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DASCA Senior Data Scientist Sample Questions:

1. HDFS supports which quotas?

A) Name quotas
B) Both A and B
C) Space quotas
D) None of the above

2. The main purpose of a Statement Of Work (SOW) is to get:

A) All of the above
B) Everybody on the same page about what work should be done
C) What expectations are realistic
D) None of the above
E) What the priorities are

3. Which of the following is correct for Markov chain?

A) A Markov chain is a sequence of random variables X1, X2
B) A Markov chain is a sequence of fixed variables X1, X2
C) A Markov chain is the state of a system at sequential points in time
D) Both B and C
E) Both A and B

4. A workflow refers to a:

A) Indirected cyclic graph
B) Directed cyclic graph
C) Directed acyclic graph
D) Indirected acyclic graph

5. SpamAssassin has been developed to detect:

A) Email with virus
B) Email with big attachments
C) Spam emails
D) None of the above

Solutions: