SnowPro Specialty: Native Apps free question 10 / 10 · Domain 4: Manage Snowflake Native Applications
A developer plans to create an app's service inside the versioned schema so that each app version gets its own copy, as with procedures. What does the section on updating an app with containers say?
- Services must be in versioned schemas so that upgrades can roll back
- Services in versioned schemas upgrade at the same time as the app
- Services are supported in versioned schemas if the app has no patches
- Services are not supported there; they have their own version management
Show the answer and explanation
Answer: D
Why this is correct
The section "Update an app with containers" says an upgrade of an app with containers can create or modify app objects by running the setup script and start or upgrade services with CREATE SERVICE or ALTER SERVICE. Services aren't supported in versioned schemas because they have their own version management. Services that are created or modified by the setup script use a service specification file for the new version, which is how a service follows the app version without a versioned schema.
Why the other options are wrong
"Services in versioned schemas upgrade at the same time as the app" … The section says services are not supported in versioned schemas at all, so they cannot be upgraded as part of one.
"Services must be in versioned schemas so that upgrades can roll back" … The section says the opposite: services aren't supported in versioned schemas.
"Services are supported in versioned schemas if the app has no patches" … The section does not make an exception based on patches.
Wait before you depend
Because services follow their own version management, the design should decide early how each app version points its services at the right specification.