AWS Machine Learning Associate Practice Exams
For those seeking AWS Machine Learning practice exams for associate certification, sample questions and practice tests are available to help pass the AWS ML Exam.
Optimizing DynamoDB Table Reads
To read the latest items from a DynamoDB table with approximately 120 million records from a SageMaker Studio notebook, the options include:
- Using AWS Glue to ETL into Parquet in Amazon S3 and reading from S3
- Utilizing Amazon DynamoDB Accelerator (DAX) from the notebook
- Employing Amazon Athena with the DynamoDB federated connector
- Calling DynamoDB directly from the notebook using Boto3
- Exporting the table to S3 with on-demand export and reading the files
- Replicating to Amazon RDS via a scheduled Lambda and querying RDS
Tuning Binary Classifiers
When tuning a binary classifier’s threshold to maximize correct positives and negatives on a validation set, the metric to optimize is the Area under the ROC curve (AUC-ROC).
Area under the ROC curve (AUC-ROC) is the key metric for optimizing binary classifiers.
Analyzing SageMaker Spend
Cost Explorer capabilities that help analyze SageMaker spend and forecast future costs include:
Author's summary: Practice exams for AWS Machine Learning associate certification.