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| Certification Vendor: | CompTIA |
|---|---|
| Exam Name: | CompTIA Data+ Certification Exam |
| Exam Number: | DA0-001 |
| Certificate Validity Period: | 3 years |
| Real Exam Qty: | Up to 90 |
| Available Languages: | English, Thai, Japanese |
| Related Certifications: | CompTIA A+ CompTIA Security+ CompTIA Network+ |
| Exam Price: | $253 USD / £150 GBP / €228 EUR |
| Exam Format: | Multiple-choice, Performance-based |
| Passing Score: | 675 (on a scale of 100–900) |
| Exam Duration: | 90 minutes |
| Recommended Training: | CompTIA CertMaster Learn CompTIA Official Study Materials |
| Exam Registration: | Pearson VUE Scheduling CompTIA Official Registration |
| Sample Questions: | CompTIA DA0-001 Sample Questions |
| Exam Way: | Online remote proctored or onsite at Pearson VUE test centers |
| Pre Condition: | Recommended: 18–24 months of experience in report/business analysis, exposure to databases and analytical tools, basic statistics knowledge, and data visualization experience; no mandatory prerequisites |
| Official Syllabus URL: | https://www.comptia.org/certifications/data |
IT인증자격증만 소지한다면 일상생활에서 많은 도움이 될것입니다. 하지만 문제는 어떻게 간단하게 시험을 패스할것인가 입니다. ExamPassdump는 IT전문가들이 제공한 시험관련 최신 연구자료들을 제공해드립니다.ExamPassdump을 선택함으로써 여러분은 성공도 선택한것이라고 볼수 있습니다. ExamPassdump의CompTIA 인증DA0-001시험대비 덤프로CompTIA 인증DA0-001시험을 패스하세요.
CompTIA DA0-001 시험은 데이터와 관련된 전문가들에게 중요한 자격증입니다. 데이터 관리, 분석 및 보안에 대한 높은 수준의 지식과 전문성을 증명합니다. 이 자격증을 보유한 전문가들은 전 세계적으로 비즈니스 및 조직에서 데이터가 점점 더 중요해지면서 다양한 산업에서 높은 수요를 받게 될 것입니다. CompTIA DA0-001 시험에 합격함으로써 전문가들은 자신의 분야에서 탁월함에 대한 약속을 증명하고 경력을 한 단계 더 나아갈 수 있습니다.
Comptia DA0-001 인증은 공급 업체 중립적이므로 특정 기술이나 플랫폼과 관련이 없음을 의미합니다. 이로 인해 의료, 금융 및 정부를 포함한 다양한 산업 분야에서 일하는 전문가에게 이상적인 인증이 있습니다. 인증은 또한 빅 데이터를 사용하고 대형 데이터 세트를 관리하고 분석하는 방법에 대한 더 깊은 이해를 얻고 자하는 전문가에게도 적합합니다. 인증 시험은 개인의 데이터 관리, 데이터 분석 및 데이터 보안 능력을 테스트하도록 설계되었으며 시험에 합격하면 이러한 영역에서 높은 수준의 역량을 보여줍니다.
Comptia DA0-001 (Comptia Data+ Certification) 인증 시험은 데이터 관리에 대한 기술과 지식을 입증하려는 IT 전문가에게 필수 인증입니다. 인증은 전 세계적으로 인정되며 공급 업체 중립적이며 광범위한 기술 및 플랫폼에서 일하고 싶은 IT 전문가에게 매력적인 인증이됩니다.
질문 # 386
Given the diagram below:
Which of the following data schemas shown?
정답：D
설명：
Explanation
A relational database is a type of database that organizes data into tables, where each table has a fixed number of columns and a variable number of rows. Each row in a table represents a record or an entity, and each column represents an attribute or a property of that entity. The tables are linked by common fields, called keys, which enable the database to establish relationships between the data. A relational database schema is a diagram that shows the structure and organization of the tables, columns, keys, and constraints in a relational database. The diagram given in the question is an example of a relational database schema, as it shows two tables: "Runs" and "Experiments", with their respective columns, data types, and primary keys. The "Runs" table also has a foreign key that references the "ExperimentId" column in the "Experiments" table, indicating a relationship between the two tables. Therefore, the correct answer is D. References: What is a database schema? | IBM, Database Schema - Javatpoint
질문 # 387
A data analyst is designing a dashboard that will provide a story of sales and determine which site is providing the highest sales volume per customer. The analyst must choose an appropriate chart to include in the dashboard. The following data is available:
Which of the following types of charts should be considered?
정답：B
설명：
A scatter chart using sales volume and average sales per customer is the best type of chart to include in the dashboard. A scatter chart is a type of chart that displays the relationship between two numerical variables using dots or markers. A scatter chart can show how one variable affects another, how strong the correlation is between them, and how the data points are distributed. In this case, a scatter chart can show the story of sales and determine which site is providing the highest sales volume per customer by plotting the sales volume on the x-axis and the average sales per customer on the y-axis. Each dot on the chart will represent a site, and the analyst can easily compare the sites based on their position on the chart. A site with a high sales volume and a high average sales per customer will be in the upper right quadrant, indicating a high performance. A site with a low sales volume and a low average sales per customer will be in the lower left quadrant, indicating a low performance. A site with a high sales volume and a low average sales per customer will be in the lower right quadrant, indicating a high volume but low value. A site with a low sales volume and a high average sales per customer will be in the upper left quadrant, indicating a low volume but high value. A scatter chart can also show if there is a positive or negative correlation between the two variables, or if there is no correlation at all.
A positive correlation means that as one variable increases, so does the other. A negative correlation means that as one variable increases, the other decreases. No correlation means that there is no relationship between the two variables.
The other types of charts are not as suitable for this purpose. A line chart is a type of chart that displays the change of one or more variables over time using lines. A line chart can show trends, patterns, and fluctuations in the data. However, in this case, there is no time variable involved, so a line chart would not be appropriate.
A pie chart is a type of chart that displays the proportion of each category in a whole using slices of a circle.
A pie chart can show how each category contributes to the total and compare the relative sizes of each category. However, in this case, there are two numerical variables involved, so a pie chart would not be able to show their relationship. A column chart is a type of chart that displays the comparison of one or more variables across categories using vertical bars. A column chart can show how each category differs from each other and rank them by size. However, in this case, a column chart would not be able to show the relationship between sales volume and average sales per customer, as it would only show one variable for each site.
질문 # 388
Which of the following descriptive statistical methods are measures of central tendency? (Choose two.)
정답：A,F
설명：
Mean and mode are measures of central tendency, which describe the typical or most common value in a distribution of data. Mean is the arithmetic average of all the values in a dataset, calculated by adding up all the values and dividing by the number of values. Mode is the most frequently occurring value in a dataset. Other measures of central tendency include median, which is the middle value when the data is sorted in ascending or descending order.
질문 # 389
The sales grocery store had an average of $8000 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 $8000 per day.
The correct null and alternative hypotheses to test whether there has been a significant increase are
정답：A
설명：
Since you are trying to determine whether sales increased above the current average of $8000, the population mean for the null hypothesis is $8000; whereas the mean for the alternative hypothesis is greater than $8000. Hypotheses are always stated in terms of population you are working with, ruling out options A and B.
The test is whether sales are higher than the average of $8000 per day, which rules out option C.
질문 # 390
Which of the following BEST describes standard deviation?
정답：D
질문 # 391
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