Home » Java » Cloud and Scalability

Cloud and Scalability MCQs

  1. In AWS, which service is primarily used for object storage?
    a) EC2
    b) S3
    c) RDS
    d) Lambda
    View Answer

    Correct answer: B — S3

  2. In GCP, which service provides scalable NoSQL database?
    a) Cloud SQL
    b) BigQuery
    c) Firestore
    d) Cloud Spanner
    View Answer

    Correct answer: C — Firestore

  3. In Azure, which service is used for serverless computing?
    a) Azure Functions
    b) Azure VM
    c) Azure Blob Storage
    d) Azure SQL
    View Answer

    Correct answer: A — Azure Functions

  4. What will be printed?
    1 System.out.println("Eduinq Cloud".toUpperCase());
    a) Eduinq Cloud
    b) EDUINQ CLOUD
    c) Compilation error
    d) Runtime exception
    View Answer

    Correct answer: B — EDUINQ CLOUD

  5. In AWS, which service is used for load balancing?
    a) CloudFront
    b) ELB
    c) S3
    d) DynamoDB
    View Answer

    Correct answer: B — ELB

  6. In Kubernetes, which object ensures pods restart if they fail?
    a) ConfigMap
    b) ReplicaSet
    c) Service
    d) Secret
    View Answer

    Correct answer: B — ReplicaSet

  7. Which of the following is true about GCP BigQuery?
    a) Serverless data warehouse
    b) Supports SQL queries
    c) Handles petabyte scale data
    d) All of the above
    View Answer

    Correct answer: D — All of the above

  8. In Azure, which service provides API management?
    a) Azure API Management
    b) Azure Functions
    c) Azure Blob Storage
    d) Azure Monitor
    View Answer

    Correct answer: A — Azure API Management

  9. Which of the following is true about AWS Lambda?
    a) Event driven compute service
    b) Automatically scales
    c) Pay only for execution time
    d) All of the above
    View Answer

    Correct answer: D — All of the above

  10. What will be printed?
    1 System.out.println("Scale".endsWith("e"));
    a) true
    b) false
    c) Compilation error
    d) Runtime exception
    View Answer

    Correct answer: A — true

  11. In Kubernetes, which object exposes pods to external traffic?
    a) Deployment
    b) Service
    c) ConfigMap
    d) ReplicaSet
    View Answer

    Correct answer: B — Service

  12. In AWS, which service is used for relational databases?
    a) DynamoDB
    b) RDS
    c) S3
    d) EC2
    View Answer

    Correct answer: B — RDS

  13. In GCP, which service is used for container orchestration?
    a) Cloud Functions
    b) GKE (Google Kubernetes Engine)
    c) Cloud SQL
    d) Pub/Sub
    View Answer

    Correct answer: B — GKE (Google Kubernetes Engine)

  14. In Azure, which service provides monitoring and observability?
    a) Azure Monitor
    b) Azure Functions
    c) Azure Blob Storage
    d) Azure VM
    View Answer

    Correct answer: A — Azure Monitor

  15. Which of the following is true about Kubernetes Horizontal Pod Autoscaler (HPA)?
    a) Scales pods based on CPU/memory usage
    b) Requires metrics server
    c) Supports custom metrics
    d) All of the above
    View Answer

    Correct answer: D — All of the above

  16. What will be printed?
    1 System.out.println("Eduinq".substring(0,3));
    a) Edu
    b) Eduinq
    c) Compilation error
    d) Runtime exception
    View Answer

    Correct answer: A — Edu

  17. In AWS, which service is used for CDN (Content Delivery Network)?
    a) CloudFront
    b) S3
    c) RDS
    d) DynamoDB
    View Answer

    Correct answer: A — CloudFront

  18. In GCP, which service provides messaging between applications?
    a) Cloud SQL
    b) Pub/Sub
    c) BigQuery
    d) Cloud Storage
    View Answer

    Correct answer: B — Pub/Sub

  19. In Azure, which service provides container registry?
    a) Azure Container Registry (ACR)
    b) Azure Blob Storage
    c) Azure Functions
    d) Azure Monitor
    View Answer

    Correct answer: A — Azure Container Registry (ACR)

  20. Which of the following is true about microservices resilience patterns?
    a) Circuit Breaker prevents cascading failures
    b) Bulkhead isolates resources
    c) Retry handles transient failures
    d) All of the above
    View Answer

    Correct answer: D — All of the above

  21. In Kubernetes, which object ensures desired number of pod replicas?
    a) Service
    b) Deployment
    c) ConfigMap
    d) Node
    View Answer

    Correct answer: B — Deployment

  22. In AWS, which service is used for monitoring and logging?
    a) CloudWatch
    b) S3
    c) RDS
    d) EC2
    View Answer

    Correct answer: A — CloudWatch

  23. In GCP, which service provides scalable object storage?
    a) Cloud SQL
    b) Cloud Storage
    c) BigQuery
    d) Firestore
    View Answer

    Correct answer: B — Cloud Storage

  24. In Azure, which service provides serverless event driven workflows?
    a) Azure Logic Apps
    b) Azure Functions
    c) Azure VM
    d) Azure Blob Storage
    View Answer

    Correct answer: A — Azure Logic Apps

  25. What will be printed?
    1 System.out.println("Cloud".contains("oud"));
    a) true
    b) false
    c) Compilation error
    d) Runtime exception
    View Answer

