False. It is also possible to trigger a new release on a schedule or manually.
All of the answers are correct.
Numbers 2 and 3 are correct. Both ring-based deployments and canary deployments expose only a limited group of users to the new version of your application. Feature toggles are also used for progressive exposure, but are not used to limit the risks of a deployment but that of a new feature release.
True. Deployment groups are used to perform tasks from a release pipeline not on one agent in the group, but on all agents. Deployment groups are intended to be used to deploy software on the machine that is also running the agent.
One possible advantage is that end-to-end traceability of all steps is retained in Azure DevOps. ...
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