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CompTIA DA0-001 Exam Syllabus Topics:
| Topic | Details |
|---|---|
Data Concepts and Environments - 15% | |
| Identify basic concepts of data schemas and dimensions. | - Databases
- Data mart/data warehousing/data lake
- Schema concepts
- Slowly changing dimensions
|
| Compare and contrast different data types. | - Date - Numeric - Alphanumeric - Currency - Text - Discrete vs. continuous - Categorical/dimension - Images - Audio - Video |
| Compare and contrast common data structures and file formats. | - Structures
- Data file formats
|
Data Mining - 25% | |
| Explain data acquisition concepts. | - Integration
- Data collection methods
|
| Identify common reasons for cleansing and profiling datasets. | - Duplicate data - Redundant data - Missing values - Invalid data - Non-parametric data - Data outliers - Specification mismatch - Data type validation |
| Given a scenario, execute data manipulation techniques. | - Recoding data
- Derived variables |
| Explain common techniques for data manipulation and query optimization. | - Data manipulation
- Query optimization
|
Data Analysis - 23% | |
| Given a scenario, apply the appropriate descriptive statistical methods. | - Measures of central tendency Mean Median Mode - Measures of dispersion
- Frequencies/percentages |
| Explain the purpose of inferential statistical methods. | - t-tests - Z-score - p-values - Chi-squared - Hypothesis testing
- Simple linear regression |
| Summarize types of analysis and key analysis techniques. | - Process to determine type of analysis
- Type of analysis
|
| Identify common data analytics tools. | - Structured Query Language (SQL) - Python - Microsoft Excel - R - Rapid mining - IBM Cognos - IBM SPSS Modeler - IBM SPSS - SAS - Tableau - Power BI - Qlik - MicroStrategy - BusinessObjects - Apex - Dataroma - Domo - AWS QuickSight - Stata - Minitab |
Visualization - 23% | |
| Given a scenario, translate business requirements to form a report. | - Data content - Filtering - Views - Date range - Frequency - Audience for report
|
| Given a scenario, use appropriate design components for reports and dashboards. | - Report cover page
- Design elements
- Documentation elements
|
| Given a scenario, use appropriate methods for dashboard development. | - Dashboard considerations
- Development process
Delivery considerations
|
| Given a scenario, apply the appropriate type of visualization. | - Line chart - Pie chart - Bubble chart - Scatter plot - Bar chart - Histogram - Waterfall - Heat map - Geographic map - Tree map - Stacked chart - Infographic - Word cloud |
| Compare and contrast types of reports. | - Static vs. dynamic reports
- Ad-hoc/one-time report
- Tactical/research report |
Data Governance, Quality, and Controls - 14% | |
| Summarize important data governance concepts. | - Access requirements
- Security requirements
- Storage environment requirements
- Use requirements
- Entity relationship requirements
- Data classification
- Jurisdiction requirements
- Data breach reporting
|
| Given a scenario, apply data quality control concepts. | - Circumstances to check for quality
- Automated validation
- Data quality dimensions
- Data quality rule and metrics
- Methods to validate quality
|
CompTIA DA0-001 exam is an industry-leading certification test that is designed to provide individuals with the skills and knowledge required to understand various aspects of data management. CompTIA Data+ Certification Exam certification is geared towards professionals who are interested in working with data analytics, database management, and other related fields. Individuals who obtain this certification can increase their employment opportunities and obtain higher salary packages.
NEW QUESTION # 23
Which one of the following would not normally be considered a summary statistic?
- A. Standard deviation.
- B. Mean.
- C. z-score.
- D. Variance.
Answer: C
Explanation:
Simply put, a z-score (also called a standard score) gives you an idea of how far from the mean a data point is. But more technically it's a measure of how many standard deviations below or above the population mean a raw score is. A z-score can be placed on a normal distribution curve.
NEW QUESTION # 24
What test formatting option indicates that a field is required in an entity relationship diagram?
- A. Underlining.
- B. Boldfacing.
- C. Italicization.
- D. Capitalization.
Answer: B
NEW QUESTION # 25
A data analyst has been asked to create a sales report that calculates the rolling 12-month average for sales. If the report will be published on November 1, 2020, which of the following months shouts the report cover?
- A. October 31, 2019 to October 31, 2020
- B. October 31, 2020 to November 1, 2021
- C. October 1, 2019 to October 31, 2020
- D. November 1, 2019 to October 31, 2020
Answer: D
NEW QUESTION # 26
A data analyst must separate the column shown below into multiple columns for each component of the name:
Which of the following data manipulation techniques should the analyst perform?
- A. Transposing
- B. Concatenating
- C. Parsing
- D. Imputing
Answer: C
NEW QUESTION # 27
A data analyst has been asked to derive a new variable labeled "Promotion_flag" based on the total quantity sold by each salesperson. Given the table below:
Which of the following functions would the analyst consider appropriate to flag "Yes" for every salesperson who has a number above 1,000,000 in the Quantity_sold column?
