Buckets and objects concept in GCP - Practice Problems & Coding Challenges

Challenge - 5 Problems

🧠 Conceptual

intermediate

Understanding Bucket Naming Rules

Which of the following bucket names is valid according to Google Cloud Storage naming rules?

A my.bucket.name

B MyBucketName

C my_bucket_name_123

D my-bucket-name

💡 Hint

Bucket names must be globally unique, lowercase, and follow DNS naming conventions.

Google Cloud Storage bucket names must be lowercase, can include dashes and dots, but cannot have underscores or uppercase letters. They must also follow DNS naming rules.

❓ service_behavior

intermediate

Object Versioning Behavior

If object versioning is enabled on a bucket, what happens when you upload a new object with the same name as an existing object?

A The bucket automatically deletes the old object before saving the new one.

B The new object is rejected with an error because the name already exists.

C The new object is saved as a new version, and the old version is retained.

D The new object overwrites the old one and the old version is lost.

💡 Hint

Think about how versioning helps keep old copies.

When versioning is enabled, uploading an object with the same name creates a new version. The old version remains accessible.

❓ Architecture

advanced

Designing for Data Residency Compliance

You need to store sensitive data in Google Cloud Storage and ensure it never leaves the European Union. Which bucket configuration meets this requirement?

A Create a bucket in a multi-region location in the US.

B Create a bucket in a region located in Europe.

C Create a bucket in a dual-region with one region in Europe and one in Asia.

D Create a bucket in a multi-region location in Asia.

💡 Hint

Data residency depends on the physical location of the bucket.

Choosing a bucket in a European region ensures data stays within EU boundaries, meeting residency requirements.

❓ security

advanced

Bucket Access Control Best Practice

Which of the following is the safest way to grant a user read access to objects in a bucket?

A Grant the user the 'Storage Object Viewer' role on the bucket.

B Make the bucket publicly readable.

C Grant the user 'Storage Admin' role on the project.

D Share the bucket's URL with the user.

💡 Hint

Least privilege principle is key for security.

Granting the 'Storage Object Viewer' role on the bucket gives read access only, following least privilege. Public access or admin roles are too broad.

✅ Best Practice

expert

Optimizing Object Lifecycle Management

You want to automatically delete objects older than 365 days and archive objects older than 180 days in Google Cloud Storage. Which lifecycle rule configuration achieves this?

A Set a lifecycle rule to delete objects with age > 365 days and another to set storage class to ARCHIVE for age > 180 days.

B Set a lifecycle rule to delete objects with age > 180 days and another to set storage class to ARCHIVE for age > 365 days.

C Set a single lifecycle rule to delete objects with age > 365 days only.

D Set a lifecycle rule to archive objects with age > 365 days and delete objects with age > 180 days.

💡 Hint

Think about the order of archiving before deletion.

Objects should be archived first at 180 days, then deleted after 365 days. The rules must reflect this order.