The answer is that the resource ARN is incorrect because it should not include the account ID. When troubleshooting Bedrock invocation due to incorrect IAM ARN format, the most common mistake is adding the AWS account ID to the model ARN, which is not part of the standard structure. Amazon Bedrock foundation model ARNs follow a specific pattern: arn:aws:bedrock:region::foundation-model/anthropic.claude-v2, where the account ID field is intentionally left blank. On the AWS Certified AI Practitioner AIF-C01 exam, this tests your understanding of IAM policy resource syntax for Bedrock, often appearing as a trap where candidates mistakenly include account numbers from other ARN examples. A key memory tip is to remember that foundation models are shared AWS-managed resources, not account-specific, so the ARN has two colons in a row after the region—think "no number, just double colon."
AIF-C01 Fundamentals of Generative AI Practice Question
This AIF-C01 practice question tests your understanding of fundamentals of generative ai. Read the scenario carefully and evaluate each option against the stated constraints before committing to an answer. 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 data scientist is unable to invoke the Claude v2 model from an EC2 instance with IP 10.0.1.5. What is the most likely reason?
Clue words in this question
Noticing these words before you look at the options changes how you read each choice.
Clue: "most likely"
Why it matters: Probability qualifier — the question wants the most probable cause or outcome, not a guaranteed one. Eliminate low-probability options.
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
The resource ARN is incorrect because it should not include the account ID
Option B is correct because the resource ARN is malformed. Amazon Bedrock model ARNs do not include the account ID; the correct format is arn:aws:bedrock:region::foundation-model/anthropic.claude-v2. Option A is not an action. Option C is incorrect because the IP is within the allowed range. Option D is incorrect because the model is available in us-east-1.
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.
✗
The condition is too restrictive
Why it's wrong here
The condition allows IPs in the 10.0.0.0/8 range, which includes 10.0.1.5.
✗
The policy does not allow the ec2:AssociateAddress action
Why it's wrong here
The policy is for Bedrock InvokeModel, not EC2; the error is about invoking the model, not networking.
✓
The resource ARN is incorrect because it should not include the account ID
Why this is correct
Bedrock model ARNs omit the account ID; having it results in an invalid resource.
Clue confirmation
The clue word "most likely" in the question point toward this answer.
Related concept
Read the scenario before looking for a memorised answer.
✗
The model is not available in us-east-1
Why it's wrong here
Claude v2 is available in us-east-1.
Common exam traps
Common exam trap: answer the scenario, not the keyword
Many certification questions include familiar terms but test a specific constraint. Read the exact wording before choosing an answer that is generally true but wrong for this case.
Detailed technical explanation
How to think about this question
This question should be treated as a scenario, not a definition check. Identify the problem, the constraint and the best action. Then compare each option against those facts.
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.
Use explanations to understand the rule behind the answer.
TExam Day Tips
→Underline the problem statement mentally.
→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 company's IT admin needs to give a contractor read-only access to production logs without sharing account credentials. Using role-based access control (RBAC) and temporary scoped permissions — not a permanent shared password — is the correct pattern. Questions like this test whether you can apply least-privilege access across cloud identity services.
What to study next
Got this wrong? Here's your next step.
Identify which AIF-C01 exam domain this question belongs to, then review the specific concept being tested. Practise related questions in that domain and focus on understanding why each wrong answer is tempting — not just why the correct answer is right.
Fundamentals of Generative AI — This question tests Fundamentals of Generative AI — Read the scenario before looking for a memorised answer..
What is the correct answer to this question?
The correct answer is: The resource ARN is incorrect because it should not include the account ID — Option B is correct because the resource ARN is malformed. Amazon Bedrock model ARNs do not include the account ID; the correct format is arn:aws:bedrock:region::foundation-model/anthropic.claude-v2. Option A is not an action. Option C is incorrect because the IP is within the allowed range. Option D is incorrect because the model is available in us-east-1.
What should I do if I get this AIF-C01 question wrong?
Identify which AIF-C01 exam domain this question belongs to, then review the specific concept being tested. Practise related questions in that domain and focus on understanding why each wrong answer is tempting — not just why the correct answer is right.
Are there clue words in this question I should notice?
Yes — watch for: "most likely". Probability qualifier — the question wants the most probable cause or outcome, not a guaranteed one. Eliminate low-probability options.
What is the key concept behind this question?
Read the scenario before looking for a memorised answer.
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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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