Modern product delivery relies on feature flags and phased rollouts. Enable a feature flag, roll out to users, and dark-launch a feature are the collocations that product engineers and DevOps professionals use every day. These exercises will sharpen your precision in release management communication.
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1 / 5
The team decided to ___ for 10% of users and monitor error rates before a wider release.
Enable a feature flag is the standard product engineering collocation. Feature flagging tools (LaunchDarkly, Unleash, etc.) use 'enable' and 'disable' as the primary verbs in their documentation and UI. 'Turn on' is informal; 'activate' is less common in this context.
2 / 5
After detecting increased latency, the on-call engineer chose to ___ immediately.
Disable the flag is the correct professional collocation, pairing directly with 'enable'. Feature flag platforms use 'disable' as the standard toggle-off action. 'Turn off' and 'switch off' are informal alternatives not typically seen in technical runbooks.
3 / 5
Following a successful canary test, the product team planned to ___ over the next two weeks.
Roll out to users is the standard product and DevOps collocation for a phased or gradual release. 'Roll out' implies a controlled, incremental approach — distinct from a single 'release'. It collocates naturally with 'to users', 'to production', and 'gradually'.
4 / 5
When the payment service started throwing 500 errors, the incident commander decided to ___ immediately.
Roll back the deployment is the canonical DevOps collocation. 'Roll back' is the standard term for returning to a previous stable state after a problematic release. While 'revert' is also used (especially with Git), 'roll back' is the professional term for deployment operations.
5 / 5
To avoid user disruption, the team planned to ___ behind a flag before the public announcement.
Dark-launch a feature is the professional product engineering collocation for deploying code to production while keeping it hidden from users. 'Dark launch' is a specific technique used to test infrastructure under real load without user exposure — it is the established industry term.