An ice-road convoy tracker starts receiving HTTP 429 responses from Cosmos DB after a teammate replaced point reads with broad SELECT * scans. What should the developer recognize as Cosmos throughput currency, and what should they prefer?
Select an answer to reveal the explanation.
Short Explanation
Cosmos charges in request units—think tokens at the arcade. Point reads are a cheap game; SELECT * scans burn the roll and earn you 429s when the key was already in your pocket.
Full Explanation
Cosmos DB meters operations in request units. Inefficient queries consume more RUs and can produce 429 throttling when provisioned throughput is exceeded. Developers should prefer point operations when id and partition key are known. VM counts, Files migration, and Front Door settings are not the Cosmos RU throughput model.