- A. Mathematical
- B. Logical
- C. Date
- D. Aggregate
Answer: D
NEW QUESTION # 28
Which one of the following values will appear first if they are sorted in descending order?
- A. Molly.
- B. Adam.
- C. Aaron.
- D. Xavier.
Answer: D
NEW QUESTION # 29
What cybersecurity goal protects an organization's data from unauthorized modification?
- A. Confidentiality.
- B. Availability.
- C. Integrity.
- D. Non-repudiation.
Answer: C
Explanation:
The term data integrity refers to the accuracy and consistency of data. When creating databases, attention needs to be given to data integrity and how to maintain it. A good database will enforce data integrity whenever possible. For example, a user could accidentally try to enter a phone number into a date field.
NEW QUESTION # 30
Chris is building a database to store prices for items on a restaurant menu.
What data type is most appropriate for this field?
- A. Date.
- B. Numeric.
- C. Alphanumeric.
- D. Tags.
Answer: B
Explanation:
Prices are numbers stored in dollars and cents; as such, the data type needs to be capable of storing numbers.
NEW QUESTION # 31
Joseph is interpreting a left skewed distribution of test scores. Joe scored at the mean, Alfonso scored at the median, and gaby scored and the end of the tail.
Who had the highest score?
- A. Gaby
- B. Joe
- C. Alfonso
- D. Joseph
Answer: C
Explanation:
A left skewed distribution typically has a mean less than the median, with the tail representing the lowest score.
NEW QUESTION # 32
Zip code,____________, and___________ uniquely identify 87% of people in the United States.
- A. gender, first name
- B. first name, last name
- C. phone number, email address
- D. date of birth, gender
Answer: D
NEW QUESTION # 33
What analytics suite is offered by Microsoft and directly integrates with SQL Server Databases?
- A. Qlik.
- B. Domo.
- C. Dataroma.
- D. Power BI.
Answer: D
Explanation:
Power BI is a collection of software services, apps, and connectors that work together to turn your unrelated sources of data into coherent, visually immersive, and interactive insights. Your data may be an Excel spreadsheet, or a collection of cloud-based and on-premises hybrid data warehouses.
NEW QUESTION # 34
Which of the following is an example of a discrete data type?
- A. 2.5mi (4km)
- B. 8in (20cm)
- C. 10.7lbs (4.9kg)
- D. 5 kids
Answer: D
NEW QUESTION # 35
Oliver is designing an ETL process to copy sales data into a data warehouse on a hourly basis.
What approach should Oliver choose that would be most efficient and minimize the chance of losing historical data?
- A. Use ELT instead of ETL.
- B. Purge and load.
- C. Delta load.
- D. Bulk load.
Answer: C
Explanation:
Correct answer D. Delta load
Since Oliver needs to migrate changes every hour, a delta load is the best approach.
NEW QUESTION # 36
Consider this dataset showing the retirement age of 11 people, in whole years:
54, 54, 54, 55, 56, 57, 57, 58, 58, 60, 60
This tables show a simple frequency distribution of the retirement age data.
- A. 0
- B. 1
- C. 2
- D. 3
Answer: D
Explanation:
A measure of central tendency (also referred to as measures of centre or central location) is a summary measure that attempts to describe a whole set of data with a single value that represents the middle or centre of its distribution.
There are three main measures of central tendency: the mode, the median and the mean. Each of these measures describes a different indication of the typical or central value in the distribution.
What is the mode?
The mode is the most commonly occurring value in a distribution.
The most commonly occurring value is 54, therefore the mode of this distribution is 54 years.
NEW QUESTION # 37
A data analyst is asked on the morning of April 9, 2020, to create a sales report that identifies sales year to date. The daily sales data is current through the end of the day. Which of the following date ranges should be on the report?
- A. January 1, 2020 to April 1, 2020
- B. January 1, 2020 to April 9, 2020
- C. January 1, 2020 to April 7, 2020
- D. January 1, 2020 to April 8, 2020
Answer: D
NEW QUESTION # 38
When would you show time on a standard line chart?
- A. Y-axis
- B. Legend
- C. X-axis
- D. Color
Answer: C
NEW QUESTION # 39
Jhon is working on an ELT process that sources data from six different source systems.
Looking at the source data, he finds that data about the sample people exists in two of six systems.
What does he have to make sure he checks for in his ELT process?
Choose the best answer.
- A. Missing Data.
- B. Redundant Data.
- C. Invalid Data.
- D. Duplicate Data.
Answer: C
Explanation:
Duplicate Data.
While invalid, redundant, or missing data are all valid concerns, data about people exists in two of the six systems. As such, Jhon needs to account for duplicate data issues.
NEW QUESTION # 40
Which one of the following is a measure of dispersion?
- A. Mean.
- B. Median.
- C. Mode.
- D. Variance.
Answer: D
NEW QUESTION # 41
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CompTIA DA0-001 certification exam is an essential certification for IT professionals who want to validate their skills and knowledge in the field of data management. CompTIA Data+ Certification Exam certification can help individuals stand out in the job market and advance in their careers by demonstrating their expertise in managing data effectively and efficiently.
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