Quiz

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4 questions in Client Feature Flags.

Quiz

A streaming platform delivers feature flags to clients. What happens when the flag service is slow or unreachable?

A web application evaluates feature flags in the browser. A flag is turned on for 10% of users and the new code throws during application start-up, so those users see a blank page. Turning the flag off does not help them. Why not, and what is the structural fix?

How do client-side feature flags differ from server-side ones, and what breaks if you ignore the difference?

You turn off a feature flag evaluated in the browser. Some users keep seeing the old behaviour for hours. Why, and what should the design do about it?