AWS - DynamoDB
Why does DynamoDB require a primary key when creating a table?
Why does DynamoDB require a primary key when creating a table?
hard📝 Conceptual Q10 of 15
Step-by-Step Solution
Solution:
Step 1: Understand primary key purpose
The primary key uniquely identifies each item, ensuring no duplicates.Step 2: Eliminate unrelated options
Billing mode, auto scaling, and encryption are unrelated to primary key function.Final Answer:
To uniquely identify each item in the table -> Option DQuick Check:
Primary key = unique item ID [OK]
Quick Trick: Primary key uniquely identifies items [OK]
Common Mistakes:
- Confusing key with billing or encryption
- Assuming key enables auto scaling
- Ignoring uniqueness requirement
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