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DASCA SDS Exam Syllabus Topics:
| Section | Objectives |
|---|---|
| Big Data Engineering and Technologies | - Data Pipelines and ETL - Distributed Computing Concepts |
| Artificial Intelligence Applications | - NLP and Computer Vision Overview - Deep Learning Fundamentals |
| Data Management and Governance | - Data Privacy and Security Principles - Data Quality and Lifecycle Management |
| Machine Learning and Predictive Modeling | - Model Evaluation and Validation - Supervised Learning - Unsupervised Learning |
| Mathematics and Statistics for Data Science | - Probability and Statistical Inference - Linear Algebra and Optimization |
DASCA Senior Data Scientist Sample Questions:
1. Spark is written in:
A) Python
B) Scala
C) C++
D) C
E) Java
2. Which of the following is NOT an example of the applications of neural networks?
A) Stock market prediction
B) None of the above
C) Traveling salesman's problem
D) Image compression
E) Character recognition
3. Which of the following statements is correct?
A) Apache claimed that Spark is able to run parallel jobs 100 times faster in memory and 10 times faster on disk in comparison to the traditional Hadoop MapReduce
B) Apache claimed that Spark is able to run parallel jobs 1000 times faster in memory and 100 times faster on disk in comparison to the traditional Hadoop MapReduce
C) Apache claimed that Spark is able to run parallel jobs 50 times faster in memory and 5 times faster on disk in comparison to the traditional Hadoop MapReduce
D) Apache claimed that Spark is able to run parallel jobs 10 times faster in memory and 100 times faster on disk in comparison to the traditional Hadoop MapReduce
4. What is TRUE for "rehashing"?
A) It requires a new hash function, which maps values into a larger range of integers
B) All of the above
C) Key/value pairs from the original table can be inserted into the new, larger one
D) Allocate a new, larger hash table in memory
E) Both A and B
5. Which of the following is an SLAs specification in case of Internet Service Provider (ISP)?
A) All of the above
B) Mean Time To Recovery (MTTR)
C) Turnaround Time (TAT)
D) Mean Time Between Failures (MTBF)
Solutions:
| Question # 1 Answer: B | Question # 2 Answer: C | Question # 3 Answer: A | Question # 4 Answer: B | Question # 5 Answer: A |
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