100+ Free Dell Data Science Associate Practice Questions
Pass your Dell Technologies Data Science Associate (D-DS-FN-23) Certification exam on the first try — instant access, no signup required.
Which component of the Hadoop ecosystem is responsible for distributed storage of large data files across a cluster?
Key Facts: Dell Data Science Associate Exam
60
Exam Questions
Multiple-choice format
63%
Passing Score
~38 correct answers
90 min
Time Limit
Pearson VUE delivery
US$230
Exam Fee
Per attempt
3 yrs
Validity
Dell Proven Professional
Pearson VUE
Test Delivery
In-person or online proctored
Dell Data Science Associate (D-DS-FN-23) is an associate-level Dell Proven Professional credential with a 60-question, 90-minute exam and a 63% passing score. The exam covers the data science lifecycle (CRISP-DM), big data tools (Hadoop, Spark), data preparation, supervised and unsupervised ML, model evaluation, NLP, deep learning intro, MLOps, and Dell AI infrastructure. Testing is delivered through Pearson VUE at US$230 per attempt; the credential is valid for 3 years.
Sample Dell Data Science Associate Practice Questions
Try these sample questions to test your Dell Data Science Associate exam readiness. Each question includes a detailed explanation. Start the interactive quiz above for the full 100+ question experience with AI tutoring.
1Which component of the Hadoop ecosystem is responsible for distributed storage of large data files across a cluster?
2What is the default replication factor for blocks in HDFS?
3In the CRISP-DM methodology, which phase comes immediately after Data Understanding?
4Which Python library is most commonly used for data manipulation with DataFrames?
5Which of the following is an example of unstructured data?
6Which measure of central tendency is most resistant to outliers?
7Which visualization is most appropriate for showing the distribution of a single continuous numeric variable?
8What does Apache Spark use as its core in-memory data abstraction in the original API?
9Which Spark component provides SQL-like queries on structured data?
10What is the primary purpose of one-hot encoding?
About the Dell Data Science Associate Exam
The Dell Technologies Data Science Associate (D-DS-FN-23) certification validates associate-level knowledge of the data science lifecycle, big data ecosystems (Hadoop and Spark), data preparation, supervised and unsupervised machine learning, model evaluation, text analytics, deep learning fundamentals, MLOps, and Dell AI infrastructure (PowerEdge GPU servers and PowerScale).
Assessment
60 multiple-choice questions covering big data, data science lifecycle, data preparation, supervised and unsupervised ML, evaluation, NLP, deep learning intro, MLOps, and Dell AI infrastructure
Time Limit
90 minutes
Passing Score
63%
Exam Fee
US$230 (Dell Technologies / Pearson VUE)
Dell Data Science Associate Exam Content Outline
Big Data Ecosystem
Hadoop HDFS, MapReduce, YARN, Hive, Pig, Sqoop, Flume, Kafka, HBase, and Spark architecture (driver, executor, cluster manager), RDDs, DataFrames, SQL, MLlib, and Streaming
Data Science Lifecycle and Discovery
CRISP-DM phases, data sources (structured, semi-structured, unstructured), sampling, EDA, summary statistics, and visualization
Data Preparation
Cleaning, missing-value imputation, outlier detection (IQR, Z-score), normalization, standardization, log/Box-Cox transformations, encoding, and feature engineering
Supervised Learning
Linear, logistic, regularized regression (Lasso, Ridge, Elastic Net), KNN, Naive Bayes, Decision Trees, Random Forest, SVM, gradient boosting (GBM, XGBoost, LightGBM), and classification/regression metrics
Unsupervised Learning
K-means, hierarchical and DBSCAN clustering, PCA, t-SNE, UMAP, and association rules (Apriori, FP-Growth)
Model Evaluation and Selection
Train/validation/test splits, k-fold and stratified cross-validation, time-series split, hyperparameter tuning, learning curves, and bias-variance tradeoff
Text Analytics, NLP, and Deep Learning
Tokenization, stopword removal, stemming/lemmatization, TF-IDF, Word2Vec/GloVe, sentiment analysis, NER, LDA topic modeling, and basic CNN/RNN/LSTM concepts
MLOps and Dell AI Infrastructure
CI/CD for ML, model versioning, REST/batch/streaming serving, drift detection, retraining, MLflow, Apache Airflow, and Dell PowerEdge GPU servers and PowerScale
How to Pass the Dell Data Science Associate Exam
What You Need to Know
- Passing score: 63%
- Assessment: 60 multiple-choice questions covering big data, data science lifecycle, data preparation, supervised and unsupervised ML, evaluation, NLP, deep learning intro, MLOps, and Dell AI infrastructure
- Time limit: 90 minutes
- Exam fee: US$230
Keys to Passing
- Complete 500+ practice questions
- Score 80%+ consistently before scheduling
- Focus on highest-weighted sections
- Use our AI tutor for tough concepts
Dell Data Science Associate Study Tips from Top Performers
Frequently Asked Questions
What is the Dell Data Science Associate (D-DS-FN-23) exam?
The Dell Data Science Associate (D-DS-FN-23) is an associate-level Dell Proven Professional certification that validates foundational knowledge of the data science lifecycle, big data tools (Hadoop, Spark), machine learning, and Dell AI infrastructure. It is designed for analysts, engineers, and partner professionals working on data science projects.
How many questions are on the Dell DCA-DS exam?
The exam contains 60 multiple-choice questions with a 90-minute time limit. You need to score at least 63% (about 38 correct answers) to pass. Questions cover big data, the data science lifecycle, preparation, supervised and unsupervised ML, evaluation, NLP, deep learning intro, MLOps, and Dell AI infrastructure.
What topics does the Dell Data Science Associate exam cover?
The exam covers eight main areas: big data ecosystem (Hadoop, Spark), data science lifecycle and discovery (CRISP-DM, EDA), data preparation, supervised learning, unsupervised learning, model evaluation and selection, text analytics/NLP/deep learning intro, and MLOps with Dell AI infrastructure.
How much does the Dell Data Science Associate exam cost?
The Dell Data Science Associate (D-DS-FN-23) exam costs US$230 per attempt and is administered through Pearson VUE testing centers or online proctoring. Dell partner organizations may provide vouchers or discounts for their employees. Retake policies and fees are set by Dell Technologies.
Do I need experience to take the Dell DCA-DS exam?
There are no formal prerequisites, but Dell recommends familiarity with statistics, Python, SQL, and Hadoop/Spark concepts. Many successful candidates have 6-12 months of hands-on experience with data analysis and have completed Dell's Data Science and Big Data Analytics training course.
How long is the Dell Data Science Associate certification valid?
The Dell Data Science Associate certification is valid for 3 years from the pass date. To maintain it, you must recertify or earn a higher-level Dell credential before expiration, following the Dell Proven Professional program recertification policy.
Is the Dell Data Science Associate exam available online?
Yes, the Dell DCA-DS exam is available through Pearson VUE both at physical testing centers and via online proctored delivery. Online testing allows you to take the exam from home or office with a webcam, microphone, and a stable internet connection.
How should I prepare for the Dell Data Science Associate exam?
Prepare by studying Dell's Data Science and Big Data Analytics training materials, reviewing CRISP-DM and core ML algorithms, practicing with Python (Pandas, Scikit-learn) and Spark, learning Dell AI infrastructure (PowerEdge GPU servers, PowerScale), and using free practice questions to identify weak areas before exam day.