HEROKU-ARCHITECT Online Practice Questions and Answers

Universal Containers is developing a Salesforce app thatinvokes a Heroku app's web service, which asynchronously generates customer invoices. The Heroku app is deployed to a Private Space. When an invoice is ready, the Heroku app sends a POST request to the Salesforce REST API. Which two options should an Architect recommend to ensure that neither the Salesforce nor the Heroku app is accessible from the public internet? Choose 2 answers.

A. Restrict the Private Space's trusted IP range to Salesforce IP addresses

B. Restrict the Private Space's trusted IP range to Universal Containers' VPN

C. Restrict the Salesforce connected app's login IP ranges to Universal Containers' VPN

D. Restrict the Salesforce connected app's login IP ranges to the stable outbound IP addresses of the Private Space

A client is running an app on 20 Standard-2x dynos. They are noticing highly variable performance when the application is experiencing a heavy load. Which two suggestions should an Architect make in this scenario? (Choose two.)

A. Configure the app to use Standard-lx dynos.

B. Configure the app to use Performance dynos.

C. Install a performance monitoring tool.

D. Add additional Standard-2x dynos.

The Heroku CLI give you the ability to:

A. Leverage the most powerful interface in the galaxy to have complete control over a fully operational battle station

B. Install your own Heroku instance on toyour on-prem servers

C. Use Heroku with an expressive and powerful toolset on the command line

D. Make a mean cup of Java

Universal Containers (UC) has an app that allows a costumer to schedule a compute- intensive job. It allows the costumer to schedule the job on an ad-hoc basis. UC has decided to break up the app into the following services:

-Website: an Interface for their costumers; -Billing: generates monthly invoices based on usage metrics;

-Traffic Cop: manages the job queue, job definitions and job schedule;

-

Job Runner; runs jobs that Traffic Cop queues up. It Is responsible for self-introspection and self-scaling. UC also wants to createa data lake for analytics. What foundational technology and design should an Architect use to manage communication between these services?

A.

Apache Kafka on Heroku as a bus between all services Create topics for billing, jobs, and website clicks Create an additional service, which will subscribe for all topics, and dump every message into a data lake

B.

Heroku Redis, create a large Redis store. Allow each service to place messages with an agreed-upon format into a single queue, backed by the Redis storeServices listen for messages addressed to them and take action on them. Redis will serve as the data lake.

C.

Heroku Connect and Salesforce Sync all relevant data into Salesforce and allow it to flow into each service Create custom objects for each serviceand alow them to post to each others' objects as needed. Push data from Salesforce into Heroku Postgres for a data lake.

D.

Apache Kafka on Heroku Create a Kafka queue for each service. Create a central routing service that connects to all of the Kafka queues and routes data. The central router is attached to a data lake, and pushes every message into It.

Universal Containers wants to help their dispatches determine the length of time a Work Order should last. What should the Consultant implement to help achieve this goal?

A. Operating Hours for Customer Accounts.

B. Work Types with an Estimated Duration.

C. Work Orders with Operating Hours

D. Work Types with Service Level Agreement.

Applications on Heroku that use Salesforce REST APIs can use which authentication mechanisms:

A. Username and password with an OAuth connected app

B. None of these

C. OAuth web or user-agent flow in which the user authorizes a connected app using browser redirects

D. Anonymous access without credentials on trusted networks

Thebest use of Canvas apps is to:

A. Render custom widgets on Chatter feeds

B. All of these

C. Display third-party apps in Salesforce

D. Display real estate photos in Salesforce for house listings

Universal Containers needs to write their Heroku application's logs to twodestinations: an on-premise Syslog log server and a cloud analytics provider that ingests logs using an HTTPS endpoint. What should an Architect recommend in this scenario?

A. Publish all logs to Apache Kafka on Heroku, and create a separate app thatconsumes and distributes log messages.

B. Write all logs to Heroku Redis as a buffer and use an add-on to send them to both destinations.

C. Add a logging library to the application source that sends all logs directly to both destinations.

D. Write all logs to stdout, and configure a separate log drain for each destination.

you can build Canvas apps and run them on Heroku with of the following languages:

A. Node, js / JavaScript

B. All of these

C. Python

D. Java, Scala, Clojure

E. PHP

Universal Containers is preparing to deploy a high-volume production web application to the Heroku Common Runtime. Which two best practices should an Architectrecommend for large-scale load testing of the application? Choose 2 answers.

A. Open a ticket with Heroku support for approval.

B. Move the apps into a Private Space to provide an isolated test environment

C. Disable autoscaling to prevent applicationstartup overhead from skewing results

D. Ensure that the application runs on Performance-tier dynos