CompTIA Data+ Certification DA0-001 Practice Test Questions

  Edina  05-23-2022

CompTIA Data+ is the only entry-level, vendor-neutral, hands-on analytics certification on the market. PassQuestion provides the latest CompTIA Data+ Certification DA0-001 Practice Test Questions that will allow you to prepare for the exam in a better way. It carries all the latest and accurate DA0-001 exam questions and answers that will surely be questioned in the real exam. The real exam simulation feature of our DA0-001 Practice Test Questions helps you to learn and prepare for the exam under the actual environmental constraints. If you are going through all of our CompTIA Data+ Certification DA0-001 Practice Test Questions, then you will be able to clear the DA0-001 CompTIA Data+ exam on the first attempt.

CompTIA Data+ Certification (DA0-001)

CompTIA Data+ is an early-career data analytics certification for professionals tasked with developing and promoting data-driven business decision-making.The CompTIA Data+ exam will certify the successful candidate has the knowledge and skills required to transform business requirements in support of data-driven decisions through mining and manipulating data, applying basic statistical methods, and analyzing complex datasets while adhering to governance and quality standards throughout the entire data life cycle.

CompTIA Data+ (DA0-001) validates the data analytics skills and talent that organizations need to fuel innovation. CompTIA Data+ (DA0-001) is a certification for professionals which are assigned with facilitating and promoting data-driven company decision-making and it helps to Better Analyze and Interpret Data, Mine data more effectively, Analyze with rigor and Avoid confounding results.

Test Details

Required exam: DA0-001
Number of questions: 90 questions
Types of questions: Multiple choice and performance-based
Length of test: 90 minutes
Recommended experience CompTIA recommends 18–24 months of experience in a report/business analyst job role, exposure to databases and analytical tools, a basic understanding of statistics, and data visualization experience
Languages: English 
Passing score: 675 (on scale of 100–900)
Price: $239 USD

CompTIA Data+ Certification Exam Objectives

1.0 Data Concepts and Environments 15%
2.0 Data Mining 25%
3.0 Data Analysis 23%
4.0 Visualization 23%
5.0 Data Governance, Quality, and Controls 14%

View Online CompTIA Data+ Certification DA0-001 Free Questions

1. A hypothesis test sometimes rejects the null hypothesis even if the true value of the population parameter is the same as the value in the null hypothesis.
This type of result is known as:
A. A Type I Error
B. A Type II Error
C. A correct inference
D. The confidence level of the inference
Answer: A
2. The sales of a grocery store had an average of $8,000 per day. The store introduced several advertising campaigns in order to increase sales.
To determine whether the advertising campaigns have been effective in increasing sales, a sample of 64 days of sales was selected, and the sample mean was $8,300 per day.
The correct null and alternative hypotheses to test whether there has been a significant increase are:
A. Null: Sample mean is 8,000; Alternative: Sample mean is greater than or equal to 8,000.
B. Null: Sample mean is 8,000; Alternative: Sample mean is greater than 8,000.
C. Null: Population mean is 8,000; Alternative: Population mean is greater than or equal to 8,000.
D. Null: Population mean is 8,000; Alternative: Population mean is greater than 8,000.
Answer:  D
3. A data analyst has been asked to create an ad-hoc sales report for the Chief Executive Officer (CEO). Which of the following should be included in the report?
A. The sales representatives' home addresses
B. Line-item SKU numbers
C. YTD total sales
D. The customers' first and last names
Answer:  C
4. Which of the following can be used to translate data into another form so it can only be read by a user who has a key or a password?
A. Data encryption
B. Data transmission
C. Data protection
D. Data masking
Answer:  A
5. Q3 2020 has just ended, and now a data analyst needs to create an ad-hoc sales report that demonstrates how well the Q3 2020 promotion went versus last year's Q3 promotion.
Which of the following date parameters should the analyst use?
A. 2019 vs. YTD 2020
B. Q3 2019 vs. Q3 2020
C. YTD 2019 vs. YTD 2020
D. Q4 2019 vs. Q3 2020
Answer: B
6. What Python library provides data analysts with access to tools that allow them to better structure data?
A. Numpy
B. TensorFlow
C. pandas
D. Keras
Answer: C
7. Melinda is analyzing a movie dataset, where individual films have a star rating between 1 and 5. What type of data is this?
A. Nonparametric data
B. Redundant data
C. Duplicate data
D. Data outlier
Answer: A
8. Which of the following is an example of a discrete data type?
A. 8in (20cm)
B. 5 kids
C. 2.5mi (4km)
D. 10.7lbs (4.9kg)
Answer: B
9. George wants to integrate data from his city's open data portal. Reading the website, he sees that he can download the data he wants as a CSV file. After manually downloading the file, he writes the code to transform the data and load it into his database.
Presuming the data changes once a month, what can George do to ensure he has the most up-to-date data from the city?
A. Manually check the city's website every day.
B. Contact the city and encourage the development of an API.
C. Automate the process that downloads, transforms, and uploads the CSV file.
D. Nothing, George has already successfully loaded the data.
Answer: C
10. Which of the following contains alphanumeric values?
A. 10.1Ε²
B. 13.6
C. 1347
D. A3J7
Answer: D

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