Universal Containers collects sensor data from millions of sensors that are located around the World. Now. they want to process this data on Heroku. What are three advantages of using a microservices architecture with Apache Kafka on Heroku in this scenario? Choose 3 answers.
A. Kafka is highly available and fault-tolerant
B. Individual services can be scaled easily for high-volume event processing
C. Consumers and producers can be scaled independently.
D. Individual services can efficiently communicate with each other using REST APIs.
Which technology do SalesforceREST APIs use for authentication?
A. Basic usernames and passwords
B. OAuth
C. SAML
D. Pre-shared keys
Universal Containers wants to set up communication between multiple public-facing Heroku web applications hosted on the Common Runtime. Which solution should an Architect recommend?
A. Movethe application to a Private Space, and enable Internal Routing for them
B. Bind all of the Heroku applications to the same port
C. Configure a worker process type for each application that listens for incoming remote procedure calls.
D. Send requests to each application's URL using HTTP/HTTPS.
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?
A. Configure each microservices to directly fetch the sensor metrics that are relevant to it.
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
C. Configure the other microservices to pull the Metrics Microservice for updates every five seconds
D. Use Apache Kafka on Heroku to publish metrics to a topic that the other microservices can consume.
Universal Containers (UC) is opening offices in Japan and Germany. This will allow them to serve new customers in Asia and in Europe. UC is concerned about application latency for their new customers, especially because the app serves large amounts of dynamic content.
Which Heroku Enterprise feature should an Architect recommend to alleviate this concern?
A. Create Salesforce orgs in each region and use Heroku Connect to link them.
B. Deploy instances of their applications into Private Spaces in Tokyo and Frankfurt.
C. Deploy a globally-distributed CDN in front of the application.
D. Create a Heroku Pipeline to mirror the app and its data in each region.
When creating a Private Space, what is a valid reason to specify a region other than the default region?
A. Private Spaces restrict inbound traffic to the current region.
B. Heroku pricing varies by region.
C. Running an application closer to its intended users can reduce latency.
D. Available compute resources vary by region.
A customer's IT department will not allow VPN access through their on-premise gateway. Users need to be able to access trusted Heroku applications only when they are in the office. These applications are deployed to a Heroku Private Space.
Which two Private Spaces features should an Architect recommend to enable on-premise users to gain the access they need? (Choose two.)
A. Stable outbound IP addresses
B. VPC peering
C. Internal routing
D. Trusted IP ranges
A client's Heroku web application displays data that is fetched from a back-end file storage system. The client now wants this data to be viewable, but not editable, from their Salesforce org. Which recommendation should an Architect make in this scenario?
A. Replicate the files to tables in a Heroku Postgres database, and use Heroku Connect to synchronize the tables to the Salesforce org.
B. Store all file URLs in a Heroku Postgres table, and use Heroku Connect to synchronize the table to the Salesforce org.
C. Replicate the files to tables in a Heroku Postgres database, and use Heroku External Objects to expose the tables to the Salesforce org.
D. Replicate the files to the application's local filesystem, and use worker dynos to periodically sync them to the Salesforce org.
A client wants to migrate their on-premise application to Heroku. The application maintains a local, in-memory cache for its data store to improve performance. What should an Architect advise the client about running the application on Heroku?
A. The application should declare its in-memory cache as a separate process type to preserve it across deploys.
B. All of the application's web dynos will share a single in-memory cache.
C. The application should replicate its in-memory cache to a local disk to preserve it across deploys.
D. The application's in-memory cache might be cleared at any time.
Which two conventions of the Heroku platform reflect the Twelve-Factor methodology's recommendation to "execute the app as one or more stateless processes?" (Choose two.)
A. Log messages from each of an app's dynos are kept separate from each other.
B. Heroku apps define process types in a Procfile.
C. A Heroku app's config vars are deleted on deploys and app restarts.
D. Dynos have an ephemeral filesystem.
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