DynamoDB Quiz

Which two data models does DynamoDB support? (Select two)

• Relational

• Document

• Key-Value

• Object-Oriented

DynamoDB is a fully managed database service provided by AWS.

• TRUE

• FALSE

In DynamoDB, you can define relationships between tables in the same way as in relational databases.

• TRUE

• FALSE

DynamoDB ensures high availability and fault tolerance for data storage.

• TRUE

• FALSE

By default, DynamoDB utilizes fixed-length data types for all attributes.

• TRUE

• FALSE

Writing data to DynamoDB follows an eventually consistent model, meaning it might take time for all replicas to reflect the updates.

• TRUE

• FALSE

In DynamoDB, data is organized into:

• Rows and columns

• Tables and items

• Schemas and objects

• Instances and databases

One significant advantage of DynamoDB over RDS is:

• Lower cost in every scenario.

• Necessity of a predefined database schema.

• Seamless automatic scaling.

• Better suited for intricate data relationships.

Which consistency model in DynamoDB ensures immediate access to the latest data upon read?

• Always Consistent Reads

• Eventually Consistent Reads (default)

• Strongly Consistent Writes

• Transactional Consistency

Which of these is NOT a category of NoSQL databases?

• Key-Value

• Relational

• Document-Based

• Graph-Based