[Solved] You wrote this code to use DAX but get a runtime error:const daxClient = new AWS.DAX();... const result = await daxClient.getItem(params).promise();What is the most likely cause of the error? | DynamoDB

DynamoDB - Cost Optimization and Monitoring

You wrote this code to use DAX but get a runtime error:

const daxClient = new AWS.DAX();
const params = { TableName: 'Products', Key: { ProductId: '001' } };
const result = await daxClient.getItem(params).promise();

What is the most likely cause of the error?

AThe params object is missing the required attribute names.

BThe getItem method does not exist on the DAX client.

CYou forgot to specify the DAX cluster endpoints when creating the client.

DYou need to use AWS.DynamoDB.DocumentClient instead of AWS.DAX.

Step-by-Step Solution

Solution:

Step 1: Check DAX client initialization
Creating AWS.DAX without endpoints causes connection errors.
Step 2: Identify error cause
Missing cluster endpoints is the common cause of runtime errors here.
Final Answer:
You forgot to specify the DAX cluster endpoints when creating the client. -> Option C
Quick Check:
DAX client needs endpoints = A [OK]

Quick Trick: Always provide cluster endpoints when creating DAX client [OK]

Common Mistakes:

MISTAKES

Assuming getItem is invalid for DAX
Using wrong client type for DAX
Missing required keys in params (less common here)

Master "Cost Optimization and Monitoring" in DynamoDB

9 interactive learning modes - each teaches the same concept differently

Learn Why Deep Visual Try Challenge Project Recall Time

More DynamoDB Quizzes

You wrote this code to use DAX but get a runtime error:

Step 1: Check DAX client initialization

Step 2: Identify error cause

Final Answer:

Quick Check:

Want More Practice?