1. What is RDS ? Junior A. a multi-region, multi-active replicated DynamoDB table for low-latency global access B. Relational Database Service; managed relational databases like PostgreSQL and MySQL C. a cross-region Aurora setup with low-latency reads and fast disaster recovery D. a MySQL- and PostgreSQL-compatible relational database built for the cloud with auto-scaling storage
2. Which term means: "Relational Database Service; managed relational databases like PostgreSQL and MySQL"? Junior A. RDS Multi-AZ B. RDS C. Aurora Global Database D. Read Replica
3. Which statement is correct? Junior A. RDS — an ordered, time-ordered log of item-level changes in a DynamoDB table B. RDS — a managed in-memory cache service supporting Redis and Memcached engines C. RDS — Relational Database Service; managed relational databases like PostgreSQL and MySQL D. RDS — an in-memory cache for DynamoDB delivering microsecond read latency
4. What is DynamoDB ? Junior A. a MySQL- and PostgreSQL-compatible relational database built for the cloud with auto-scaling storage B. a fully managed, serverless key-value and document NoSQL database with single-digit-ms latency C. a multi-region, multi-active replicated DynamoDB table for low-latency global access D. an ordered, time-ordered log of item-level changes in a DynamoDB table
5. Which term means: "a fully managed, serverless key-value and document NoSQL database with single-digit-ms latency"? Junior A. DynamoDB B. DynamoDB DAX C. DynamoDB Global Table D. RDS Proxy
6. Which statement is correct? Junior A. DynamoDB — a multi-region, multi-active replicated DynamoDB table for low-latency global access B. DynamoDB — a fully managed, serverless key-value and document NoSQL database with single-digit-ms latency C. DynamoDB — a Global Secondary Index allowing queries on non-key attributes with its own throughput D. DynamoDB — a managed connection pool that improves database scalability and failover for RDS
7. What is Aurora ? Junior A. a MySQL- and PostgreSQL-compatible relational database built for the cloud with auto-scaling storage B. a fully managed, serverless key-value and document NoSQL database with single-digit-ms latency C. an ordered, time-ordered log of item-level changes in a DynamoDB table D. an on-demand auto-scaling configuration of Aurora that adjusts capacity automatically
8. Which term means: "a MySQL- and PostgreSQL-compatible relational database built for the cloud with auto-scaling storage"? Junior A. RDS Proxy B. DynamoDB GSI C. Read Replica D. Aurora
9. Which statement is correct? Junior A. Aurora — an ordered, time-ordered log of item-level changes in a DynamoDB table B. Aurora — a MySQL- and PostgreSQL-compatible relational database built for the cloud with auto-scaling storage C. Aurora — an on-demand auto-scaling configuration of Aurora that adjusts capacity automatically D. Aurora — a Global Secondary Index allowing queries on non-key attributes with its own throughput
10. What is RDS Multi-AZ ? Mid A. a fully managed, petabyte-scale columnar data warehouse for analytics B. a multi-region, multi-active replicated DynamoDB table for low-latency global access C. a deployment that maintains a synchronous standby replica in another AZ for failover D. a managed connection pool that improves database scalability and failover for RDS
11. Which term means: "a deployment that maintains a synchronous standby replica in another AZ for failover"? Mid A. Read Replica B. DynamoDB Global Table C. RDS Proxy D. RDS Multi-AZ
12. Which statement is correct? Mid A. RDS Multi-AZ — a cross-region Aurora setup with low-latency reads and fast disaster recovery B. RDS Multi-AZ — a managed in-memory cache service supporting Redis and Memcached engines C. RDS Multi-AZ — a deployment that maintains a synchronous standby replica in another AZ for failover D. RDS Multi-AZ — a MySQL- and PostgreSQL-compatible relational database built for the cloud with auto-scaling storage
13. What is Read Replica ? Mid A. a managed connection pool that improves database scalability and failover for RDS B. an ordered, time-ordered log of item-level changes in a DynamoDB table C. a fully managed, petabyte-scale columnar data warehouse for analytics D. an asynchronously replicated copy of a database used to scale read traffic
14. Which term means: "an asynchronously replicated copy of a database used to scale read traffic"? Mid A. Redshift B. ElastiCache C. Aurora Serverless D. Read Replica
15. Which statement is correct? Mid A. Read Replica — an asynchronously replicated copy of a database used to scale read traffic B. Read Replica — a managed in-memory cache service supporting Redis and Memcached engines C. Read Replica — a deployment that maintains a synchronous standby replica in another AZ for failover D. Read Replica — a multi-region, multi-active replicated DynamoDB table for low-latency global access
