DP-900 Stream processing Practice Question
A car manufacturing company has two data processing systems: one system processes real-time sensor data from assembly lines to immediately detect equipment failures, and another system processes historical production records to generate monthly efficiency reports. Which two types of data processing workloads best describe these systems?
⚠ Common exam trap
Candidates may incorrectly assume that any real-time workload is transactional processing. In DP-900, transactional processing specifically means OLTP systems that handle business transactions, such as orders or financial records. Real-time sensor data should be classified as stream processing.
Answer choices
Why each option matters
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
Stream processing and batch processing
Stream processing (option A) handles real-time sensor data from the assembly line to detect equipment failures immediately, while batch processing (option A) is ideal for processing historical production records on a scheduled basis to generate monthly efficiency reports. Transactional processing (option D) refers to OLTP workloads that process business transactions, not real-time sensor streams, so it is not a correct description for the first system. The correct answer is A only.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✓
Stream processing and batch processing
Why this is correct
Correct: Stream processing handles real-time sensor data with low latency, and batch processing handles historical data at scheduled intervals.
- ✗
OLTP and OLAP
Why it's wrong here
Incorrect. OLTP and OLAP are database-focused terms; while they can relate, they are not the best descriptors for these processing workloads.
- ✗
Online processing and offline processing
Why it's wrong here
Incorrect. 'Online processing' and 'offline processing' are often used in networking contexts and do not accurately describe the data processing patterns in this scenario.
- ✗
Transactional processing and analytical processing
Why it's wrong here
Incorrect: Transactional processing describes OLTP business transactions, not real-time sensor streams. Analytical processing only covers the historical reporting half, so this pair does not correctly describe the first system.
Go deeper
Related to this question
Learn chapter
Data Roles and Core Concepts
Key term
Data
Data is raw, unprocessed information, like numbers, words, or measurements, that can be stored, processed, and analyzed by computers.
Key term
Batch processing
Batch processing is a method of running high-volume, repetitive data jobs where a group of transactions is collected, processed together automatically, and then results are produced without real-time user interaction.
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