4. Databases

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