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DASCA Senior Data Scientist Sample Questions:

1. Which of the following is correct about customer lifetime value (CLTV)?
i. Most organizations determine the current customer lifetime value (CLTV) based on historic sales over past
12 to 18 months
ii. The goal of the CLTV score is to help marketing and store personnel to determine the "value" of a customer

A) Only i
B) Both i and ii
C) Only ii

2. Which of the following is True about Time Series Analysis?

A) All of the above
B) Predicting when/whether an event will occur, such as a failure of the machine generating the data
C) Projecting the value of the time series at future points in time, such as a stock whose price we want to predict
D) Both A and B
E) Identifying interesting patterns in a corpus of time series data that is too large for a human to comb through

3. Spark should be used when:

A) None of the above
B) Data is not massive
C) Data is massive
D) Both A and B

4. Which of the following is NOT a cluster management tool?

A) Zettaset Orchestrator
B) Apache Ambari
C) Apache Mesos
D) Apache Hadoop

5. The aim of developing Scribe was to offer reliability with using:

A) None of the above
B) High disk space usage
C) Complex protocols
D) Extensive protocols

Solutions: