easyMultiple Choice
AIF-C01 Practice Question: A developer wants to create an agent using Amazon…
A developer wants to create an agent using Amazon Bedrock Agents that can call an external API to check inventory levels. What must be defined in the agent configuration to enable this API call?
Answer choices
Why each option matters
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
An action group
Action groups define the set of actions (API calls) that an agent can perform. Each action group specifies the API schema and optionally a Lambda function for execution.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
A knowledge base
Why it's wrong here
A knowledge base supplies retrieved document context to the agent via embeddings; it cannot invoke an external inventory API. It is tempting because knowledge bases extend agent capability, but they serve retrieval-augmented generation, whereas API calls require an action group with an OpenAPI schema.
- ✗
A guardrail
Why it's wrong here
Guardrails filter and block harmful or disallowed content in prompts and responses; they do not define callable external operations. They are tempting as a safety configuration, but they belong to content moderation, whereas invoking an inventory API requires an action group with an OpenAPI schema.
- ✓
An action group
Why this is correct
An action group defines the API operations an agent may invoke, mapping them to an OpenAPI schema and a Lambda function that executes the call. This satisfies the stem's requirement to reach an external inventory API, since Bedrock Agents route tool use through action groups rather than raw prompts.
- ✗
A prompt template
Why it's wrong here
A prompt template shapes the instruction text sent to the foundation model; it cannot register or invoke an external API. It is tempting because prompts steer agent behaviour, but they govern model input, whereas API invocation requires an action group defining the OpenAPI schema.
Quick reference
Cloud Service Model Comparison
| Model | You Manage | Provider Manages | Examples |
|---|---|---|---|
| IaaS | OS, runtime, apps, data | Hardware, hypervisor, networking | EC2, Azure VMs, GCP Compute Engine |
| PaaS | Apps and data | OS, runtime, middleware, hardware | Elastic Beanstalk, Azure App Service |
| SaaS | Data and settings only | Everything else | Microsoft 365, Salesforce, Workday |
| FaaS / Serverless | Function code only | Infra, scaling, runtime | Lambda, Azure Functions, Cloud Run |
| CaaS | Containers and apps | Kubernetes, OS, hardware | EKS, AKS, GKE |
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Written by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
This AIF-C01 practice question is part of Courseiva's free Amazon Web Services certification practice question bank. Courseiva provides original exam-style practice questions with explanations, topic-based practice, mock exams, readiness tracking, and study analytics to help learners prepare for the AIF-C01 exam.