2.0 Reliability and Business Continuity SOA-C03 Practice Quiz

110 exam-style questions covering 22% of the SOA-C03 exam. Instant feedback on every answer, progress tracking, no signup required.

This domain is part of the AWS Certified CloudOps Engineer Associate practice test. Each question is tagged by exam objective and difficulty so you can drill exactly the areas you need.

Sample Questions

A web application on EC2 has traffic spikes every weekday morning. The operations team wants capacity to increase automatically based on demand. What should be configured?
  • A. An Auto Scaling group with a target tracking scaling policy
  • B. An S3 Lifecycle rule for old access logs
  • C. A Route 53 private hosted zone
  • D. An AWS Backup plan for the instances

compute scaling mechanisms is best addressed by An Auto Scaling group with a target tracking scaling policy, because it matches the availability, recovery, or scaling requirement in the scenario. This is the correct answer.

An Auto Scaling group scales in too aggressively and terminates instances before requests complete. Which adjustment is most appropriate?
  • D. Tune cooldowns, health checks, and termination policies
  • A. Enable S3 Intelligent-Tiering
  • B. Create a CloudTrail Lake query
  • C. Change the ACM validation method

compute scaling mechanisms is best addressed by Tune cooldowns, health checks, and termination policies, because it matches the availability, recovery, or scaling requirement in the scenario. This is the correct answer.

An ECS service must maintain the desired number of tasks during variable load. Which configuration supports this requirement?
  • B. ECS service auto scaling based on CloudWatch metrics
  • A. EBS fast snapshot restore
  • C. S3 Transfer Acceleration
  • D. IAM Access Analyzer

compute scaling mechanisms is best addressed by ECS service auto scaling based on CloudWatch metrics, because it matches the availability, recovery, or scaling requirement in the scenario. This is the correct answer.

A stateless application must run across multiple Availability Zones and add instances when average request count per target rises. Which policy should be used?
  • A. An Auto Scaling target tracking policy using ALBRequestCountPerTarget
  • B. A manual Systems Manager run command every hour
  • C. An EFS lifecycle policy
  • D. A GuardDuty finding export

compute scaling mechanisms is best addressed by An Auto Scaling target tracking policy using ALBRequestCountPerTarget, because it matches the availability, recovery, or scaling requirement in the scenario. This is the correct answer.

An EC2 Auto Scaling group has instances failing health checks but not being replaced. Which setting should be reviewed?
  • D. The Auto Scaling health check type, grace period, and load balancer health check integration
  • A. The S3 replication destination Region
  • B. The DynamoDB table partition key
  • C. The CloudFront cache policy TTL

compute scaling mechanisms is best addressed by The Auto Scaling health check type, grace period, and load balancer health check integration, because it matches the availability, recovery, or scaling requirement in the scenario. This is the correct answer.

A Lambda-based workload is throttled during bursts because concurrent executions exceed the configured limit. What should be evaluated?
  • C. Reserved concurrency, account concurrency quotas, and upstream retry behavior
  • A. S3 bucket versioning and object lock
  • B. Route 53 weighted routing only
  • D. RDS storage autoscaling only

compute scaling mechanisms is best addressed by Reserved concurrency, account concurrency quotas, and upstream retry behavior, because it matches the availability, recovery, or scaling requirement in the scenario. This is the correct answer.

An operations team wants predictable extra capacity before a planned marketing event. Which scaling option should be added?
  • B. Scheduled scaling for the Auto Scaling group
  • A. Route 53 Resolver DNS Firewall
  • C. Amazon Macie sensitive data discovery
  • D. AWS Backup Vault Lock

compute scaling mechanisms is best addressed by Scheduled scaling for the Auto Scaling group, because it matches the availability, recovery, or scaling requirement in the scenario. This is the correct answer.

A Kubernetes workload on EKS needs pod replicas to increase based on CPU. Which component should be configured?
  • C. Horizontal Pod Autoscaler with metrics available to the cluster
  • A. S3 Batch Operations
  • B. AWS Certificate Manager private CA
  • D. Route 53 failover routing

compute scaling mechanisms is best addressed by Horizontal Pod Autoscaler with metrics available to the cluster, because it matches the availability, recovery, or scaling requirement in the scenario. This is the correct answer.

Key Terms in This Domain

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