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CompTIA DA0-001 Certification Exam is a comprehensive test that assesses the candidate's knowledge and understanding of various concepts related to data management. It consists of 90 multiple-choice questions that need to be completed within 90 minutes. DA0-001 exam is available in English, Japanese, and Portuguese languages, and it can be taken at any authorized Pearson VUE testing center worldwide. DA0-001 exam is considered to be moderately difficult, and candidates are advised to prepare thoroughly before attempting it.

CompTIA DA0-001, also known as CompTIA Data+ Certification, is a globally recognized certification designed for professionals who aspire to have a career in the field of data analytics. CompTIA Data+ Certification Exam certification exam validates the skills and knowledge required to develop and maintain data analytics solutions, including data integration, data quality, and data governance.

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CompTIA Data+ Certification Exam Sample Questions (Q58-Q63):

NEW QUESTION # 58
An analyst wants to determine whether a relationship between an individual's age and voting preferences exists. Which of the following is the best statistical method for the analyst to use?

A. P-value
B. F-test
C. Z-score
D. Chi-squared

Answer: D

Explanation:
The Chi-squared test is used to analyze relationships between two categorical variables. In this case, age groups and voting preferences are both categorical variables, making chi-squared the most appropriate test.
Reference: CompTIA Data+ DA0-001 Official Guide

NEW QUESTION # 59
Taylor wants to investigate how manufacturing, marketing, and sales expenditures impact overall profitability for her company.
Which of the following systems is the most appropriate?

A. OLAP.
B. OLTP.
C. Data warehouse.
D. Data mart.

Answer: C

Explanation:
Explanation
A Data mart is too narrow, because Taylor needs data from across multiple divisions.
OLAP is a broad term for analytical processing, and OLTP systems are transactional and not ideal for the task.
Since Taylor is working with data across multiple different divisions, she will work with a Data warehouse.

NEW QUESTION # 60
During data profiling, an analyst decides to recode the status column in the following data set:

Which of the following data concerns explains why the analyst wants to take this action?

A. Invalidity
B. Duplication
C. Inconsistency
D. Redundancy

Answer: C

NEW QUESTION # 61
An analyst runs a report on a daily basis, and the number of datapoints must be validated before the data can be analyzed. The number of datapoints increases each day by approximately 20% of the total number from the day before. On a given day, the number of datapoints was 8,798. Which of the following should be the total number of datapoints on the next day?

A. 10,600
B. 10,800
C. 9,600
D. 7,038

Answer: A

Explanation:
This is because the number of datapoints increases each day by approximately 20% of the total number from the day before. Therefore, to find the number of datapoints on the next day, we can use the formula:

Plugging in the given values, we get:

Since we are dealing with whole numbers, we can round up the result to the nearest integer, which is 10,600.

NEW QUESTION # 62
A data analyst is compiling a report that a Chief Executive Officer needs for an impromptu meeting. The report should include information on the previous day's performance. Which of the following reports should the analyst provide?

A. Dynamic
B. Ad hoc
C. Recurring
D. Tactical

Answer: B

NEW QUESTION # 63
......

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