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DASCA Senior Data Scientist Sample Questions:

1. Semi-structured data does NOT include:

A) Database system
B) Scientific data
C) Schema-full data
D) File systems

2. What is DevOps?

A) Software Development
B) Software Operations
C) Quality Assurance
D) All

3. Designing an algorithm to play chess is usually an example of which type of machine learning?

A) Clustering
B) Pattern density
C) Reinforcement learning
D) Supervised learning

4. Which of these are open-source column-oriented databases?

A) Accumulo
B) Cassandra
C) All of the above
D) HBase
E) Both A and B

5. Which of the following standardizes scores similar to a percentile rank but preserves equal interval properties of a Z-score?

A) Trend analysis
B) Medium Curve Equivalent (MCE)
C) None of the above
D) High Curve Equivalent (HCE)
E) Normal Curve Equivalent (NCE)

Solutions: