Table creation with AWS SDK in DynamoDB - Cheat Sheet & Quick Revision

Recall & Review

beginner

What is the primary purpose of creating a table in DynamoDB using the AWS SDK?

To define a structured container where data items are stored with a unique primary key, enabling fast and scalable access.

beginner

Which key attribute must be specified when creating a DynamoDB table?

The primary key, which can be a partition key alone or a combination of partition key and sort key.

intermediate

What does the 'ProvisionedThroughput' setting control in a DynamoDB table?

It controls the read and write capacity units allocated to the table, affecting performance and cost.

intermediate

In AWS SDK for JavaScript v3, which client is used to create a DynamoDB table?

The DynamoDBClient along with the CreateTableCommand is used to create a table.

beginner

Why is it important to wait for the table status to become 'ACTIVE' after creation?

Because the table is not ready to accept read or write operations until it is fully active.

Which attribute is mandatory when creating a DynamoDB table?

A Provisioned throughput

B Secondary index

C Primary key

D Stream specification

A DynamoDB table must have a primary key defined to uniquely identify items.

What does the 'AttributeDefinitions' parameter specify in table creation?

A The data types of key attributes

B The table's read/write capacity

C The table's billing mode

D The table's encryption settings

AttributeDefinitions define the names and data types of attributes used as keys.

Which AWS SDK command is used to create a DynamoDB table in JavaScript v3?

A CreateTableCommand

B PutItemCommand

C UpdateTableCommand

D DeleteTableCommand

CreateTableCommand is the command to create a new DynamoDB table.

What happens if you try to write data before the table status is 'ACTIVE'?

A The write will succeed but data may be lost

B The write operation will fail

C The data will be queued automatically

D The table will auto-activate

Writes are rejected until the table is fully active.

Which billing mode allows you to pay only for the read/write you use without provisioning capacity?

A Provisioned

B Free tier

C Reserved

D On-demand

On-demand billing mode charges based on actual usage without capacity settings.

Explain the key steps to create a DynamoDB table using the AWS SDK.

Think about what information the table needs and how the SDK command is structured.

Describe why the primary key is essential in DynamoDB table creation and what types it can have.

Consider how you find a single item in a big collection.