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Which of the following best describes how IAM policies protect DynamoDB data?

easy🧠 Conceptual Q2 of 15
DynamoDB - Security and Access Control
Which of the following best describes how IAM policies protect DynamoDB data?
ABy defining permissions that restrict unauthorized users from accessing tables
BBy automatically deleting old data to save space
CBy compressing data to reduce storage costs
DBy replicating data across regions
Step-by-Step Solution
Solution:
  1. Step 1: Identify the role of IAM policies

    IAM policies specify who can do what with AWS resources, including DynamoDB tables.
  2. Step 2: Match the description to data protection

    Restricting unauthorized access is how IAM policies protect data.
  3. Final Answer:

    By defining permissions that restrict unauthorized users from accessing tables -> Option A
  4. Quick Check:

    IAM policies restrict access = C [OK]
Quick Trick: IAM policies restrict unauthorized access to data [OK]
Common Mistakes:
MISTAKES
  • Confusing IAM policies with data lifecycle management
  • Thinking IAM policies handle data compression
  • Assuming IAM policies replicate data

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