Free E20-007: Data Science and Big Data Analytics Exam Questions and Answers
Data Science and Big Data Analytics is exam E20-007, part of Dell Proven Professional from Dell Technologies. Dell codes run D-TECH-TRACK-NN, where the technology block names the product and the track names the job function — FN foundations, DS design, DY deploy, OE operate, ST support. The detail worth checking before booking is the -A-, which marks an unproctored web-based Achievement rather than a proctored Skill Certification with a near-identical name.
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 7, 2026
- Exam code
- E20-007
- Provider
- Dell
- 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
Which algorithm is best suited for predicting continuous outcomes?
Please select an optionIncorrectCorrect answer: D
Linear Regression is specifically designed to predict outcomes based on continuous variables.
Was this answer correct?Question #2
In a supervised learning model, what is the role of the training dataset?
Please select an optionIncorrectCorrect answer: C
The training dataset is used to train the model so it can learn relationships from the data.
Was this answer correct?Question #3
What is the primary purpose of data normalization?
Please select an optionIncorrectCorrect answer: D
Normalization is used to scale data so that features contribute equally by placing them in a similar range.
Was this answer correct?Question #4
Which technique is commonly used for handling missing data?
Please select an optionIncorrectCorrect answer: C
Data Imputation is the process used to fill in missing data points in a dataset.
Was this answer correct?Question #5
What is the outcome of overfitting a machine learning model?
Please select an optionIncorrectCorrect answer: D
Overfitting occurs when the model learns the training data too well, leading to poor generalization.
Was this answer correct?Question #6
In the context of natural language processing, what does "tokenization" refer to?
Please select an optionIncorrectCorrect answer: C
Tokenization involves breaking down text into individual words or phrases for analysis.
Was this answer correct?Question #7
Which data mining technique is used for clustering similar items together?
Please select an optionIncorrectCorrect answer: C
Clustering is specifically designed to group similar items based on their characteristics.
Was this answer correct?Question #8
What is the main function of the ROC curve in a binary classification problem?
Please select an optionIncorrectCorrect answer: B
The ROC curve is used to assess the performance of a binary classifier by visualizing the true positive rate against the false positive rate.
Was this answer correct?Question #9
In big data, what does the term "volume" refer to?
Please select an optionIncorrectCorrect answer: A
Volume refers to the sheer size or amount of data being processed and analyzed in big data contexts.
Was this answer correct?Question #10
What is the purpose of cross-validation in machine learning?
Please select an optionIncorrectCorrect answer: C
Cross-validation is a technique used to assess how the results of a statistical analysis will generalize to an independent dataset.
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FAQ
Learn More: https://education.dell.com/content/dell/en-us/home/certification-overview.html
- Q1: What is the E20-007: Data Science and Big Data Analytics exam?
- A: E20-007: Data Science and Big Data Analytics is a Dell certification exam. Judging by the questions in our bank, it concentrates on learning, machine, dimensionality, mining and statistical.
- Q2: What topics does the E20-007: Data Science and Big Data Analytics exam cover?
- A: Questions in our E20-007: Data Science and Big Data Analytics bank cluster around learning, machine, dimensionality, mining, statistical, algorithm, dataset and visualization. Working through the full set is the quickest way to find which of these you are weakest on.
- Q3: How should I prepare for E20-007: Data Science and Big Data Analytics?
- A: Work through the E20-007: Data Science and Big Data Analytics 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 E20-007: Data Science and Big Data Analytics exam questions?
- A: They are drawn from officially released past questions and from community members who have sat E20-007: Data Science and Big Data Analytics. Answers are verified and updated weekly.
- Q5: Where do I register for the E20-007: Data Science and Big Data Analytics exam?
- A: Register through Dell directly at https://education.dell.com/content/dell/en-us/home/certification-overview.html. Exampractice is not affiliated with Dell and does not administer the exam.
- Q6: Is there a free E20-007: Data Science and Big Data Analytics sample?
- A: Yes. Every E20-007: Data Science and Big Data Analytics page shows a free sample of real questions. Upgrading opens the full bank and the practice test.
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