Deployment slots for staging in Azure - Cheat Sheet & Quick Revision

Recall & Review

beginner

What is a deployment slot in Azure App Service?

A deployment slot is a live app environment with its own hostname. It allows you to deploy and test your app in a staging environment before swapping it with the production slot.

beginner

Why use deployment slots for staging?

Deployment slots let you test new app versions in a real environment without affecting users. You can swap slots to release updates with zero downtime.

intermediate

What happens during a slot swap in Azure App Service?

During a swap, the content and configuration of the staging slot exchange with the production slot. This makes the staging version live and the old production version moves to staging.

intermediate

Can deployment slots have different configurations?

Yes, deployment slots can have slot-specific settings like connection strings or app settings that do not swap with the content. This helps keep staging and production environments separate.

intermediate

What is a best practice when using deployment slots for staging?

Test your app thoroughly in the staging slot before swapping. Also, use slot-specific settings for sensitive data and monitor the app after swap to catch issues early.

What is the main benefit of using deployment slots for staging in Azure?

A Zero downtime deployment

B Lower hosting costs

C Faster app development

D Automatic scaling

Deployment slots allow you to swap staging and production environments without downtime, ensuring users experience no interruption.

Which of the following is true about slot-specific settings?

A They swap along with the app content

B They are deleted after swap

C They cannot be configured separately

D They remain unique to each slot during swap

Slot-specific settings stay with their slot and do not swap, allowing different configurations for staging and production.

What happens to the production slot when you swap it with a staging slot?

A It is deleted

B It becomes the new staging slot

C It remains unchanged

D It restarts automatically

The production slot and staging slot exchange their content and configurations, so production becomes staging and vice versa.

Which scenario best describes when to use deployment slots?

A To test app updates before releasing to users

B To reduce app hosting costs

C To store backups of the app

D To increase app storage space

Deployment slots provide a staging environment to test updates safely before making them live.

Can deployment slots be used for production traffic?

A Only during swap operations

B No, only production slot can serve traffic

C Yes, each slot has its own URL and can serve traffic

D Only if manually enabled

Each deployment slot has its own hostname and can serve traffic independently.

Explain how deployment slots help achieve zero downtime during app updates.

Think about how swapping slots affects live users.

Describe the difference between slot-specific settings and swapped content in deployment slots.

Consider what changes and what stays the same after a swap.