A multi-tenant event system writes and reads data in DynamoDB. One tenant generates most of the traffic, causing throttling on a single partition key value, and the dashboards repeatedly read the most recent items for that tenant. Which two changes should the team make to improve performance? Select two.

Switch the table to on-demand capacity mode so DynamoDB automatically removes partition limits.

On-demand mode simplifies capacity management, but it does not remove the physical partition throughput limits of a hot key.

Use a larger sort key attribute to increase the maximum write throughput for the tenant.

Sort key size does not change partition-level throughput, so it does not solve the hot partition bottleneck.

Move the table to a single larger provisioned throughput setting and keep the same key design.

Raising table capacity without changing the access pattern still leaves one partition overloaded by the same tenant key.

What does this SAA-C03 question test?

Static NAT maps one inside address to one outside address.

What is the correct answer to this question?

The correct answer is: Shard the hot tenant’s writes across multiple partition key values so traffic is spread across partitions. — The core problem is a hot partition created by one tenant, so the write pattern must be spread across multiple partition key values. That is why write sharding is the first fix. Because the dashboards repeatedly read the same recent data, DAX is also helpful: it serves frequent read traffic from cache and reduces repeated load on DynamoDB. Together, these changes address both the write hotspot and the repetitive read workload. On-demand capacity and larger provisioned settings can help with overall capacity planning, but they do not eliminate the partition-level hotspot created by a single key. Changing the sort key does not redistribute traffic. The scenario specifically shows both a hot write path and repeated reads, so sharding and read caching are the most effective combination.

What should I do if I get this SAA-C03 question wrong?

Then try more questions from the same exam bank and focus on understanding why the wrong options are tempting.