easymultiple choiceObjective-mapped

A retail company operates an online store. The store processes each customer's order immediately upon submission, updating inventory and payment records in real-time. Additionally, the company's business analysts run weekly reports that aggregate sales data over the past month to identify trends. Which of the following correctly describes the two workload types represented in this scenario?

Question 1easymultiple choice
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A retail company operates an online store. The store processes each customer's order immediately upon submission, updating inventory and payment records in real-time. Additionally, the company's business analysts run weekly reports that aggregate sales data over the past month to identify trends. Which of the following correctly describes the two workload types represented in this scenario?

Answer choices

Why each option matters

Good practice is not just finding the correct option. The wrong answers often show the exact trap the exam wants you to fall into.

A

Best answer

The order processing is an OLTP workload; the weekly reporting is an OLAP workload.

Correct. Order processing involves many small, real-time transactions (OLTP). Weekly reporting aggregates large volumes of historical data (OLAP).

B

Distractor review

The order processing is an OLAP workload; the weekly reporting is an OLTP workload.

Incorrect. This swaps the definitions. Order processing is transactional (OLTP), not analytical (OLAP). Weekly reporting is analytical (OLAP), not transactional.

C

Distractor review

Both workloads are OLTP workloads.

Incorrect. While order processing is OLTP, the weekly reporting involves aggregating data for analysis, which is an OLAP workload.

D

Distractor review

Both workloads are batch processing workloads.

Incorrect. Order processing is real-time or near-real-time, not batch. Only the weekly reporting is a batch-oriented workload.

Common exam trap

Common exam trap: answer the scenario, not the keyword

Many certification questions include familiar terms but test a specific constraint. Read the exact wording before choosing an answer that is generally true but wrong for this case.

Technical deep dive

How to think about this question

This question should be treated as a scenario, not a definition check. Identify the problem, the constraint and the best action. Then compare each option against those facts.

KKey Concepts to Remember

  • Read the scenario before looking for a memorised answer.
  • Find the constraint that changes the correct option.
  • Eliminate answers that are true in general but not in this case.
  • Use explanations to understand the rule behind the answer.

TExam Day Tips

  • Underline the problem statement mentally.
  • Watch for words such as best, first, most likely and least administrative effort.
  • Review why wrong options are wrong, not only why the correct option is correct.

Related practice questions

Related DP-900 practice-question pages

Use these pages to review the topic behind this question. This is how one missed question becomes focused revision.

More questions from this exam

Keep practising from the same exam bank, or move into a focused topic page if this question exposed a weak area.

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Question 2

A data engineer needs to query data stored in CSV files in Azure Data Lake Storage Gen2 using T-SQL in Azure Synapse Analytics, without loading the data into the database. Which feature should they use?

Question 3

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Question 4

A data engineer is designing a data lake architecture in Azure. They plan to first ingest raw data from various sources into a landing zone in Azure Data Lake Storage Gen2. Then they will clean, validate, and deduplicate that data in a second zone. Finally, they will create aggregated, business-ready datasets in a third zone for analysts. This layered approach is known as which architecture?

Question 5

A data engineer needs to transform large datasets stored in Azure Data Lake Storage Gen2 using Python and Apache Spark. They want a serverless compute option that automatically scales and requires no cluster management. Which Azure service should they use?

Question 6

A company collects customer feedback forms. Each form contains always-present fields like CustomerID and SubmissionDate, but also a free-text Comments field and optional fields like Rating or ProductCategory that vary between forms. How should this data be classified?

FAQ

Questions learners often ask

What does this DP-900 question test?

Read the scenario before looking for a memorised answer.

What is the correct answer to this question?

The correct answer is: The order processing is an OLTP workload; the weekly reporting is an OLAP workload. — OLTP (Online Transaction Processing) handles real-time transactional operations like order processing, requiring ACID properties. OLAP (Online Analytical Processing) is used for complex queries and data aggregation for reporting and analysis. The weekly reporting is a batch-oriented analytical task.

What should I do if I get this DP-900 question wrong?

Then try more questions from the same exam bank and focus on understanding why the wrong options are tempting.

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