Pass-Sure New DA0-002 Exam Review, DA0-002 Certification Questions

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CompTIA DA0-002 Exam Syllabus Topics:

SectionWeightObjectives
Topic 1: Visualization15%- Dashboard and report design
  • 1. Chart types and their applications
  • 2. Visualization best practices
  • 3. Dashboard components and layout
- Storytelling with data
  • 1. Narrative techniques for data communication
  • 2. Audience-appropriate visuals
  • 3. Executive summaries and key insights
Topic 2: Data Analysis24%- Descriptive statistics
  • 1. Data distributions
  • 2. Measures of central tendency
  • 3. Measures of dispersion
- Inferential statistics
  • 1. Correlation and regression basics
  • 2. Hypothesis testing
  • 3. Confidence intervals
- Analysis tools and techniques
  • 1. Libraries and functions for analysis
  • 2. BI platforms and notebooks
  • 3. SQL for data analysis
Topic 3: Data Mining25%- Data enrichment and integration
  • 1. Data mapping and lineage
  • 2. Joining and merging datasets
  • 3. Derived columns and calculated fields
- Data preparation and cleansing
  • 1. Handling missing values and duplicates
  • 2. Data cleaning techniques
  • 3. Data normalization and transformation
- Data acquisition and collection
  • 1. APIs and connectors
  • 2. ETL/ELT processes
  • 3. Data sources and ingestion methods
Topic 4: Data Governance, Quality, and Controls16%- Security and privacy
  • 1. Audit trails and logging
  • 2. Access controls and encryption
  • 3. Foundational AI considerations in data lifecycle
  • 4. Data classification and protection
- Data quality management
  • 1. Remediation strategies
  • 2. Quality dimensions (accuracy, completeness, consistency)
  • 3. Quality assessment and monitoring
- Data governance frameworks
  • 1. Policies, standards, and procedures
  • 2. Data stewardship and ownership
  • 3. Compliance requirements (GDPR, CCPA, etc.)
Topic 5: Data Concepts and Environments20%- Data types and metadata
  • 1. Data types (string, numeric, Boolean, date)
  • 2. Metadata and its role in data management
- Database fundamentals
  • 1. Cloud and containerized data environments
  • 2. Relational vs. non-relational databases
  • 3. Schemas and data models
- Data structures and formats
  • 1. Common data formats (JSON, XML, CSV)
  • 2. Structured, semi-structured, and unstructured data
  • 3. File types and their use cases

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DA0-002 Certification Questions, Latest DA0-002 Exam Duration

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CompTIA Data+ Exam Sample Questions (Q62-Q67):

NEW QUESTION # 62
A manager wants to use the information in a recurring report on incomplete timesheets for the prior month to guide employee outreach. Which of the following report types is the best for this task?

Answer: A

Explanation:
This question is part of theVisualization and Reportingdomain, focusing on selecting the appropriate report type for a specific purpose. The manager needs a recurring report on incomplete timesheets to guide outreach, which requires a concise, data-driven report.
* Summary (Option A): A summary report aggregates data (e.g., total incomplete timesheets per employee) and presents it concisely, making it ideal for recurring use to guide decisions like employee outreach.
* Infographic (Option B): Infographics are visual representations for broad audiences, not typically used for recurring, detailed employee outreach tasks.
* Snapshot (Option C): A snapshot report captures data at a specific point in time, but it's not ideal for recurring analysis of trends or aggregates.
* Ad hoc (Option D): Ad hoc reports are one-time, on-demand reports, not suitable for recurring needs.
The DA0-002 Visualization and Reporting domain includes "the appropriate visualization in the form of a report" , and a summary report best fits the need for recurring, actionable data.
Reference: CompTIA Data+ DA0-002 Draft Exam Objectives, Domain 4.0 Visualization and Reporting


NEW QUESTION # 63
A data engineer needs to add a process that will run after an employee table is loaded. The engineer does not know the name of the process that loads employee data. Which of the following is the best document for the engineer to review to find this information?

Answer: B

Explanation:
A data lineage report documents the movement and transformation of data throughout systems and processes. It shows where data originates, how it is processed, and the dependencies between processes. Reviewing the data lineage report would help the engineer identify the process responsible for loading the employee table and determine where to add the subsequent process.


NEW QUESTION # 64
A manager wants a report that contains the days off for each direct report. The manager needs this report to always be up-to-date with the latest data. Which of the following describes the refresh frequency that the manager is requesting?

Answer: A

Explanation:
Real-time refresh ensures the report is continuously updated with the latest data as changes occur, keeping it always current.


NEW QUESTION # 65
A sales manager wants to understand how sales are trending year over year. Which of the following chart types is the most appropriate to display the information?

Answer: C


NEW QUESTION # 66
Which of the following is a NoSQL database?

Answer: D


NEW QUESTION # 67
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