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DA0-001 Exam Results

Page: 7 / 27
Total 363 questions

CompTIA Data+ Certification Exam Questions and Answers

Question 25

Which of the following variable name formats would be problematic if used in the majority of data software programs?

Options:

A.

First_Name_

B.

FirstName

C.

First_Name

D.

First Name

Question 26

‘Which of the following is the BEST reason to use database views instead of tables?

Options:

A.

Views reduce the need for repetitive, complex data joins.

B.

Views allow for the storage of temporary data. whereas tables do not.

C.

Views allow for the joining of multiple data sources, whereas tables do not.

D.

Views can be used to restrict sensitive information.

Question 27

A research analyst collects ten data points from 1.000 specimens. The analyst will not need any additional data to complete the analysis and will not need to retrieve information by specifier. Which of the following is the best data structure for the analyst to use?

Options:

A.

NoSQL

B.

Flat file

C.

JSON

D.

Relational database

Question 28

An analyst needs to summarize the number of people in Chicago in 2022 using the following set of data:

Which of the following steps should the analyst use to provide results? (Select two).

Options:

A.

Aggregation

B.

Sorting

C.

Filtering

D.

Indexing

E.

Cleaning

F.

Replacing

Page: 7 / 27
Total 363 questions