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C9002604 IBM Certified Solution Implementer – API Connect v10.0.3 Practice Exam
Exam Number: 4389 | Last updated April 17, 2026 | 382+ questions across 5 vendor-aligned objectives
API-implementer engineers who configure IBM API Connect v10.0.3 for enterprise API management target the C9002604 credential. The exam validates your ability to design APIs in the Cloud Manager and API Manager, configure gateways, define products and plans, and operationalize the developer portal. Candidates should be fluent with OpenAPI, gateway policies, subscription models, catalog management, and the four-tier API Connect architecture that separates management, gateway, portal, and analytics concerns.
Bridging 26% of the exam, API Design covers OpenAPI editing, gateway policy configuration, and API security definitions. At 22%, Products and Plans covers product composition, plan definition, rate limits, and API visibility. A further 20% targets Gateway Configuration, covering the DataPower API Gateway, policy assembly, and error handling.
Caulking the remaining domains, Developer Portal accounts for 18% and spans portal configuration, organization management, and subscription workflows. Deployment and Operations represents 14% and spans topology choices, catalog management, and upgrade paths. Implementer questions reward practical judgment about where logic should live — in the API, in the gateway policy, or in the back-end service.
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Question #1 - API Design
An API Connect v10.0.3 implementer at Brackwell Bank must author an API with OpenAPI definitions, security, and responses.
Which v10.0.3 implementer approach fits?
A) Use the API Manager or Toolkit to edit the OpenAPI definition, add security definitions (OAuth, API key), define responses, and validate in the environment before publishing
B) Author OpenAPI in an unrelated text editor without validation
C) Skip OpenAPI and hand-write swagger-like docs in a README
D) Publish APIs without definitions
Show solution
Correct answers: A – Explanation:
API Manager/Toolkit OpenAPI editing with validation is the v10.0.3 API-design reference. Unrelated editors, README docs, and no-definitions all fail API design. Source: Check Source
Question #2 - API Design
A v10.0.3 implementer at Ogden Finance needs to secure an API with OAuth.
Which v10.0.3 security definition fits?
A) Hard-code a shared static token in the URL
B) Skip OAuth and expose the API unauthenticated
C) Accept any bearer token without validation
D) Add a securityDefinition to the OpenAPI with the OAuth flow and scopes required, and configure the API Connect OAuth provider so the gateway enforces token validation at the edge
Show solution
Correct answers: D – Explanation:
OAuth securityDefinition OAuth provider at gateway is the v10.0.3 API-security reference. Unauth, unvalidated-tokens, and URL tokens all fail security. Source: Check Source
Question #3 - API Design
A v10.0.3 implementer at Hollarch Retail must have the gateway handle errors from a back-end REST call.
Which v10.0.3 API design practice fits?
A) Let the back-end error response pass through unchanged
B) Add error-handling policy assemblies in the API’s gateway policy to catch specific back-end error responses, transform them into standard error payloads, and return appropriate HTTP status codes to callers
C) Return HTTP 200 regardless of the back-end outcome
D) Skip error handling and rely on callers to interpret back-end errors
Show solution
Correct answers: B – Explanation:
Gateway error-handling policies with standardized payloads is the v10.0.3 reference. Pass-through, always-200, and caller-interprets-backend all fail API error handling. Source: Check Source
Question #4 - Products and Plans
A v10.0.3 implementer at Pennyridge Finance must expose an API to partners with different rate limits per partner tier.
Which v10.0.3 products-and-plans approach fits?
A) Create a product containing the API, define plans for each tier (Free, Standard, Premium) with distinct rate-limit and quota settings, and subscribe partners to the appropriate plan via the developer portal
B) Expose the API without any plan and hope partners limit themselves
C) Create one plan with the most restrictive limits for every partner
D) Edit rate limits manually per request
Show solution
Correct answers: A – Explanation:
Product tiered plans subscription is the v10.0.3 products-and-plans reference. No-plan, single-plan, and manual editing all fail tiered API exposure. Source: Check Source
Question #5 - Products and Plans
A v10.0.3 implementer at Fernmead Insurance needs to change an API’s behavior for some partners without affecting others.
Which v10.0.3 approach fits?
A) Change the live API and break every partner at once
B) Create a new plan or product version with the new behavior, migrate specific partner subscriptions to the new version during their scheduled window, and retire the old version when everyone has moved
C) Maintain two totally separate APIs with no version model
D) Skip versioning and pray
Show solution
Correct answers: B – Explanation:
Plan/product versioning with subscription migration is the v10.0.3 reference. Live changes, separate APIs, and skipping versioning all fail change management. Source: Check Source
Question #6 - Gateway Configuration
A v10.0.3 implementer at Ridgewick Utility must configure the DataPower API Gateway to execute the API’s policy assembly.
Which v10.0.3 gateway configuration fits?
