ExpertEasy1 markMultiple Choice
AZ-305 · Question 41 · Domain 4.1: Design a Compute Solution
Your development team is deploying a new version of a mission-critical web application hosted on Azure App Service.
They require a deployment strategy that allows them to test the new version in the live production environment with 10% of real user traffic. If the new version performs well, they want to seamlessly switch 100% of traffic to it with zero downtime.
Which Azure App Service feature should you use?
Your development team is deploying a new version of a mission-critical web application hosted on Azure App Service.
They require a deployment strategy that allows them to test the new version in the live production environment with 10% of real user traffic. If the new version performs well, they want to seamlessly switch 100% of traffic to it with zero downtime.
Which Azure App Service feature should you use?
Answer options:
A.
Azure Traffic Manager
B.
Deployment Slots
C.
App Service Backup and Restore
D.
Azure Front Door
How to approach this question
Keywords: 'test in live production', '10% of traffic', 'zero downtime swap'. This describes App Service Deployment Slots.
Full Answer
B.Deployment Slots✓ Correct
Deployment Slots
Azure App Service Deployment Slots are live apps with their own hostnames. You can deploy a new version to a staging slot, use the 'Traffic Routing' feature to send 10% of production traffic to it for A/B testing, and then perform a 'Swap'. The swap changes the IP addresses instantly, resulting in zero downtime.
Common mistakes
Thinking you need a complex load balancer like Front Door or Traffic Manager for this. App Service has this capability built-in via slots.
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