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| Section | Weight | Objectives |
|---|---|---|
| Topic 1: Visualization | 20% | - Chart and dashboard design principles - Data storytelling and reporting tools - Visualization best practices |
| Topic 2: Data Concepts and Environments | 15% | - Data types, structures, and file formats - Data lifecycle and data ecosystems - Data storage systems and platforms |
| Topic 3: Data Mining | 25% | - Data manipulation and cleaning techniques - Data collection and extraction methods - Data processing and transformation |
| Topic 4: Data Governance, Quality, and Controls | 15% | - Data quality management - Data governance frameworks and policies - Compliance, privacy, and security controls |
| Topic 5: Data Analysis | 25% | - Statistical methods and analysis techniques - Trend and pattern identification - Data interpretation and reporting |
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NEW QUESTION # 127
A data analyst is designing a report for the business review team. The team lists the following requirements for the report:
- Specific data points
- Color branding
- Labels and terminology
- Suggested charts and tables
Which of the following components is missing from the requirements?
Answer: D
Explanation:
The requirements cover content and design aspects but do not specify how the report will be delivered, such as format, platform, or distribution method, which is essential for completing the report requirements.
NEW QUESTION # 128
Which of the following is the best tool for database management?
Answer: A
Explanation:
Toad is a database management tool specifically designed for working with databases, including querying, administration, performance tuning, and database development. The other options are primarily development, programming, or data science environments rather than dedicated database management tools.
NEW QUESTION # 129
A data analyst is analyzing the following dataset:
Transaction Date
Quantity
Item
Item Price
12/12/12
11
USB Cords
9.99
11/11/11
3
Charging Block
8.89
10/10/10
5
Headphones
50.15
Which of the following methods should the analyst use to determine the total cost for each transaction?
Answer: D
Explanation:
This question falls under theData Analysisdomain, focusing on calculating new values from existing data.
The task is to determine the total cost per transaction, which involves multiplying Quantity by Item Price.
* Parsing (Option A): Parsing involves breaking down data (e.g., splitting a string), not calculating totals.
* Scaling (Option B): Scaling adjusts numerical values to a common range (e.g., normalization), not relevant for calculating totals.
* Compressing (Option C): Compressing reduces data size, not applicable to calculating costs.
* Deriving (Option D): Deriving involves creating new data fields by performing calculations on existing ones (e.g., Total Cost = Quantity ร Item Price), which fits the task.
The DA0-002 Data Analysis domain includes "applying the appropriate descriptive statistical methods," such as deriving new fields through calculations to analyze data.
Reference: CompTIA Data+ DA0-002 Draft Exam Objectives, Domain 3.0 Data Analysis.
NEW QUESTION # 130
A data analyst needs to generate a list of employees who currently live in Dade, FL. Given the following table:
Which of the following SQL statements should the analyst use to complete this task?
Answer: D
Explanation:
The requirement is to return only employees who live in both the city of Dade and the state of FL.
Using the AND operator ensures that both conditions must be true for a record to be included in the result set.
NEW QUESTION # 131
A data analyst receives an email from the IT department about renewing the company password, and the analyst follows the password reset link as required. Later in the week, the analyst receives the following notification when running a recurring analysis that connects to the database:
Log-in failed for user '<username>'
Which of the following is most likely the reason for this issue?
Answer: C
Explanation:
This question falls under theData Governancedomain, focusing on data access and security troubleshooting.
The analyst reset their password, but the recurring analysis failed to log in, indicating a mismatch.
* The company changed its database authentication method (Option A): This would affect all users, not just the analyst, and there's no indication of a broader change.
* The password expiration process locked the account (Option B): The analyst reset the password as required, so the account isn't likely locked due to expiration.
* The analyst did not change the password used to launch the report (Option C): Recurring analyses often use stored credentials. If the analyst updated their password but didn't update the stored credentials for the analysis, the login would fail, making this the most likely reason.
* The company is experiencing issues with password replication (Option D): This is possible but less likely without evidence of broader system issues.
The DA0-002 Data Governance domain includes "data privacy concepts," and ensuring stored credentials match updated passwords is a common issue in recurring analyses.
Reference: CompTIA Data+ DA0-002 Draft Exam Objectives, Domain 5.0 Data Governance.
NEW QUESTION # 132
......
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