A research team maintains a public repository of climate data. External researchers want to programmatically access subsets of the data based on date ranges and geographic regions. Which method should the team provide to enable efficient, automated access?

A REST API that accepts query parameters for date and location.

A read-only shared network drive.

A single large CSV file for download.

A journalist needs to extract data from a government website that publishes PDF reports and HTML tables. The website does not offer an API. The journalist needs to combine this data into a single structured dataset for analysis. Which approach is most effective?

Use a single PDF parsing library for both PDFs and HTML.

Only use the HTML tables and ignore the PDF reports.

Use a combination of PDF parsing libraries and HTML table scrapers, then normalize the output into a common format.

Manually copy the data from the PDFs and HTML tables into a spreadsheet.

A data architect is designing a system to collect user behavior data from a mobile app. The app sends events to a backend server, which stores them in a database. The architect needs to support both real-time dashboards and long-term historical analysis. Select all approaches that are appropriate for this requirement.

Use a NoSQL database for real-time event ingestion and a data warehouse for historical analysis.

Use an API to pull data from the app store's analytics service.

Store all events in flat CSV files and load them into a spreadsheet for analysis.

Use a single relational database for both real-time and historical workloads.

Stream events to a message queue, then load them into both a real-time store and a data warehouse.

What is the primary purpose of log files as a data source?

To store the primary data used in business applications

To replace the need for a database in data analysis

To record events and activities that occur within a system or application

To provide a backup of the entire database

A logistics company wants to automatically pull shipment tracking updates from a third-party carrier into its internal dashboard every 15 minutes. The carrier provides a REST endpoint that returns JSON payloads. The company's IT policy requires that no data be stored on local servers. Which solution should the data engineer implement?

Use a web scraper to parse the carrier's public tracking web page instead of the API.

Schedule a cloud-based serverless function to call the carrier's REST API and push the JSON to a cloud-hosted dashboard service.

Run a Python script on an on-premises workstation to fetch the API and save the JSON to a local folder.

Ask the carrier to email a CSV attachment every 15 minutes and manually upload it to the dashboard.

CompTIAData+

Domain 1Objective 2

Identify Data Sources DA0-001 Practice Questions (Page 2)

Part of the Data concepts and environments domain, which accounts for 20% of the DA0-001 exam. CompTIA does not publish an official question count, but from its 90-minute exam (~35–60 total, ~7–12 in this domain), expect 1–2 from this objective — we provide 31 practice questions to prepare you well beyond it. (estimate)

31questions here

7free pages

6concepts

20%of the exam

Questions 6–10

6application · easy
A research team maintains a public repository of climate data. External researchers want to programmatically access subsets of the data based on date ranges and geographic regions. Which method should the team provide to enable efficient, automated access?
Select an answer first
7expert · hard
A journalist needs to extract data from a government website that publishes PDF reports and HTML tables. The website does not offer an API. The journalist needs to combine this data into a single structured dataset for analysis. Which approach is most effective?
Select an answer first
8expert · hard · select all that apply
A data architect is designing a system to collect user behavior data from a mobile app. The app sends events to a backend server, which stores them in a database. The architect needs to support both real-time dashboards and long-term historical analysis. Select all approaches that are appropriate for this requirement.
Select an answer first
9foundation · easy
What is the primary purpose of log files as a data source?
Select an answer first
10application · medium
A logistics company wants to automatically pull shipment tracking updates from a third-party carrier into its internal dashboard every 15 minutes. The carrier provides a REST endpoint that returns JSON payloads. The company's IT policy requires that no data be stored on local servers. Which solution should the data engineer implement?
Select an answer first

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Identify Data Sources DA0-001 Practice Questions (Page 2)

Questions 6–10

A research team maintains a public repository of climate data. External researchers want to programmatically access subsets of the data based on date ranges and geographic regions. Which method should the team provide to enable efficient, automated access?

A journalist needs to extract data from a government website that publishes PDF reports and HTML tables. The website does not offer an API. The journalist needs to combine this data into a single structured dataset for analysis. Which approach is most effective?

What is the primary purpose of log files as a data source?

Keep studying — Data concepts and environments