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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 Amazon RDS feature creates a synchronous standby replica in a different Availability Zone for high availability?

    Answer: Multi-AZ deployment

    Multi-AZ deployment maintains a synchronous standby replica in another AZ for automatic failover.

  2. What is the primary purpose of Amazon RDS Read Replicas?

    Answer: Offloading read traffic to scale read performance

    Read Replicas use asynchronous replication to scale read-heavy workloads.

  3. Which DynamoDB capacity mode automatically scales to accommodate traffic without manual provisioning?

    Answer: On-demand mode

    On-demand mode scales capacity automatically and charges per request.

  4. What does Amazon ElastiCache primarily provide?

    Answer: In-memory caching layer

    ElastiCache provides managed in-memory caching using Redis or Memcached.

  5. Which AWS database service is purpose-built for petabyte-scale data warehousing and analytics?

    Answer: Amazon Redshift

    Redshift is a columnar, MPP data warehouse for analytical queries at scale.

  6. Amazon Neptune is optimized for which type of database workload?

    Answer: Graph relationships

    Neptune is a managed graph database supporting property graph and RDF models.

  7. What is the maximum number of Availability Zones across which DynamoDB automatically replicates data within a region?

    Answer: Three

    DynamoDB synchronously replicates data across three AZs in a region for durability.