DA0-002 Practice Test

DA0-002 Practice Test practice questions, page 3 of 6, with answer review and explanations.

Question 11

Which of the following data repositories stores unformatted data in its original, raw form?

  1. Data warehouse
  2. Data silo
  3. Data mart
  4. Data lake

Question 12

A data analyst must combine service calls into low-, medium-, and high-priority levels in order to analyze organizational responses. Which of the following techniques should the analyst use for this task?

  1. Augmentation
  2. Imputation
  3. Scaling
  4. Binning

Question 13

Which of the following explains the purpose of UAT?

  1. To begin the software application development process to enhance user experience
  2. To ensure all parts of the software application work together after each sprint
  3. To review software application crashes, create patches, and deploy to users
  4. To validate and verify that a software application meets the needs and requirements of users

Question 14

A data analyst notices that a certain field that stores customer IDs in a defined format has incorrect values. Which of the following could help the analyst identify the issue?

  1. Outliers
  2. Validation
  3. Redundancy
  4. Completeness

Question 15

Which of the following tools would a data analyst most likely use to modify a simple data connection property in a configuration file?

  1. RStudio
  2. SSMS
  3. Notepad++
  4. Toad