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Home∕Quizzes∕DynamoDB Beginner Quiz: Test Your Knowledge of Amazon's NoSQL Database

DynamoDB Beginner Quiz: Test Your Knowledge of Amazon's NoSQL Database

Welcome to the DynamoDB Beginner Quiz, designed to assess your knowledge of Amazon DynamoDB, a powerful NoSQL database service. Whether you’re a developer exploring DynamoDB for the first time or a beginner looking to solidify your understanding, this quiz will help you gauge your proficiency. The quiz consists of 20 multiple-choice questions, covering key concepts, best practices, and usage scenarios of DynamoDB. Test your knowledge and see how well you fare in the world of DynamoDB!

1. Which AWS service provides seamless integration with DynamoDB for real-time analytics and data visualization?

AWS Lambda
AWS Glue
Amazon Kinesis
Amazon QuickSight

Wrong

2. What is the maximum number of global secondary indexes (GSIs) allowed per DynamoDB table?

5
10
20
Unlimited

Wrong

3. What is DynamoDB?

A relational database service
A key-value store
A document database
A graph database

Wrong

4. What is the purpose of a secondary index in DynamoDB?

To provide an alternative primary key for the table
To improve query performance by enabling additional access patterns
To store large binary data
To enable cross-region replication

Wrong

5. What is the maximum number of items that can be returned in a single query or scan operation in DynamoDB?

100
500
1000
5000

Wrong

6. What is the difference between a global secondary index (GSI) and a local secondary index (LSI)?

GSI is created at the time of table creation, while LSI can be added later
GSI requires additional provisioned throughput, while LSI uses the same throughput as the base table
GSI can project all attributes, while LSI can project only a subset of attributes
GSI can be used for both read and write operations, while LSI is read-only

Wrong

7. Which AWS service provides automatic backup and restore capabilities for DynamoDB?

AWS S3
AWS Lambda
AWS Redshift
AWS Backup

Wrong

8. What is the maximum size of an item in DynamoDB?

10 KB
400 KB
1 MB
10 MB

Wrong

9. What is the difference between DynamoDB On-Demand and Provisioned capacity modes?

On-Demand mode provides automatic scaling, while Provisioned mode requires manual capacity management
On-Demand mode has higher throughput limitations than Provisioned mode
On-Demand mode is free, while Provisioned mode incurs a fixed monthly cost
On-Demand mode supports only read operations, while Provisioned mode supports both read and write operations

Wrong

10. Which feature of DynamoDB allows you to specify fine-grained access control at the item level?

DynamoDB Streams
Amazon Cognito
AWS Identity and Access Management (IAM)
Amazon DynamoDB fine-grained access control

Wrong

11. Which data types are supported by DynamoDB?

String, Number, Boolean, List, Map
String, Integer, Float, Boolean, Null
String, Number, Binary, Boolean, Null
String, Integer, Float, List, Map

Wrong

12. What is the primary key in DynamoDB?

A unique identifier for each item in a table
A group of attributes that uniquely identifies an item
A partition key
A sort key

Wrong

13. In DynamoDB, what is the purpose of a partition key?

To uniquely identify an item within a table
To distribute the data across multiple storage nodes
To provide an alternative primary key for the table
To enable cross-region replication

Wrong

14. What is the purpose of DynamoDB Auto Scaling?

To automatically scale the throughput of a table based on demand
To provide real-time analytics and data visualization
To enable cross-region replication
To cache frequently accessed data and improve read performance

Wrong

15. What is the recommended way to perform efficient pagination in DynamoDB?

Using batch operations
Using scans
Using queries with a limit and last evaluated key
Using conditional writes

Wrong

16. Which AWS service can trigger AWS Lambda functions in response to changes in a DynamoDB table?

Amazon S3
Amazon SQS
AWS Step Functions
Amazon EventBridge

Wrong

17. Which consistency models are supported by DynamoDB?

Strong consistency and eventual consistency
Strong consistency only
Eventual consistency only
Neither strong nor eventual consistency

Wrong

18. What is the purpose of DynamoDB Accelerator (DAX)?

To provide data encryption at rest
To enable cross-region replication
To cache frequently accessed data and improve read performance
To automatically scale the throughput of a table

Wrong

19. What is the purpose of DynamoDB Streams?

To store and retrieve large binary data
To capture a time-ordered sequence of item-level modifications in a table
To enable cross-region replication
To automatically scale the throughput of a table

Wrong

20. What is the minimum provisioned throughput for a DynamoDB table?

1 read capacity unit and 1 write capacity unit
5 read capacity units and 5 write capacity units
10 read capacity units and 10 write capacity units
None, as DynamoDB automatically scales throughput

Wrong

Result:

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