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Worksheets4. Databases
Total questions: 15
Worksheet time: 8mins
What is the primary advantage of using managed AWS databases?
Lower storage costs
Automatic backups and scaling
No need for security measures
Reduced network latency
Which AWS service provides relational database management?
DynamoDB
RDS
ElastiCache
Timestream
Which database engines are supported by AWS RDS?
MySQL, PostgreSQL, SQL Server
Redis, MongoDB, Cassandra
SQLite, Firestore, CouchDB
BigQuery, Hadoop, Presto
What feature does Amazon RDS provide to improve database availability?
Multi-AZ deployment
Elastic Load Balancing
AWS Lambda functions
Auto Scaling Groups
How does Amazon RDS handle database backups?
Manual snapshots only
Automated daily backups and snapshots
Only on-demand backups
Using CloudFront caching
What type of database is Amazon DynamoDB?
Relational
Key-value and document
In-memory only
Time-series
Which AWS database is best for low-latency caching?
DynamoDB
RDS
ElastiCache
QLDB
Amazon DocumentDB is designed for which type of database workloads?
SQL-based queries
NoSQL document storage
Time-series data
Blockchain transactions
Which AWS database is specifically designed for ledger-based applications?
Timestream
QLDB
DynamoDB
RDS
What type of data is Amazon Timestream optimized for?
Caching
Document storage
Time-series data
Large-scale transactions
What is Amazon MemoryDB primarily used for?
Key-value storage
High-performance caching
Blockchain transactions
Relational data storage
What is a key difference between ElastiCache and MemoryDB?
MemoryDB supports durability, while ElastiCache does not
ElastiCache is relational, MemoryDB is NoSQL
MemoryDB is only used for machine learning
ElastiCache provides higher latency
Which database service would you choose for an application requiring ACID-compliant transactions?
ElastiCache
DynamoDB
QLDB
Timestream
What is the main advantage of DynamoDB over RDS?
Fully managed relational storage
Supports high-scale, serverless workloads
Uses SQL queries for data retrieval
Designed for large-scale video processing
Which AWS service provides caching layers for improving database performance?
Timestream
MemoryDB
CloudFront
S3
