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AWS Database Services Flashcards

7 cards from real AWS practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.

Read the first 7 AWS Database Services flashcards as text

  1. Which Aurora feature allows the database to automatically start, stop, and scale capacity based on application demand?

    Answer: Aurora Serverless

    Aurora Serverless automatically scales compute capacity up and down based on load.

  2. How many copies of your data does Amazon Aurora maintain across Availability Zones?

    Answer: Six copies across three AZs

    Aurora stores six copies of data across three Availability Zones.

  3. Which DynamoDB feature provides a fully managed in-memory cache to reduce read latency to microseconds?

    Answer: DAX

    DynamoDB Accelerator (DAX) is an in-memory cache delivering microsecond read latency.

  4. What is the purpose of DynamoDB Global Tables?

    Answer: Provide multi-region, multi-active replication

    Global Tables replicate data across multiple regions with multi-active read/write support.

  5. Which RDS engine is NOT available as a managed option?

    Answer: MongoDB

    RDS supports MySQL, PostgreSQL, MariaDB, Oracle, and SQL Server, but not MongoDB.

  6. What does DynamoDB's TTL (Time to Live) feature do?

    Answer: Automatically deletes expired items

    TTL automatically removes items after a specified expiration timestamp.

  7. Which service is best suited for storing and querying time-series data like IoT sensor readings?

    Answer: Amazon Timestream

    Amazon Timestream is a purpose-built, serverless time-series database.