DynamoDB - Access Patterns and Query Optimization
Which of the following partition key formats correctly implements write sharding for a DynamoDB table storing product reviews?
Which of the following partition key formats correctly implements write sharding for a DynamoDB table storing product reviews?
easy📝 Syntax Q3 of 15
Step-by-Step Solution
Solution:
Step 1: Identify shard placement
Shard ID should be appended to the partition key to distribute writes.Step 2: Check key format
review##shard includes product ID and shard ID, enabling sharding per product. Final Answer:
review##shard -> Option AQuick Check:
Shard ID appended after main key [OK]
Quick Trick: Shard ID appended to partition key for distribution [OK]
Common Mistakes:
MISTAKES- Placing shard ID before main key
- Omitting product ID in key
- Using shard ID alone as partition key
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