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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 consistency model does DynamoDB use by default for read operations?

    Answer: Eventually consistent

    DynamoDB reads are eventually consistent by default unless strongly consistent reads are requested.

  2. What is captured by DynamoDB Streams?

    Answer: An ordered record of item-level modifications

    DynamoDB Streams capture a time-ordered sequence of item-level changes in a table.

  3. Which service provides a managed, MySQL- and PostgreSQL-compatible relational database with up to 5x throughput of MySQL?

    Answer: Amazon Aurora

    Aurora is MySQL/PostgreSQL-compatible and offers up to 5x MySQL throughput.

  4. What is the primary benefit of using an RDS Multi-AZ deployment over a single-AZ deployment?

    Answer: Automatic failover and higher availability

    Multi-AZ provides automatic failover to a standby, increasing availability.

  5. Which Redshift feature distributes query processing across multiple nodes for performance?

    Answer: Massively Parallel Processing (MPP)

    Redshift uses MPP architecture to parallelize queries across compute nodes.

  6. Which AWS database service is compatible with Apache Cassandra workloads?

    Answer: Amazon Keyspaces

    Amazon Keyspaces is a managed, Cassandra-compatible wide-column database.

  7. How does Aurora Global Database support disaster recovery?

    Answer: By replicating to secondary regions with low latency for fast failover

    Aurora Global Database replicates to secondary regions, enabling cross-region disaster recovery with low replication lag.