Google Cloud Certified MCQ 2

Question 1

A company needs to migrate a 50 TB on-premises Oracle database to Google Cloud with minimal downtime. Which approach is most appropriate?

Accepted Answer

Use Database Migration Service with continuous replication and cutover

Answer

Use gsutil to copy database files directly to Cloud Storage

Answer

Export the database to CSV and import into BigQuery

Answer

Spin up a Compute Engine VM and restore from a backup

Question 2

Your application on GKE experiences intermittent OOM kills on pods during traffic spikes. What is the most effective long-term fix?

Accepted Answer

Set appropriate resource requests and limits on pods and enable Vertical Pod Autoscaler

Answer

Increase node machine type to n2-highmem-64

Answer

Disable memory limits so containers can use available node memory freely

Answer

Add more nodes manually before peak traffic periods

Question 3

A retail company wants real-time inventory updates visible globally with strong consistency. Which Cloud Spanner feature addresses this requirement?

Accepted Answer

Multi-region instance with TrueTime-based external consistency

Answer

Regional instance with read replicas

Answer

Cloud SQL cross-region failover replica

Answer

Bigtable with global replication

Question 4

Which IAM approach best follows the principle of least privilege for a Cloud Run service that only needs to read from one Cloud Storage bucket?

Accepted Answer

Create a custom role with storage.objects.get and storage.objects.list on that specific bucket

Answer

Grant the service account roles/storage.admin on the project

Answer

Use the default Compute Engine service account with Editor role

Answer

Grant roles/storage.objectViewer at the project level

Question 5

A startup needs an event-driven architecture where multiple downstream services react to new user registrations. What is the recommended pattern on Google Cloud?

Accepted Answer

Publish to Pub/Sub topic with each service having its own subscription

Answer

Write events directly to a shared Cloud SQL table that each service polls

Answer

Use Cloud Scheduler to trigger each service on a fixed interval

Answer

Send HTTP webhooks from the registration service to each consumer

Question 6

A team wants to enforce that all Compute Engine VMs in their organization use only approved OS images. What is the correct control?

Accepted Answer

Use an Organization Policy constraint to restrict allowed images

Answer

Add a firewall rule blocking unapproved image traffic

Answer

Audit images weekly with a Cloud Function script

Answer

Require manual approval for every VM creation request

Question 7

You need to analyze 10 years of clickstream logs (petabytes) with ad-hoc SQL queries. Cost efficiency is the top priority. What storage and query approach should you use?

Accepted Answer

Store in Cloud Storage as Parquet, query with BigQuery external tables

Answer

Store in Cloud SQL and query directly

Answer

Store in Bigtable and use the HBase API

Answer

Store in Firestore and use collection group queries

Google Cloud Certified MCQ 2

What Practice Test Geeks adds beyond an AI chat for Google Cloud Certified - Professional Cloud Architect

Sources & references