RDS, Aurora, DynamoDB, Redshift, S3, EBS, EFS, FSx and Glacier use cases and limits.
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- What is Amazon RDS?
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Managed relational database service supporting MySQL, PostgreSQL, MariaDB, Oracle, and SQL Server- What does Multi-AZ deployment provide in RDS?
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Automatic failover to a standby replica in another availability zone for high availability- What are RDS Read Replicas?
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Read-only copies of a database that can be in different regions for scaling read capacity- What is the maximum storage for RDS instances?
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65 TB for most RDS database engines- How often does RDS perform automatic backups?
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Daily, with retention period configurable from 1 to 35 days- What is Amazon Aurora?
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MySQL and PostgreSQL-compatible relational database engine built for high performance and availability- How many read replicas can Aurora have in the same region?
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Up to 15 Aurora Read Replicas- What is Aurora Global Database?
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Read-only secondary regions with fast replication across regions for disaster recovery- Across how many availability zones does Aurora replicate data automatically?
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Three availability zones with synchronous replication- What is the maximum storage capacity of Aurora?
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Automatically scales up to 64 TB- What type of database is DynamoDB?
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NoSQL key-value and document database service- What is a partition key in DynamoDB?
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Primary key that determines which partition stores the item- What is a sort key in DynamoDB?
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Optional secondary key component for sorting items within a partition- What are DynamoDB capacity units?
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Read and write capacity units defining provisioned throughput for the table- What is the maximum item size in DynamoDB?
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400 KB per item
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