C1000-138 practice question 3 of 15

Which set of APIs should be used to register users in the Developer Portal, create applications, and subscribe to APIs?

Choose your answer, then check it against the explanation and the full breakdown below.

Which set of APIs should be used to register users in the Developer Portal, create applications, and subscribe to APIs?

Answer options

Correct Answer:

B

Explanation

The Consumer APIs are designed specifically for application developers (API consumers) to programmatically interact with the Developer Portal. This API set exposes the core self-service functionalities that a developer would typically perform through the portal's user interface. These functions explicitly include registering new developer accounts, creating and managing client applications (which receive API keys), and creating subscriptions to associate those applications with specific API Products and Plans. The Developer Portal's front-end is a primary user of these backend Consumer APIs.

References

1. IBM API Connect v10.0.x Documentation

"Using the Consumer API": "The Consumer API allows application developers to complete tasks such as registering a new application

or subscribing to a Plan. The Consumer API provides programmatic access to the functions that are available in the Developer Portal." This source directly confirms that the Consumer API is used for application registration and subscription.

2. IBM API Connect v10.0.x Documentation

"Tutorial: Using the consumer API": This tutorial guides a user through the steps of using the Consumer API

which include: "Register a user in the Developer Portal

" "Create an application

" and "Create a subscription." This explicitly covers all three activities mentioned in the question.

3. IBM API Connect v10.0.x Documentation

"API Connect REST APIs": This section provides an overview of the different API sets. It distinguishes the Consumer API

which "provides programmatic access to the functions that are available in the Developer Portal

" from the Management API

which is used for "automating tasks that you can perform by using the API Manager user interface." This clarifies the distinct roles of each API set.

Question 3 of 15

Question breakdown

Tests: Use API Connect REST API sets (Consumer vs Management)
Difficulty: Easy

Key idea: The Consumer API exposes the Developer Portal's self-service consumer functions programmatically.

How to reach the answer

The clue is that the actions are consumer-side: register in the Portal, create apps, and subscribe.
These are exactly the functions an application developer performs in the Developer Portal.
The Consumer API is the API set that maps to those portal functions.
The Management API targets provider and admin tasks done in Cloud Manager and API Manager, so B is the answer.

Each option

AIncorrect. The Management API automates provider and admin tasks such as publishing and catalog configuration, not developer self-service in the portal.
BCorrect. The Consumer API provides programmatic access to portal functions, including signing up, creating apps and subscribing to plans.
CIncorrect. There is no separate 'Subscription APIs' set; subscriptions are part of the Consumer API.
DIncorrect. 'Portal Admin APIs' is not the API set used for consumer registration and subscription.

Common trap: The Management API can also create consumer orgs and apps, so 'Management' sounds broad enough to cover everything.

In practice: Organizations build custom portals or onboarding automation and call the Consumer API to sign developers up and subscribe their apps without using the Drupal portal UI.

Remember: Portal-style consumer actions go through the Consumer API; provider administration goes through the Management API.

Drafted with AI assistance and checked against the answer key.

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