Heroku-Architect Free Practice Test

For which two use cases should an Architect recommend using Heroku Redis? (Choose two.)

1. A. Providing long-term data warehousing
2. B. Adding jobs to a queue
3. C. Providing a data cache layer
4. D. Querying relational data

Correct Answer: AD

A client wants to secure their web application using SSL/TLS. They do not have specific requirements regardingusing a particular version of SSL/TLS.
Which two Heroku features should an Architect recommend as options? (Choose two.)

1. A. Heroku Private Spaces
2. B. Automated Certificate Management
3. C. Heroku SSL
4. D. Heroku Shield Private Spaces

Correct Answer: BC

Universal Containers has a microservices architecture on Heroku. One microservice. named the Metrics Microservice. periodically fetches metrics from a fleet of loT sensors. Then, the Metrics Microservice is required to send relevant metrics to each of the other microservices using REST. When a new microservice is added to the architecture, the Metrics Microservice must send metrics to that new microservice too. As a result, adding microservices to the architecture causes performance issues. How should an Architect recommend changing this architecture to improve its scalability?

1. A. Configure each microservices to directly fetch the sensor metrics that are relevant to it.
2. B. Use Private Space DNS Service Discovery to reduce the amountof time required for the Metrics Microservice to obtain each other microservice's IP address
3. C. Configure the other microservices to pull the Metrics Microservice for updates every five seconds
4. D. Use Apache Kafka on Heroku to publish metrics to a topic that the other microservices can consume.

Correct Answer: D
https://devcenter.heroku.com/arlicles/heroku<onnect-faq#can-i-use-sharing-rules-to-restrict-recorcd-visibility

Which two logs and logging recommendations are prescribed by the Twelve-Factor app methodology? Choose 2 answers.

1. A. Apps should not concernthemselves with routing or storing logs
2. B. Logs from all processes and backing services should be aggregated together.
3. C. Logs should be written to a shared file system for scalability.
4. D. Apps should only keep a limited, rolling buffer of logs available

Correct Answer: AB
- https://devcenter heroku com/articles/internal-routing

A client currently runs a Ruby script in aone-off dyno each time they deploy their Go application to Heroku. The development team wants the script to be executed before the application is deployed because it performs necessary database migrations. Which approach should an Architect recommend?

1. A. Modify the Go buildpacK to install Ruby, and run the script from the _profile
2. B. Convert the Ruby release script to Go and execute it on application startup
3. C. Use both Go and Ruby language buildpacks, and run the Ruby script with release phase
4. D. Define different process types for the Ruby script and the Go application in the app's Profile.

Correct Answer: C
- There are many scenarios in which a single buildpack is not sufficient when building an application. This includes cases when you need to: Run abuildpack for each language your app uses For example, run a JavaScript buildpack for assets and a Ruby buildpack for your application Run a daemon process such as pgbouncer with your application. Pull in system dependencies with apt. You can check the following for more information: https://devcenter heroku com/articles/using-multiple-buildpacks-for-an-app