- A
Linear regression
Why wrong: Linear regression predicts continuous values, not categories.
- B
K-means clustering
Why wrong: K-means is unsupervised and not appropriate for labeled classification.
- C
Logistic regression
Logistic regression is used for classification, including multiclass via softmax.
- D
Gradient boosting
Why wrong: Gradient boosting can classify but is more complex and prone to overfitting on text data; logistic regression is more standard.
Question 289 of 1,000
AIF-C01 AI and ML Fundamentals Practice Question
This AIF-C01 practice question tests your understanding of ai and ml fundamentals. The scenario asks you to isolate a root cause — eliminate options that address a different problem before choosing. 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 company has a large dataset of customer support emails labeled with issue categories. They need to classify new emails automatically. Which algorithm is BEST suited for this task?
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
✓
Logistic regression
Logistic regression is the best choice because it is a supervised learning algorithm specifically designed for binary or multi-class classification tasks. Given labeled emails with issue categories, logistic regression models the probability that a new email belongs to each category using a logistic (sigmoid) function, making it ideal for this classification problem.
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.
- ✗
Linear regression
Why it's wrong here
Linear regression predicts continuous values, not categories.
- ✗
K-means clustering
Why it's wrong here
K-means is unsupervised and not appropriate for labeled classification.
- ✓
Logistic regression
Why this is correct
Logistic regression is used for classification, including multiclass via softmax.
Related concept
Read the scenario before looking for a memorised answer.
- ✗
Gradient boosting
Why it's wrong here
Gradient boosting can classify but is more complex and prone to overfitting on text data; logistic regression is more standard.
Common exam traps
Common exam trap: answer the scenario, not the keyword
AWS certification exams often test the distinction between regression and classification by placing linear regression as a distractor, exploiting the common misconception that 'regression' implies any predictive modeling, when in fact it is only for continuous outputs.
Detailed technical explanation
How to think about this question
Logistic regression uses the sigmoid function to map a linear combination of input features (e.g., TF-IDF vectors of email text) to a probability between 0 and 1, with a decision threshold (typically 0.5) to assign class labels. For multi-class problems, it extends to softmax regression (multinomial logistic regression), which outputs a probability distribution across all categories. In practice, logistic regression is highly effective for high-dimensional sparse data like text, and its L2 regularization (Ridge) helps prevent overfitting when feature counts exceed sample sizes.
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.
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.
- →
AI and ML Fundamentals — study guide chapter
Learn the concepts, then practise the questions
- →
AI and ML Fundamentals practice questions
Targeted practice on this topic area only
- →
All AIF-C01 questions
1,000 questions across all exam domains
- →
AWS Certified AI Practitioner AIF-C01 study guide
Full concept coverage aligned to exam objectives
- →
AIF-C01 practice test guide
How to use practice tests most effectively before exam day
Related practice questions
Related AIF-C01 practice-question pages
Use these pages to review the topic behind this question. This is how one missed question becomes focused revision.
Applications of Foundation Models practice questions
Practise AIF-C01 questions linked to Applications of Foundation Models.
AI and ML Fundamentals practice questions
Practise AIF-C01 questions linked to AI and ML Fundamentals.
Security, Compliance, and Governance for AI Solutions practice questions
Practise AIF-C01 questions linked to Security, Compliance, and Governance for AI Solutions.
Fundamentals of AI and ML practice questions
Practise AIF-C01 questions linked to Fundamentals of AI and ML.
Fundamentals of Generative AI practice questions
Practise AIF-C01 questions linked to Fundamentals of Generative AI.
Generative AI and Foundation Models practice questions
Practise AIF-C01 questions linked to Generative AI and Foundation Models.
Guidelines for Responsible AI practice questions
Practise AIF-C01 questions linked to Guidelines for Responsible AI.
Security, Compliance and Governance for AI Solutions practice questions
Practise AIF-C01 questions linked to Security, Compliance and Governance for AI Solutions.
AIF-C01 fundamentals practice questions
Practise AIF-C01 questions linked to AIF-C01 fundamentals.
AIF-C01 scenario practice questions
Practise AIF-C01 questions linked to AIF-C01 scenario.
AIF-C01 troubleshooting practice questions
Practise AIF-C01 questions linked to AIF-C01 troubleshooting.
Practice this exam
Start a free AIF-C01 practice session
Short sessions build daily habit. Longer sessions build exam-day stamina. Try a timed session to simulate real conditions.
FAQ
Questions learners often ask
What does this AIF-C01 question test?
AI and ML Fundamentals — This question tests AI and ML Fundamentals — Read the scenario before looking for a memorised answer..
What is the correct answer to this question?
The correct answer is: Logistic regression — Logistic regression is the best choice because it is a supervised learning algorithm specifically designed for binary or multi-class classification tasks. Given labeled emails with issue categories, logistic regression models the probability that a new email belongs to each category using a logistic (sigmoid) function, making it ideal for this classification problem.
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.
About these practice questions
Courseiva creates original exam-style practice questions with explanations and wrong-answer analysis. It does not publish real exam questions, exam dumps, or protected exam content. Learn why practice questions differ from exam dumps →
Keep practising
More AIF-C01 practice questions
- A data scientist is fine-tuning a foundation model on Amazon Bedrock for a custom summarization task. Which THREE practi…
- A company uses a foundation model for real-time translation in a chat application. The latency is high. Which optimizati…
- A developer is using the Amazon Bedrock API to generate text. They notice that the model sometimes returns harmful conte…
- Refer to the exhibit. A user invokes Claude v2 using the AWS CLI. The response is truncated. What is the most likely cau…
- A company wants to automatically detect anomalies in server metrics. Which algorithm is most appropriate?
- A company uses Amazon SageMaker to train a model. The training job fails with 'InsufficientInstanceCapacity' error. What…
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.
Question Discussion
Share a tip, memory trick, or ask about the reasoning behind this question. Do not post real exam questions, leaked content, braindumps, or copyrighted exam material. Comments are moderated and may be removed without notice.
Sign in to join the discussion.