    Correct answer: A — true

  26. In AWS, which service is used for scalable NoSQL database?
    a) RDS
    b) DynamoDB
    c) S3
    d) EC2
    View Answer

    Correct answer: B — DynamoDB

  27. In GCP, which service provides ML model deployment?
    a) AI Platform
    b) BigQuery
    c) Cloud SQL
    d) Pub/Sub
    View Answer

    Correct answer: A — AI Platform

  28. In Azure, which service provides Kubernetes orchestration?
    a) AKS (Azure Kubernetes Service)
    b) Azure Functions
    c) Azure Blob Storage
    d) Azure Monitor
    View Answer

    Correct answer: A — AKS (Azure Kubernetes Service)

  29. Which of the following is true about Kubernetes Vertical Pod Autoscaler (VPA)?
    a) Adjusts CPU/memory requests for pods
    b) Works with HPA
    c) Improves resource utilization
    d) All of the above
    View Answer

    Correct answer: D — All of the above

  30. Which of the following is true about AWS Auto Scaling Groups?
    a) Scale EC2 instances automatically
    b) Maintain desired capacity
    c) Integrate with CloudWatch alarms
    d) All of the above
    View Answer

    Correct answer: D — All of the above

  31. In GCP, which service provides relational database?
    a) Cloud SQL
    b) Firestore
    c) BigQuery
    d) Cloud Storage
    View Answer

    Correct answer: A — Cloud SQL

  32. In Azure, which service provides distributed caching?
    a) Azure Redis Cache
    b) Azure Blob Storage
    c) Azure Functions
    d) Azure Monitor
    View Answer

    Correct answer: A — Azure Redis Cache

  33. What will be printed?
    1 System.out.println("Scale".length());
    a) 4
    b) 5
    c) 6
    d) Compilation error
    View Answer

    Correct answer: B — 5

  34. In AWS, which service provides API management?
    a) API Gateway
    b) CloudFront
    c) S3
    d) RDS
    View Answer

    Correct answer: A — API Gateway

  35. In GCP, which service provides monitoring?
    a) Cloud Monitoring (Stackdriver)
    b) BigQuery
    c) Cloud SQL
    d) Pub/Sub
    View Answer

    Correct answer: A — Cloud Monitoring (Stackdriver)

  36. In Azure, which service provides messaging?
    a) Azure Service Bus
    b) Azure Functions
    c) Azure Blob Storage
    d) Azure Monitor
    View Answer

    Correct answer: A — Azure Service Bus

  37. Which of the following is true about microservices scalability best practices?
    a) Use stateless services
    b) Implement caching
    c) Use asynchronous communication
    d) All of the above
    View Answer

    Correct answer: D — All of the above

  38. In AWS, which service provides managed Kubernetes?
    a) ECS
    b) EKS
    c) EC2
    d) CloudFront
    View Answer

    Correct answer: B — EKS

  39. In GCP, which service provides managed relational databases?
    a) Cloud SQL
    b) Firestore
    c) BigQuery
    d) Pub/Sub
    View Answer

    Correct answer: A — Cloud SQL

  40. In Azure, which service provides serverless container hosting?
    a) Azure Container Instances (ACI)
    b) Azure Functions
    c) Azure Blob Storage
    d) Azure Monitor
    View Answer

    Correct answer: A — Azure Container Instances (ACI)

  41. What will be printed?
    1 System.out.println("Eduinq Cloud".indexOf("Cloud"));
    a) 7
    b) 0
    c) -1
    d) Compilation error
    View Answer

    Correct answer: A — 7

  42. In AWS, which service provides managed message queues?
    a) SQS
    b) SNS
    c) RDS
    d) DynamoDB
    View Answer

    Correct answer: A — SQS

  43. In GCP, which service provides ML APIs?
    a) AI Platform
    b) Cloud SQL
    c) BigQuery
    d) Pub/Sub
    View Answer

    Correct answer: A — AI Platform

  44. In Azure, which service provides distributed event streaming?
    a) Event Hubs
    b) Service Bus
    c) Blob Storage
    d) Functions
    View Answer

    Correct answer: A — Event Hubs

  45. Which of the following is true about Kubernetes Cluster Autoscaler?
    a) Adds/removes nodes based on demand
    b) Works with cloud providers
    c) Improves scalability
    d) All of the above
    View Answer

    Correct answer: D — All of the above

  46. In AWS, which service provides monitoring dashboards?
    a) CloudWatch
    b) CloudFront
    c) S3
    d) RDS
    View Answer

    Correct answer: A — CloudWatch

  47. In GCP, which service provides scalable analytics?
    a) BigQuery
    b) Cloud SQL
    c) Firestore
    d) Pub/Sub
    View Answer

    Correct answer: A — BigQuery

  48. In Azure, which service provides container orchestration?
    a) AKS
    b) ACR
    c) Blob Storage
    d) Functions
    View Answer

    Correct answer: A — AKS

  49. What will be printed?
    1 System.out.println("ScaleEduinq".replace("Eduinq","Cloud"));
    a) ScaleCloud
    b) EduinqCloud
    c) ScaleEduinq
    d) Compilation error
    View Answer

    Correct answer: A — ScaleCloud

  50. Which of the following is true about cloud scalability overall?
    a) Scale horizontally by adding nodes
    b) Scale vertically by increasing resources
    c) Use auto scaling features of cloud providers
    d) All of the above
    View Answer

    Correct answer: D — All of the above

Quick Links to Explore