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100+ Free GCP Professional Cloud Developer Practice Questions

Pass your Google Cloud Professional Cloud Developer Certification exam on the first try — instant access, no signup required.

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Your GKE cluster needs to automatically add nodes when pods cannot be scheduled due to insufficient resources. Which feature handles this?

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2026 Statistics

Key Facts: GCP Professional Cloud Developer Exam

50-60

Exam Questions

Google Cloud certification page

2 hours

Exam Duration

Google Cloud certification page

70%

Passing Score

Google Cloud certification page

$200

Exam Fee

Google Cloud certification page (2026)

2 years

Certification Validity

Google Cloud certification page

4

Exam Domains

Professional Cloud Developer exam guide

Google Cloud's Professional Cloud Developer exam uses 50-60 multiple choice and multiple select questions in a 2-hour session with a 70% passing threshold. The $200 registration fee covers online or onsite proctored delivery. Four domains are tested: designing cloud-native applications (~33%), building and testing (~26%), deploying (~19%), and integrating with Google Cloud services (~22%). Google recommends 3+ years industry experience including 1+ years on GCP. Certification is valid for 2 years.

Sample GCP Professional Cloud Developer Practice Questions

Try these sample questions to test your GCP Professional Cloud Developer exam readiness. Each question includes a detailed explanation. Start the interactive quiz above for the full 100+ question experience with AI tutoring.

1You are designing a globally available web application that must handle variable traffic loads and automatically scale to zero when idle. Which Google Cloud compute platform is the best fit?
A.Compute Engine with managed instance groups
B.Cloud Run
C.Google Kubernetes Engine with a static node pool
D.App Engine Flexible Environment
Explanation: Cloud Run is a fully managed serverless platform that automatically scales container instances based on incoming requests and scales to zero when there is no traffic. It supports global deployment and is ideal for variable traffic patterns where cost efficiency during idle periods is important.
2You need to choose a database for a new application that requires horizontally scalable, globally consistent relational transactions. Which Google Cloud service should you use?
A.Cloud SQL for PostgreSQL
B.Firestore in Datastore mode
C.Cloud Spanner
D.Cloud Bigtable
Explanation: Cloud Spanner is the only Google Cloud database that provides horizontal scaling with globally consistent relational transactions. It supports standard SQL, strong consistency across regions, and automatic sharding, making it ideal for applications requiring global scale with ACID guarantees.
3Your application needs to process events asynchronously with guaranteed at-least-once delivery. Messages should be retained for replay if needed. Which Google Cloud service is most appropriate?
A.Cloud Tasks
B.Cloud Pub/Sub
C.Cloud Scheduler
D.Eventarc
Explanation: Cloud Pub/Sub provides asynchronous messaging with at-least-once delivery guarantees. It supports message retention for replay (up to 31 days), dead-letter topics for failed deliveries, and can handle millions of messages per second, making it ideal for event-driven architectures.
4You are designing a microservices application where services need to discover each other dynamically. Which approach is recommended on Google Kubernetes Engine?
A.Hardcode IP addresses in each service configuration
B.Use Kubernetes Services with DNS-based service discovery
C.Use Cloud Storage to store a service registry file
D.Manually update /etc/hosts in each container
Explanation: Kubernetes Services provide built-in DNS-based service discovery. When you create a Service, Kubernetes automatically assigns a stable DNS name (e.g., my-service.my-namespace.svc.cluster.local) that other services can use to discover and communicate with each other.
5You are designing an application that needs to cache frequently accessed data to reduce latency and database load. Which Google Cloud service should you use?
A.Cloud Storage
B.Memorystore for Redis
C.Cloud Spanner
D.Persistent Disk
Explanation: Memorystore for Redis is a fully managed in-memory data store that provides sub-millisecond latency for caching use cases. It reduces database load by caching frequently accessed data and supports Redis data structures for session management, leaderboards, and real-time analytics.
6Your team wants to implement the strangler fig pattern to gradually migrate a monolithic application to microservices on Google Cloud. Which approach best supports this pattern?
A.Rewrite the entire application at once before deploying to Cloud Run
B.Use an API gateway or load balancer to route traffic between the monolith and new microservices incrementally
C.Deploy the monolith and all microservices in a single container
D.Shut down the monolith before starting any microservice development
Explanation: The strangler fig pattern uses an API gateway or load balancer to incrementally route traffic from the monolith to new microservices. As each piece of functionality is rebuilt as a microservice, traffic is redirected until the monolith is fully replaced. This minimizes risk during migration.
7You need to implement a circuit breaker pattern in your microservices application running on GKE. Which approach is most effective?
A.Add retry logic with no timeout in each service
B.Use a service mesh like Cloud Service Mesh (Istio) to configure circuit breaking policies
C.Increase the CPU allocation for all services
D.Remove all inter-service communication
Explanation: Cloud Service Mesh (based on Istio) provides built-in circuit breaker functionality through destination rules. It can automatically detect failing services and stop sending traffic to them, preventing cascading failures across the microservices architecture without modifying application code.
8You are designing an application that needs to handle 10,000 concurrent WebSocket connections. Which Google Cloud compute platform best supports this requirement?
A.Cloud Functions (1st gen)
B.App Engine Standard Environment
C.Cloud Run or GKE with appropriate configuration
D.Cloud Scheduler
Explanation: Cloud Run and GKE both support WebSocket connections. Cloud Run supports WebSocket with configurable request timeout (up to 60 minutes), and GKE provides full control over networking configuration for long-lived connections. Both can scale to handle thousands of concurrent connections.
9You are building an application that must be resilient to a single zone failure within a region. Which design principle should you follow?
A.Deploy all resources in a single zone for simplicity
B.Distribute resources across multiple zones within the region and use regional managed instance groups or regional GKE clusters
C.Use only serverless products which are inherently single-zone
D.Deploy a second complete application stack in another cloud provider
Explanation: Distributing resources across multiple zones within a region provides resilience against single zone failures. Regional managed instance groups and regional GKE clusters automatically spread workloads across zones, ensuring continuity if one zone becomes unavailable.
10You want to run a batch job that processes data for 2 hours and can tolerate interruptions. Which Compute Engine VM type provides the lowest cost?
A.Standard VM (n2-standard-4)
B.Spot VM
C.Sole-tenant node
D.Memory-optimized VM (m2-megamem)
Explanation: Spot VMs offer up to 60-91% discount compared to standard on-demand pricing. They are ideal for fault-tolerant batch jobs that can handle interruptions, as Google may preempt the VM when capacity is needed elsewhere. Checkpointing your batch job ensures progress is not lost.