16. What is DynamoDB GSI ? Mid A. a managed in-memory cache service supporting Redis and Memcached engines B. a Global Secondary Index allowing queries on non-key attributes with its own throughput C. an on-demand auto-scaling configuration of Aurora that adjusts capacity automatically D. a managed connection pool that improves database scalability and failover for RDS
17. Which term means: "a Global Secondary Index allowing queries on non-key attributes with its own throughput"? Mid A. DynamoDB DAX B. DynamoDB C. DynamoDB GSI D. Aurora Serverless
18. Which statement is correct? Mid A. DynamoDB GSI — a fully managed, serverless key-value and document NoSQL database with single-digit-ms latency B. DynamoDB GSI — a managed connection pool that improves database scalability and failover for RDS C. DynamoDB GSI — a Global Secondary Index allowing queries on non-key attributes with its own throughput D. DynamoDB GSI — a deployment that maintains a synchronous standby replica in another AZ for failover
19. What is ElastiCache ? Senior A. a managed in-memory cache service supporting Redis and Memcached engines B. a Global Secondary Index allowing queries on non-key attributes with its own throughput C. Relational Database Service; managed relational databases like PostgreSQL and MySQL D. a fully managed, petabyte-scale columnar data warehouse for analytics
20. Which term means: "a managed in-memory cache service supporting Redis and Memcached engines"? Senior A. DynamoDB Global Table B. ElastiCache C. Read Replica D. RDS
21. Which statement is correct? Senior A. ElastiCache — Relational Database Service; managed relational databases like PostgreSQL and MySQL B. ElastiCache — a managed connection pool that improves database scalability and failover for RDS C. ElastiCache — a managed in-memory cache service supporting Redis and Memcached engines D. ElastiCache — a cross-region Aurora setup with low-latency reads and fast disaster recovery
22. What is DynamoDB Streams ? Senior A. an on-demand auto-scaling configuration of Aurora that adjusts capacity automatically B. an in-memory cache for DynamoDB delivering microsecond read latency C. a managed in-memory cache service supporting Redis and Memcached engines D. an ordered, time-ordered log of item-level changes in a DynamoDB table
23. Which term means: "an ordered, time-ordered log of item-level changes in a DynamoDB table"? Senior A. DynamoDB GSI B. Redshift C. RDS Multi-AZ D. DynamoDB Streams
24. Which statement is correct? Senior A. DynamoDB Streams — a managed connection pool that improves database scalability and failover for RDS B. DynamoDB Streams — a managed in-memory cache service supporting Redis and Memcached engines C. DynamoDB Streams — an in-memory cache for DynamoDB delivering microsecond read latency D. DynamoDB Streams — an ordered, time-ordered log of item-level changes in a DynamoDB table
25. What does aws rds create-db-instance do? Junior A. modifies throughput, indexes, or streams settings on a DynamoDB table B. retrieves items matching a partition key with optional sort-key conditions C. provisions a new managed RDS database instance D. writes a single item to a DynamoDB table
26. Which command will provisions a new managed RDS database instance? Junior A. aws rds create-db-instance B. aws rds describe-db-instances C. aws dynamodb put-item D. aws rds failover-db-cluster
27. Which statement is correct? Junior A. aws rds create-db-instance — creates a manual storage snapshot of an RDS instance B. aws rds create-db-instance — changes settings like instance class or storage on an RDS instance C. aws rds create-db-instance — provisions a new managed RDS database instance D. aws rds create-db-instance — triggers a failover of an Aurora cluster to a replica
28. What does aws rds create-db-snapshot do? Mid A. lists RDS instances and their configuration and status B. creates an on-demand backup of a DynamoDB table C. creates a manual storage snapshot of an RDS instance D. reads a single item from a DynamoDB table by primary key
29. Which command will creates a manual storage snapshot of an RDS instance? Mid A. aws dynamodb query B. aws dynamodb get-item C. aws rds failover-db-cluster D. aws rds create-db-snapshot
30. Which statement is correct? Mid A. aws rds create-db-snapshot — writes a single item to a DynamoDB table B. aws rds create-db-snapshot — triggers a failover of an Aurora cluster to a replica C. aws rds create-db-snapshot — provisions a new managed RDS database instance D. aws rds create-db-snapshot — creates a manual storage snapshot of an RDS instance Showing 30 of 72 AWS · Databases questions — the full set, with answers, explanations and an AI tutor on every question, is inside.