Difficulty: Easy
Correct Answer: Process and record transactions only (e.g., capture sales into the order table).
Explanation:
Introduction / Context:
BI systems are designed for analysis—descriptive, diagnostic, and sometimes predictive or prescriptive. By contrast, OLTP systems are optimized to process and record transactions in real time with strict integrity and latency. This question checks if you can separate analytical workloads from transactional ones.
Given Data / Assumptions:
Concept / Approach:
Option A (analyzing past/current) is a core BI activity. Option B (processing and recording transactions) is OLTP. Therefore, the task not performed by BI is B. Do not be tricked by “only” in A—BI indeed analyzes past and current activity (and may forecast), so A is still something BI does.
Step-by-Step Solution:
Verification / Alternative check:
Reference architectures keep analytical stores (warehouses/lakes) separate from operational systems to prevent workload interference and maintain ACID guarantees for transactions.
Why Other Options Are Wrong:
Common Pitfalls:
Final Answer:
Process and record transactions only (e.g., capture sales into the order table).
Discussion & Comments