AWS Certified Machine Learning Engineer - Associate MLA-C01 — Question 157

An ML engineer is building an ML pipeline. The pipeline must process a dataset in two ways by using Amazon Athena. The pipeline must use batch processing to perform large-scale data transformations and for model training. The pipeline must also use near real-time processing to perform low-latency queries for inference and analytics. Which file format will provide the LEAST latency for both types of processing?