Answer: Durability.

Option D (Durability) is correct because it does not contribute to monitoring the timeliness of data in the pipeline. Throughput (A), Latency (B), and Correctness (C) are essential SLIs for big data systems, as they measure processing speed, request processing time, and result accuracy, respectively. Reference: https://sre.google/sre-book/service-level-objectives/

Author: LeetQuiz Editorial Team