[Solved] Given the following code snippet using DAX client, what will be the output if the item is cached?const params = { TableName: 'Users', Key: { UserId: '123' } }; | DynamoDB

DynamoDB - Cost Optimization and Monitoring

Given the following code snippet using DAX client, what will be the output if the item is cached?

const params = { TableName: 'Users', Key: { UserId: '123' } };
const data = await daxClient.getItem(params).promise();
console.log(data.Item.Name);

AThe user's name from the cache is printed immediately.

BAn error occurs because getItem is not a DAX method.

CThe code waits for a full DynamoDB read without caching.

DThe console prints undefined because data.Item is missing.

Step-by-Step Solution

Solution:

Step 1: Understand DAX caching behavior
If the item is cached, DAX returns it quickly from memory.
Step 2: Analyze code output
console.log prints the cached item's Name property immediately.
Final Answer:
The user's name from the cache is printed immediately. -> Option A
Quick Check:
Cached item returns fast = D [OK]

Quick Trick: Cached items return instantly from DAX memory [OK]

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Given the following code snippet using DAX client, what will be the output if the item is cached?