AWS CLI for DynamoDB - Cheat Sheet & Quick Revision

Recall & Review

beginner

What is AWS CLI in the context of DynamoDB?

AWS CLI is a tool that lets you control DynamoDB using simple commands typed in a terminal or command prompt, without needing to use the AWS web console.

beginner

How do you create a new DynamoDB table using AWS CLI?

You use the command aws dynamodb create-table with parameters like table name, key schema, attribute definitions, and provisioned throughput.

beginner

What does the put-item command do in AWS CLI for DynamoDB?

It adds a new item or replaces an existing item in a DynamoDB table. You specify the table name and the item data in JSON format.

beginner

How can you retrieve an item from a DynamoDB table using AWS CLI?

Use the get-item command with the table name and the key of the item you want to get.

intermediate

What is the purpose of the scan command in AWS CLI for DynamoDB?

The scan command reads every item in a table and returns all data, which is useful for small tables or when you need all items.

Which AWS CLI command creates a new DynamoDB table?

A aws dynamodb put-item

B aws dynamodb create-table

C aws dynamodb get-item

D aws dynamodb scan

The command aws dynamodb create-table is used to create a new table.

What parameter is required to specify the primary key when creating a DynamoDB table with AWS CLI?

A ProvisionedThroughput

B Item

C TableName

D KeySchema

The KeySchema parameter defines the primary key attributes for the table.

Which command would you use to add or replace an item in a DynamoDB table?

A aws dynamodb put-item

B aws dynamodb scan

C aws dynamodb delete-item

D aws dynamodb get-item

The put-item command adds or replaces an item in the table.

If you want to read all items from a DynamoDB table, which AWS CLI command should you use?

A aws dynamodb get-item

B aws dynamodb query

C aws dynamodb scan

D aws dynamodb put-item

The scan command reads all items in the table.

What format is used to specify item data in AWS CLI commands for DynamoDB?

A JSON

B YAML

C XML

D CSV

Item data is specified in JSON format in AWS CLI commands.

Explain how to create a DynamoDB table using AWS CLI, including key parameters you must provide.

Think about the table name, primary key, and capacity settings.

Describe the difference between the AWS CLI commands get-item and scan when working with DynamoDB.

Consider how many items each command returns and when to use each.