Question 1

An analyst is using a Data Flow Diagram (DFD) to depict the flow of data across a data security company. Which of the following is true about DFDs?

Options :

A : Can be categorized as Logical or Physical

B : Can illustrate a sequence of activities

C : Provide similar information as process flows

D : Are used to model data attributes

Answer: A

Question 2

The results for a certification exam were revealed in percentage and percentile. How would you infer the results for an attendee at: 75%, 90th percentile?

Options :

A : While the attendee-s exam score was 90/100. the attendee did better than 75% of the attendees

B : While the attendee-s exam score was 90/100. the attendee did better than 25% of the attendees

C : While the attendee-s exam score was 75/100. the attendee did better than 10% of the attendees

D : While the attendee-s exam score was 75/100. the attendee did better than 90% of the attendees

Answer: D

Question 3

Based on the results of a recently completed analytics initiative, the Human Resource department for a major department store implemented a change to its hiring practice to address the attrition rates of its sales associates. The new policy stated that candidates applying for sales positions must possess at least 3 years of relevant sales experience to be considered. After implementing the change, attrition rates are 10% higher and management is frustrated. Which of the following could result in this outcome?

Options :

A : The results of analysis have been incorrectly interpreted

B : Sales experience is not a relevant skill

C : Analytics is not helpful given this situation

D : The change proposed is not aligned to company strategy

Answer: D

Question 4

A pharmaceutical company is conducting research to determine whether a new medicine in development is more successful in reducing the pain associated with rheumatoid arthritis then their current drug in the market. A group of volunteers are selected for the research. One set of participants is provided the existing drug while a second set of participants is given the new drug.Which technique is being applied?

Options :

A : Observational design

B : Block design

C : A/B testing

D : Natural experiment

Answer: C

Question 5

A new dataset describing employee salaries is received by a company. A colleague wonders whether a variable follows a Gaussian distribution. Which of the following plots would demonstrate this?

Options :

A : Normal probability plot

B : Scatterplot

C : Boxplot

D : Lowess curve

Answer: A

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