[Solved] Given the following code snippet using Boto3 resource: import boto3 dynamodb = boto3.resource('dynamodb') table = dynamodb.Table('Users') response = table.get_item(Key={'UserId':... | DynamoDB

DynamoDB - with AWS SDK

Given the following code snippet using Boto3 resource:

import boto3
dynamodb = boto3.resource('dynamodb')
table = dynamodb.Table('Users')
response = table.get_item(Key={'UserId': '123'})
print(response['Item']['Name'])

What will this code print if the item exists with Name 'Alice'?

A123

BNone

CKeyError

DAlice

Step-by-Step Solution

Solution:

Step 1: Understand the get_item call on resource Table
The get_item method returns a dictionary with an 'Item' key containing the requested item if it exists.
Step 2: Access the 'Name' attribute from the returned item
The code prints response['Item']['Name'], which will be 'Alice' if the item exists with that attribute.
Final Answer:
Alice -> Option D
Quick Check:
response['Item']['Name'] = Alice [OK]

Quick Trick: get_item returns dict with 'Item' key holding data [OK]

Common Mistakes:

MISTAKES

Assuming response is just the item dict
Forgetting to check 'Item' key
Confusing client and resource response formats

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More DynamoDB Quizzes

Given the following code snippet using Boto3 resource:

Step 1: Understand the get_item call on resource Table

Step 2: Access the 'Name' attribute from the returned item

Final Answer:

Quick Check:

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