- A
Define an action group with an API schema and Lambda function
Action groups in Bedrock Agents specify the tools (APIs) the agent can use, with Lambda as the backend.
- B
Configure a knowledge base with the API documentation
Why wrong: Knowledge bases are for document retrieval, not API invocation.
- C
Use a guardrail to allow API calls
Why wrong: Guardrails are for content filtering, not API access.
- D
Enable model caching for the API endpoint
Why wrong: Model caching speeds up inference but does not enable API calls.
Question 167 of 1,000
mediumMultiple ChoiceObjective-mapped
AIF-C01 Practice Question: A developer is building a customer support…
This AIF-C01 practice question tests your understanding of aif-c01 exam topics. This is a configuration task: choose the command set that satisfies every stated requirement. Small differences — like 'secret' vs 'password' or 'transport input ssh' vs 'all' — change whether the answer is correct. After answering, compare your reasoning against the explanation and wrong-answer breakdown below. Once you have made your selection, read the full explanation to reinforce the concept and understand why each distractor is designed to mislead on exam day.
A developer is building a customer support chatbot using Amazon Bedrock Agents. The agent needs to retrieve order status by calling an external API. Which configuration enables the agent to call the API?
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
✓
Define an action group with an API schema and Lambda function
Option A is correct because Amazon Bedrock Agents use action groups to define custom actions that the agent can invoke, such as calling an external API. An action group requires an API schema (in OpenAPI 3.0 format) to describe the API operations and a Lambda function to execute the API call and return the result. This configuration enables the agent to dynamically retrieve order status by invoking the Lambda function based on the user's request.
Key principle: Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✓
Define an action group with an API schema and Lambda function
Why this is correct
Action groups in Bedrock Agents specify the tools (APIs) the agent can use, with Lambda as the backend.
Related concept
Read the scenario before looking for a memorised answer.
- ✗
Configure a knowledge base with the API documentation
Why it's wrong here
Knowledge bases are for document retrieval, not API invocation.
- ✗
Use a guardrail to allow API calls
Why it's wrong here
Guardrails are for content filtering, not API access.
- ✗
Enable model caching for the API endpoint
Why it's wrong here
Model caching speeds up inference but does not enable API calls.
Common exam traps
Common exam trap: answer the scenario, not the keyword
AWS often tests the distinction between static data retrieval (knowledge bases) and dynamic action execution (action groups), so candidates mistakenly think a knowledge base can be used to call APIs when it only stores and retrieves pre-indexed content.
Detailed technical explanation
How to think about this question
Under the hood, when an action group is triggered, Bedrock Agents parse the user input, match it to an operation defined in the OpenAPI schema, and then invoke the associated Lambda function with parameters extracted from the conversation. The Lambda function must return a response in a specific JSON format that the agent can interpret, including fields like 'messageVersion', 'response', and 'sessionAttributes'. A real-world scenario is a chatbot that needs to query a CRM system for order status; the action group handles authentication, parameter extraction, and error handling within the Lambda function.
KKey Concepts to Remember
- Read the scenario before looking for a memorised answer.
- Find the constraint that changes the correct option.
- Eliminate answers that are true in general but not in this case.
TExam Day Tips
- Watch for words such as best, first, most likely and least administrative effort.
- Review why wrong options are wrong, not only why the correct option is correct.
Key takeaway
Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Real-world example
How this comes up in practice
A cloud solutions architect for a retail company is evaluating services for a new workload. The correct answer here reflects best practice for the specific scenario described — not a general cloud recommendation. Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option. Cloud exam questions reward reading the constraint carefully: the same technology can be right or wrong depending on the use case.
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 |
What to study next
Got this wrong? Here's your next step.
Identify which exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.
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FAQ
Questions learners often ask
What does this AIF-C01 question test?
Read the scenario before looking for a memorised answer.
What is the correct answer to this question?
The correct answer is: Define an action group with an API schema and Lambda function — Option A is correct because Amazon Bedrock Agents use action groups to define custom actions that the agent can invoke, such as calling an external API. An action group requires an API schema (in OpenAPI 3.0 format) to describe the API operations and a Lambda function to execute the API call and return the result. This configuration enables the agent to dynamically retrieve order status by invoking the Lambda function based on the user's request.
What should I do if I get this AIF-C01 question wrong?
Identify which exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.
What is the key concept behind this question?
Read the scenario before looking for a memorised answer.
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Last reviewed: Jul 4, 2026
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.
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