You have a high-traffic DynamoDB table with a partition key 'DeviceId'. To prevent hot partitions, you decide to add a suffix. Which suffix strategy is best?

hard🚀 Application Q8 of 15

DynamoDB - Access Patterns and Query Optimization

AAdd the same timestamp suffix to all 'DeviceId's

BAdd a fixed string suffix like '#001' to all 'DeviceId's

CAdd a hash of the current minute to 'DeviceId'

DAdd a sequential number suffix starting at 1

Step-by-Step Solution

Solution:

Step 1: Evaluate suffix randomness
A hash of the current minute adds variability and spreads writes across partitions.
Step 2: Reject fixed or sequential suffixes
Fixed or sequential suffixes cause clustering and hot partitions.
Final Answer:
Add a hash of the current minute to 'DeviceId' -> Option C
Quick Check:
Randomized suffixes prevent hot partitions [OK]

Quick Trick: Use time-based hash suffix for even distribution [OK]

Common Mistakes:

MISTAKES

Using fixed or sequential suffixes
Adding identical suffix to all keys
Ignoring suffix randomness

Master "Access Patterns and Query Optimization" in DynamoDB

9 interactive learning modes - each teaches the same concept differently

Learn Why Deep Visual Try Challenge Project Recall Time

Want More Practice?

15+ quiz questions · All difficulty levels · Free

Free Signup - Practice All Questions

More DynamoDB Quizzes

You have a high-traffic DynamoDB table with a partition key 'DeviceId'. To prevent hot partitions, you decide to add a suffix. Which suffix strategy is best?

Step 1: Evaluate suffix randomness

Step 2: Reject fixed or sequential suffixes

Final Answer:

Quick Check:

Want More Practice?