Resource naming and labels in GCP - Practice Problems & Coding Challenges

Challenge - 5 Problems

🧠 Conceptual

intermediate

Understanding GCP resource naming constraints

Which of the following resource names are valid for a Google Cloud Storage bucket? (Select all that apply)

A my_bucket_2024

B my-bucket-2024

C my.bucket.2024

D MyBucket2024

💡 Hint

Bucket names must contain only lowercase letters, numbers, dashes (-), and dots (.). No uppercase letters or underscores.

Google Cloud Storage bucket names must be globally unique, 3-63 characters long, lowercase, and can include letters, numbers, dashes, and dots. Underscores are not allowed. Options B and C follow these rules. Option A contains underscores, which are invalid. Option D has uppercase letters.

❓ Configuration

intermediate

Applying labels to GCP Compute Engine instances

You want to add labels to a Compute Engine instance to identify its environment and owner. Which of the following gcloud commands correctly applies labels env=prod and owner=alice to an instance named web-server-1?

A gcloud compute instances set-labels web-server-1 --labels=env=prod,owner=alice

B gcloud compute instances add-labels web-server-1 --labels=env=prod,owner=alice

C gcloud compute instances update web-server-1 --labels env=prod owner=alice

D gcloud compute instances set-label web-server-1 env=prod owner=alice

💡 Hint

Use the set-labels command with the --labels flag and comma-separated key=value pairs.

The correct command to apply labels is gcloud compute instances set-labels with the --labels flag. Option A uses the correct syntax.

❓ Architecture

advanced

Designing label strategy for cost tracking

Your company wants to track cloud costs by project, team, and environment using labels. Which label key set follows GCP best practices for naming and helps avoid conflicts?

A cost_project, cost_team, cost_environment

B costing/project, costing/team, costing/environment

C gcp-project, gcp-team, gcp-environment

D project, team, environment

💡 Hint

Label keys should be simple, lowercase, and avoid special characters like slashes.

GCP recommends label keys to be lowercase, start with a letter, and contain only letters, numbers, underscores, and dashes. Option D uses simple keys without special characters or prefixes, which is best practice.

❓ security

advanced

Impact of labels on IAM policy enforcement

You want to restrict access to resources based on labels using IAM conditions. Which statement about using labels in IAM conditions is correct?

A Labels can be used in IAM conditions for any resource, regardless of label support.

B Labels can be used in IAM conditions only if the resource supports labels and the condition uses <code>resource.labels</code> attribute.

C IAM conditions cannot use labels; they only support resource names and types.

D Labels used in IAM conditions must be encrypted before use.

💡 Hint

Check if the resource supports labels and use the correct attribute in the condition.

IAM conditions can use labels only if the resource supports them, and the condition must reference resource.labels. Option B correctly states this.

❓ service_behavior

expert

Effect of label changes on billing reports

You update labels on a Google Cloud project resource. How soon will the updated labels appear in the billing reports for cost tracking?

A After 24 to 48 hours, due to billing data processing delays.

B Within a few minutes, as billing data updates in real-time.

C Immediately after the label update is saved.

D Only after the next monthly billing cycle.

💡 Hint

Billing data processing can take time before reflecting label changes.

Billing data and reports typically update with a delay of 24 to 48 hours after label changes due to batch processing. Option A is correct.