A) Deploy the API directly to DataPower outside API Connect’s control
B) Configure the DataPower API Gateway (v10-compatible) in API Connect, assign the API to the gateway service, and let API Connect synchronize the policy assembly to the gateway for execution
C) Skip gateway configuration and call back-ends directly from clients
D) Use an unrelated gateway product
Show solution
Correct answers: B – Explanation:
DataPower API Gateway registered policy assembly sync is the v10.0.3 gateway reference. Off-catalog deployments, direct client calls, and unrelated gateways all fail gateway configuration. Source: Check Source
Question #7 - Gateway Configuration
A v10.0.3 implementer at Blackmore Trust must assemble transformation, validation, and invocation steps in an API’s policy.
Which v10.0.3 policy-assembly approach fits?
A) Hand-write GatewayScript for every step without using the policy surface
B) Skip the policy assembly and just point the API at the back-end
C) Build the policy assembly in the API Manager policy editor, sequencing policies (Validate, Invoke, Map/Transform, Set Variable, Catch) so the request and response flows execute cleanly
D) Invent a custom policy syntax unrelated to API Connect
Show solution
Correct answers: C – Explanation:
Policy-assembly editor with sequenced policies is the v10.0.3 reference. No-assembly, all-GatewayScript, and custom syntax all fail policy design. Source: Check Source
Question #8 - Developer Portal
A v10.0.3 implementer at Gladworth Retail must let partner developers discover APIs, subscribe to plans, and manage credentials themselves.
Which v10.0.3 capability fits?
A) Use an unrelated product for API discovery
B) Skip the portal and email API docs to partners
C) Give every partner a shared admin account
D) Configure the Developer Portal for the catalog, publish products with OpenAPI definitions, and let partners sign up, subscribe to plans, and manage API keys via the portal
Show solution
Correct answers: D – Explanation:
Developer Portal with published products is the v10.0.3 portal reference. Email docs, shared admin, and unrelated products all fail portal practice. Source: Check Source
Question #9 - Developer Portal
A v10.0.3 implementer at Coldmeer Bank needs to segment portal content by partner organization.
Which v10.0.3 portal capability fits?
A) Use consumer organizations in the portal to scope subscriptions, members, and visibility, so each partner organization sees only the relevant products and managed content
B) Expose everything to every visitor
C) Skip organizations and have partners share logins
D) Rename the portal for each partner
Show solution
Correct answers: A – Explanation:
Consumer organizations in the portal is the v10.0.3 reference. Universal exposure, shared logins, and rename-hacks all fail portal segmentation. Source: Check Source
Question #10 - Deployment and Operations
A v10.0.3 implementer at Vexner Mutual must promote an API from a development catalog to production.
Which v10.0.3 deployment approach fits?
A) Skip staging and apply changes live on weekends
B) Publish directly to production from development
C) Stage the product in each catalog (development, test, production) using API Connect’s catalog-promotion workflow, adjusting environment-specific parameters and validating at each catalog before promoting to the next
D) Make each catalog a completely unrelated product
Show solution
Correct answers: C – Explanation:
Catalog-promotion workflow with validation is the v10.0.3 reference. Direct-to-prod, weekend-changes, and unrelated catalogs all fail promotion practice. Source: Check Source
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Exam mode & learn mode · Score by objective · Updated April 17, 2026
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What the C9002604 apiconnect v10 implementer exam measures
- Design and secure OpenAPI editing, gateway policy configuration, and API security to deliver clean, secure APIs that partner developers can consume confidently
- Package and rate-limit product composition, plan definition, rate limits, and API visibility to monetize and govern APIs across diverse consumer populations
- Configure and handle DataPower API Gateway, policy assembly, and error handling to enforce policy consistently while giving consumers meaningful error responses
- Onboard and manage developer portal configuration, organization management, and subscriptions to give API consumers self-service paths through discovery, subscription, and support
- Deploy and upgrade topology, catalog management, and upgrade paths to operate API Connect deployments reliably across their full lifecycle
How to prepare for this exam
- Review the official exam guide to understand every objective and domain weight before you begin studying
- Work through the relevant IBM Training learning path — ibm certified solution implementer api connect v10 0 3 C9002604 — to cover vendor-authored material end-to-end
- Get hands-on inside IBM TechZone or a comparable sandbox so you can practice the console tasks, CLI commands, and APIs the exam expects
- Tackle a real-world project at your workplace, a volunteer role, or an open-source repository where the technology under test is actually in use
- Drill one exam objective at a time, starting with the highest-weighted domain and only moving on once you can teach it to someone else
- Study by objective in PowerKram learn mode, where every explanation links back to authoritative IBM documentation
- Switch to PowerKram exam mode to rehearse under timed conditions and confirm you consistently score above the pass mark
Career paths and salary outlook
API implementers are in steady demand as enterprises scale API platforms across internal and partner ecosystems:
- API Implementer — $110,000–$150,000 per year, delivering API Connect platforms for enterprise clients (Glassdoor salary data)
- API Platform Engineer — $120,000–$160,000 per year, running API management platforms in production (Indeed salary data)
- Integration Consultant — $125,000–$170,000 per year, advising clients on API and integration strategy (Glassdoor salary data)
Official resources
Work through the official IBM Training learning path for this certification, which bundles videos, labs, and skill tasks aligned to every objective. The official exam page lists the full objective breakdown, prerequisite knowledge, and scheduling details.