CompTIADataSys+
Domain 1Objective 1
Database Structure Types DS0-001 Practice Questions (Page 7)
Part of the Database fundamentals domain, which accounts for 24% of the DS0-001 exam. CompTIA does not publish an official question count, but from its 90-minute exam (~35–60 total, ~8–14 in this domain), expect 2–4 from this objective — we provide 33 practice questions to prepare you well beyond it. (estimate)
33questions here
7free pages
9concepts
24%of the exam
Questions 31–33
- 31
An e-commerce platform uses Amazon DynamoDB to store shopping cart items. Each item has a partition key of user ID and a sort key of product ID. The platform needs to support a new feature that shows all items in a user's cart sorted by the time they were added. Currently, the sort key is product ID. What is the most efficient way to support this new query pattern?
Select an answer first - 32
An IoT platform ingests sensor data from millions of devices. Each reading includes device ID, timestamp, and sensor value. The platform needs to store this data and query it by device ID and time range. They also need to support high write throughput. Which database service is most suitable?
Select an answer first - 33
A gaming company needs a database to store player session data, including player ID, level, score, and inventory items. The workload is highly variable, with millions of concurrent players during new game launches. They need low-latency access to individual player records and the ability to scale automatically without managing servers. Which database service is most suitable?
Select an answer first
Finished these 3 questions?
Review the revealed explanations, or continue through the curriculum.
No more pagesBack to DS0-001
Free Basic Practice is a study aid with revealable answers — not a scored exam. Examers.io is independent and not affiliated with or endorsed by CompTIA. “DS0-001” is a trademark of its owner, used for identification only.