-on to both apps
• C.Designate one app as a producer and the other as a consumer
• D.Ensure that the apps consume mutually excliusive sets of Kafka topics

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