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IBM Cloud Platform Application Development v2 Sample Questions:

1. Which is a feature provided for both Managed service instances and User-provided service instances in IBM Cloud Foundry?

A) Automatic creation of service instances during application deployment.
B) Automatic encryption of service instance metadata.
C) Expose service instance metadata to applications via the VCAP_SERVICES environment variable.
D) Instance lifecycle management via the Cloud Controller.

2. A developer wants to deploy and start a large application to IBM Bluemix PaaS.
When they enter the command cf push appname, the following error is shown:
0 of 1 instances running, 1 starting 0 of 1 instances running, 1 down FAILED Start app timeout
What option is available for the developer to resolve the issue?

A) Increase the upload timeout in manifest.yml of the application.
B) Increase the staging timeout in manifest.yml of the application.
C) Increase the start timeout in manifest.yml of the application.
D) Increase the deploy timeout in manifest.yml of the application.

3. What is the purpose of the Eureka Netflix OSS component in the IBM Reference implementation of a Cloud native Omnichannel application?

A) Provides a set of configuration management APIs
B) Provides a proxy layer for the microservices
C) Provides a Service Registry
D) Provides an implementation of the Circuit Breaker pattern

4. A developer is building an IBM Cloud Foundry application that uses an enterprise service available as a RESTful API. Following security best practices, how should credentials for the service be stored?

A) As constants in the application source code
B) In a file located within a custom buildpack
C) In a properties file in the same code repository as the application
D) As environment variables in a user-provided service

5. A developer is going into production with a consumer web application in IBM Bluemix PaaS. The developer is keen to understand how the application is performing to maximize customer retention.
The scaling history for the application shows repetitive scale out and scale in actions. To reduce resources used by each instance startup, the developer wants the scaling service to wait longer before taking action.
What parameter should be changed and how?

A) decrease the cooldown period for scaling in
B) increase the cooldown period for scaling out
C) decrease the cooldown period for scaling out
D) increase the cooldown period for scaling in

Solutions: