A user is adding a new component to the Backstage catalog. They include the annotation 'github.com/project-slug: my-org/my-repo' in the descriptor file. When they try to register the entity, Backstage rejects it with a validation error. What is the most likely cause?

The annotation key is not recognized by Backstage.

The annotation value contains a forward slash, which is not allowed.

The annotation value must be a URL, not a slug.

The annotation must be placed under 'metadata.annotations' in the descriptor.

Which YAML snippet correctly adds an annotation to a Backstage catalog entity?

annotations: github.com/project-slug: my-org/my-repo

spec: annotations: github.com/project-slug: my-org/my-repo

metadata: github.com/project-slug: my-org/my-repo

metadata: annotations: github.com/project-slug: my-org/my-repo

In the Backstage catalog, what is the primary purpose of annotations on an entity?

To specify the entity's access control list and define which users can view it

To define the entity's display name and description for the catalog UI

To attach additional metadata to an entity that can be consumed by Backstage features and plugins

To replace the entity's spec section with custom fields

A company wants to use Backstage to track the ownership of their services. They want to display the owning team's name and contact email on each entity's overview page. What is the best way to store this information?

Store the information in the entity's 'metadata.description' field.

Use the 'spec.owner' field in the entity descriptor.

Add custom annotations for team name and email.

Use the 'metadata.labels' field.

Certified Backstage Associate (CBA)

Domain 3Objective 3

Using Annotations CBA Practice Questions (Page 3)

Part of the Backstage Catalog domain, which accounts for 22% of the CBA exam. Linux Foundation does not publish an official question count, but from its 90-minute exam (~35–60 total, ~8–13 in this domain), expect 1–2 from this objective — we provide 22 practice questions to prepare you well beyond it. (estimate)

22questions here

5free pages

6concepts

22%of the exam

Questions 11–15

11foundation · easy
Which Backstage feature directly consumes the `backstage.io/techdocs-ref` annotation?
Select an answer first
12application · easy
A user is adding a new component to the Backstage catalog. They include the annotation 'github.com/project-slug: my-org/my-repo' in the descriptor file. When they try to register the entity, Backstage rejects it with a validation error. What is the most likely cause?
Select an answer first
13foundation · easy
Which YAML snippet correctly adds an annotation to a Backstage catalog entity?
Select an answer first
14foundation · easy
In the Backstage catalog, what is the primary purpose of annotations on an entity?
Select an answer first
15application · easy
A company wants to use Backstage to track the ownership of their services. They want to display the owning team's name and contact email on each entity's overview page. What is the best way to store this information?
Select an answer first

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