Describe the Tenets of the "12-Factor App" 350-901 Practice Questions (Page 2)

Questions 6–10

1. 6foundation · easy

   What is a key benefit of treating backing services as attached resources in a 12-factor app?

   • AIt allows swapping backing services without code changes.
   • BIt reduces the number of dependencies.
   • CIt eliminates the need for configuration.
   • DIt ensures the backing service is always available.
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2. 7foundation · easy

   What is the benefit of running a 12-factor app as stateless processes?

   • AIt allows the app to run on a single server only.
   • BIt eliminates the need for a database.
   • CIt enables horizontal scaling by adding more process instances.
   • DIt makes the app run faster.
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4. 8foundation · easy

   Why should administrative tasks use the same codebase and configuration as the app?

   • ATo avoid the need for version control.
   • BTo ensure the admin task operates on the same data and logic as the app.
   • CTo allow admin tasks to run on any machine.
   • DTo reduce the number of scripts needed.
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5. 9application · medium

   A team is running a 12-factor application in a Kubernetes cluster. The application currently writes log messages to a file in the container's filesystem. The team wants to centralize log collection and make the application more resilient to container restarts. What should the team do?

   • AConfigure the application to write logs to a shared network filesystem so they persist across restarts.
   • BStore logs in a sidecar container that shares a volume with the main application container.
   • CHave the application write logs to stdout, and use a log collector like Fluentd to forward them to a central system.
   • DUse a logging library that sends logs directly to a central log management service over the network.
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6. 10foundation · easy

   In the 12-factor app methodology, how does an app achieve concurrency?

   • ABy using a single process that handles all requests sequentially.
   • BBy using multiple threads within a single process.
   • CBy using a load balancer to distribute requests to different servers.
   • DBy running multiple instances of the app as separate processes.
   Reveal Solution Discussion Select an answer first