About the GCP Professional Cloud Developer Exam

The Google Cloud Professional Cloud Developer certification validates your ability to build, test, deploy, and integrate scalable cloud-native applications using Google Cloud. The exam covers four domains: designing applications, building and testing, deploying, and integrating with GCP services.

Questions

55 scored questions

Time Limit

2 hours

Passing Score

70%

Exam Fee

$200 (Google Cloud)

GCP Professional Cloud Developer Exam Content Outline

~33%

Designing Highly Scalable, Available, and Reliable Cloud-Native Applications

Compute platform selection, microservices, database/caching choices, event-driven design, and resilience patterns

~26%

Building and Testing Applications

Cloud Build, Artifact Registry, CI/CD pipelines, supply chain security, and testing strategies

~19%

Deploying Applications

Cloud Run, GKE, App Engine, traffic splitting, canary/blue-green deployments, and rollback

~22%

Integrating Applications with Google Cloud Services

Pub/Sub, Firestore, Cloud SQL, Secret Manager, Cloud Trace, Cloud Monitoring, and IAM authentication

How to Pass the GCP Professional Cloud Developer Exam

What You Need to Know

  • Passing score: 70%
  • Exam length: 55 questions
  • Time limit: 2 hours
  • Exam fee: $200

Keys to Passing

  • Complete 500+ practice questions
  • Score 80%+ consistently before scheduling
  • Focus on highest-weighted sections
  • Use our AI tutor for tough concepts

GCP Professional Cloud Developer Study Tips from Top Performers

1The design domain is ~33% of the exam, so prioritize compute selection, microservices patterns, and data storage decisions
2Practice building real CI/CD pipelines with Cloud Build and deploying to Cloud Run and GKE
3Understand deployment strategies: rolling update, canary, blue-green, and when to use each
4Study integration patterns: Pub/Sub for async messaging, Cloud Tasks for task queues, Eventarc for event routing
5Master authentication patterns: Workload Identity on GKE, service accounts on Cloud Run, and Secret Manager for credentials

Frequently Asked Questions

How many questions are on the Professional Cloud Developer exam?

The exam has 50-60 multiple choice and multiple select questions. Scenario-based questions are common and test real-world judgment, not just memorization.

How long is the Professional Cloud Developer exam?

The standard exam is 2 hours (120 minutes). The renewal exam is 1 hour.

What score do I need to pass the Professional Cloud Developer exam?

You need a score of 70% or higher. Google uses a compensatory scoring model, meaning your overall performance across all domains determines the result.

How much does the Professional Cloud Developer exam cost?

The standard exam registration fee is $200 USD plus applicable tax. The renewal exam costs $100 USD.

What experience is recommended for the Professional Cloud Developer exam?

Google recommends 3+ years of industry experience including 1+ years designing and managing solutions using Google Cloud. There are no formal prerequisites.

How should I prepare for the Professional Cloud Developer exam in 2026?

Focus on hands-on labs with Cloud Run, GKE, Cloud Build, and Pub/Sub. The exam emphasizes scenario-based decisions, so practice choosing the right service for specific requirements rather than memorizing service features.