Free C2090-101: IBM Big Data Engineer Exam Questions and Answers
IBM Big Data Engineer is exam C2090-101, part of the IBM Professional Certification Program. IBM exams you book carry a C1000- code, with S2000- used for specialty credentials, and the three digits are a sequential counter across the whole portfolio rather than a product family — a higher number simply means newer. C2090- and C2010- are the legacy series and are all but extinct.
The first 10 questions on this page are free to read, answers included — no account and no card. A plan opens the rest of the bank, the full timed practice test and your weak-topic reporting.
Last updated: September 12, 2026
- Exam code
- C2090-101
- Provider
- IBM
- Questions in our bank
- 1000+
- Free to read
- First 10, with answers
- Official page
- Official Exam website
- Our test mode duration & pass mark
- 130 mins · 70%
Recommended: Switch to Test Mode to start a practice test that simulates the real exam experience.
Question #1
In a data pipeline, you encounter a bottleneck in data processing speed. What should you first evaluate?
Please select an optionIncorrectCorrect answer: A
Bottlenecks often stem from inefficient aggregation logic in data pipelines.
Was this answer correct?Question #2
A company needs to analyze customer feedback data for sentiment analysis. Which tool would be most effective?
Please select an optionIncorrectCorrect answer: C
IBM Watson provides advanced analytics and AI capabilities ideal for sentiment analysis.
Was this answer correct?Question #3
A data engineer is optimizing a data lake. Which strategy may improve query performance?
Please select an optionIncorrectCorrect answer: D
Partitioning data can significantly enhance query performance by reducing the amount of data scanned.
Was this answer correct?Question #4
During data ingestion, duplicates are found in a dataset. What is the best practice to handle this issue?
Please select an optionIncorrectCorrect answer: C
Removing duplicates ensures data integrity and prevents skewed analysis results.
Was this answer correct?Question #5
An organization wants to implement a machine learning model on their dataset. What is a key step before training?
Please select an optionIncorrectCorrect answer: D
Data preparation is critical to ensure the machine learning model can learn and perform correctly.
Was this answer correct?Question #6
While building an ETL pipeline, you notice slow extraction times. What could be a potential cause?
Please select an optionIncorrectCorrect answer: B
Network latency can significantly affect extraction times, especially when pulling data from remote sources.
Was this answer correct?Question #7
You are tasked to integrate multiple data sources into a centralized repository. Which technique is beneficial?
Please select an optionIncorrectCorrect answer: B
Data federation allows for the integration of different data sources without full duplication.
Was this answer correct?Question #8
A company decides to move their data storage from on-premise to the cloud. What is a primary concern?
Please select an optionIncorrectCorrect answer: A
Data security is a primary concern when migrating sensitive data to the cloud.
Was this answer correct?Question #9
To ensure data quality, which method would you implement during data transformation?
Please select an optionIncorrectCorrect answer: D
Data profiling helps identify issues and ensures quality during transformation.
Was this answer correct?Question #10
A data warehouse is processing data and the management reports that certain queries are running slowly. What action can be taken?
Please select an optionIncorrectCorrect answer: D
Creating indexes can speed up query processing by allowing faster data retrieval.
Was this answer correct?
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FAQ
Learn More: https://www.ibm.com/training/credentials
- Q1: What is the C2090-101: IBM Big Data Engineer exam?
- A: C2090-101: IBM Big Data Engineer is a IBM certification exam. Judging by the questions in our bank, it concentrates on dataset, pipeline, processing, sources and engineer.
- Q2: What topics does the C2090-101: IBM Big Data Engineer exam cover?
- A: Questions in our C2090-101: IBM Big Data Engineer bank cluster around dataset, pipeline, processing, sources, engineer, building and sales. Working through the full set is the quickest way to find which of these you are weakest on.
- Q3: How should I prepare for C2090-101: IBM Big Data Engineer?
- A: Work through the C2090-101: IBM Big Data Engineer practice questions here, checking your answer on each one, then sit the practice test to rehearse the exam under timed conditions before the real thing.
- Q4: Are these real C2090-101: IBM Big Data Engineer exam questions?
- A: They are drawn from officially released past questions and from community members who have sat C2090-101: IBM Big Data Engineer. Answers are verified and updated weekly.
- Q5: Where do I register for the C2090-101: IBM Big Data Engineer exam?
- A: Register through IBM directly at https://www.ibm.com/training/credentials. Exampractice is not affiliated with IBM and does not administer the exam.
- Q6: Is there a free C2090-101: IBM Big Data Engineer sample?
- A: Yes. Every C2090-101: IBM Big Data Engineer page shows a free sample of real questions. Upgrading opens the full bank and the practice test.
- Q7: What are IBM Certification Exams?
- A: IBM Certification Exams validate your expertise in using and managing IBM’s suite of products and solutions, including cloud computing, AI, data analytics, cybersecurity, and more. These certifications demonstrate your proficiency in deploying, configuring, and optimizing IBM technologies to drive business success.
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- A: IBM Certification enhances your professional credibility, showcasing your skills and knowledge in IBM technologies. This can lead to better job opportunities, higher salaries, and career advancement in IT, cloud computing, data analytics, and other tech-related fields.
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- A: Benefits include recognition as a certified IBM professional, improved job performance, access to exclusive resources, continuing education opportunities, and staying current with the latest IBM technologies and best practices.
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- A: IT professionals, system administrators, data analysts, cybersecurity experts, developers, and anyone involved in managing and implementing IBM solutions should consider these certifications to validate their expertise and advance their careers.
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- A: IBM offers various certification paths, including:
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- A: Preparation can include official IBM training courses, study guides, practice exams, online tutorials, and hands-on experience with IBM products and solutions.
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