Amazon Web Services Updated AIF-C01 Exam Questions and Answers by ela

Amazon SageMaker Serverless Inference is the correct solution for deploying an ML model to production in a way that allows a web application to use the model without the need to manage the underlying infrastructure.

Amazon SageMaker Serverless Inferenceprovides a fully managed environment for deploying machine learning models. It automatically provisions, scales, and manages the infrastructure required to host the model, removing the need for the company to manage servers or other underlying infrastructure.

Why Option A is Correct:

No Infrastructure Management:SageMaker Serverless Inference handles the infrastructure management for deploying and serving ML models. The company can simply provide the model and specify the required compute capacity, and SageMaker will handle the rest.

Cost-Effectiveness:The serverless inference option is ideal for applications with intermittent or unpredictable traffic, as the company only pays for the compute time consumed while handling requests.

Integration with Web Applications:This solution allows the model to be easily accessed by web applications via RESTful APIs, making it an ideal choice for hosting the model and serving predictions.

Why Other Options are Incorrect:

B. Use Amazon CloudFront to deploy the model:CloudFront is a content delivery network (CDN) service for distributing content, not for deploying ML models or serving predictions.

C. Use Amazon API Gateway to host the model and serve predictions:API Gateway is used for creating, deploying, and managing APIs, but it does not provide the infrastructure or the required environment to host and run ML models.

D. Use AWS Batch to host the model and serve predictions:AWS Batch is designed for running batch computing workloads and is not optimized for real-time inference or hosting machine learning models.

Thus,Ais the correct answer, as it aligns with the requirement of deploying an ML model without managing any underlying infrastructure.

Partial dependence plots (PDPs) are visual tools used to show the relationship between a feature (or a set of features) in the data and the predicted outcome of a machine learning model. They are highly effective for providing transparency and explainability of the model's behavior to stakeholders by illustrating how different input variables impact the model's predictions.

Option B (Correct): "Partial dependence plots (PDPs)":This is the correct answer because PDPs help to interpret how the model's predictions change with varying values of input features, providing stakeholders with a clearer understanding of the model's decision-making process.

Option A:"Code for model training" is incorrect because providing the raw code for model training may not offer transparency or explainability to non-technical stakeholders.

Option C:"Sample data for training" is incorrect as sample data alone does not explain how the model works or its decision-making process.

Option D:"Model convergence tables" is incorrect. While convergence tables can show the training process, they do not provide insights into how input features affect the model's predictions.

AWS AI Practitioner References:

Explainability in AWS Machine Learning:AWS provides various tools for model explainability, such as Amazon SageMaker Clarify, which includes PDPs to help explain the impact of different features on the model’s predictions.

Sampling bias is the correct type of bias affecting the model output when it disproportionately flags people from a specific ethnic group.

Sampling Bias:

Occurs when the training data is not representative of the broader population, leading to skewed model outputs.

In this case, if the model disproportionately flags people from a specific ethnic group, it likely indicates that the training data was not adequately balanced or representative.

Why Option B is Correct:

Reflects Data Imbalance:A biased sample in the training data could result in unfair outcomes, such as disproportionately flagging a particular group.

Common Issue in ML Models:Sampling bias is a known problem that can lead to unfair or inaccurate model predictions.

Why Other Options are Incorrect:

A. Measurement bias:Involves errors in data collection or measurement, not sampling.

C. Observer bias:Refers to bias introduced by researchers or data collectors, not the model's output.

D. Confirmation bias:Involves favoring information that confirms existing beliefs, not relevant to model output bias.

Transfer learning is the correct strategy for adapting pre-trained models for new, related tasks without creating models from scratch.

Transfer Learning:

Involves taking a pre-trained model and fine-tuning it on a new dataset for a related task.

This approach is efficient because it leverages existing knowledge from a model trained on a large dataset, requiring less data and computational resources than training a new model from scratch.

Why Option B is Correct:

Adaptation of Pre-trained Models:Allows for adapting existing models to new tasks, which aligns with the company's goal of not starting from scratch.

Efficiency and Speed:Speeds up the model development process by building on the knowledge of pre-trained models.

Why Other Options are Incorrect:

A. Increase the number of epochs:Does not address the strategy of reusing pre-trained models.

C. Decrease the number of epochs:Similarly, does not apply to adapting pre-trained models.

D. Use unsupervised learning:Does not involve using pre-trained models for new tasks.