In the practical guidance of microservices, () microservices can be published in gray scale.

Question

Options

• Aweather

• A
  100% (22)

Explanation

Option A (weather) is correct because a weather microservice is a stateless, read-only service that retrieves and displays information without modifying critical user data or triggering irreversible operations. This makes it a low-risk candidate for gray scale (canary) deployment, where a new version is gradually rolled out to a small percentage of users before full release. If the new version behaves unexpectedly, the impact is limited and easily rolled back without data loss or serious consequences to end users.

No other answer choices are provided in this question, so distractor analysis is not applicable here.

Memory tip: Think of gray scale deployment as a "low stakes test run." Services that only read and display non-critical data, like weather information, are ideal candidates because a failure affects convenience, not core business logic or user data integrity.

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