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AWS Certification CloudOps Engineer Associate (SysOps) 2024 past questions and answers

This 2024 AWS Certification CloudOps Engineer Associate (SysOps) set has 20 practice questions. Try these 5 free sample questions, tap a question to reveal the answer and explanation. Then practise the whole 2024 set with instant marking.

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Sample AWS Certification CloudOps Engineer Associate (SysOps) 2024 questions

1. An application on an EC2 instance publishes a custom CloudWatch heartbeat metric every minute. Operations must be alerted if the application stops publishing, even when the metric simply disappears. Which alarm configuration best meets this requirement?
  1. Set the alarm threshold to zero and leave missing data untreated.
  2. Configure the alarm to treat missing data as breaching.
  3. Create an alarm on the EC2 CPUUtilization metric with missing data treated as not breaching.
  4. Set the alarm period to one day and evaluate one datapoint.

Answer: B. Configure the alarm to treat missing data as breaching.

Treating missing data as breaching makes the alarm enter ALARM when expected heartbeat datapoints stop arriving. A threshold cannot detect absent samples if missing data is ignored or treated as healthy.

2. A team stores application logs in CloudWatch Logs. Policy requires logs to be retained for 90 days and then removed automatically to control storage costs. What is the simplest solution?
  1. Create a daily Lambda function that lists and deletes old log events.
  2. Export all logs to an EC2 instance and delete them there after 90 days.
  3. Set a 90-day retention policy on the CloudWatch Logs log group.
  4. Disable log ingestion after 90 days.

Answer: C. Set a 90-day retention policy on the CloudWatch Logs log group.

A log-group retention setting automatically expires events after the selected period without a custom cleanup process. Disabling ingestion does not expire existing events.

3. An EC2 instance intermittently experiences an underlying AWS system-level failure. The operations team wants CloudWatch to attempt recovery automatically when the system status check fails, with minimal custom code. Which action should they configure on the alarm?
  1. Configure the alarm to recover the EC2 instance.
  2. Configure the alarm to reboot the instance whenever CPU utilization is above 80%.
  3. Configure the alarm to terminate the instance and disable its Auto Scaling group.
  4. Configure the alarm to increase the instance's EBS volume size.

Answer: A. Configure the alarm to recover the EC2 instance.

EC2 automatic recovery can be configured as a CloudWatch alarm action for a system status check failure, moving the instance to healthy hardware while preserving its instance ID and attached EBS volumes. A CPU alarm does not identify an underlying host failure.

4. A web application uses an Amazon RDS database that must continue operating if its current Availability Zone becomes unavailable. The team wants AWS to handle the database failover without application-level replica promotion logic. Which configuration is most appropriate?
  1. Create a read replica in the same Availability Zone and direct writes to it.
  2. Enable a Multi-AZ DB deployment for the RDS database.
  3. Schedule a weekly manual database snapshot.
  4. Increase the database storage allocation.

Answer: B. Enable a Multi-AZ DB deployment for the RDS database.

RDS Multi-AZ maintains a synchronous standby in another Availability Zone and manages failover for supported deployments. A read replica is primarily for read scaling or separately managed recovery, not automatic Multi-AZ failover for the primary.

5. Users occasionally overwrite important objects in an S3 bucket by mistake. They need a straightforward way to recover a previous object version. What should the administrator enable?
  1. S3 Transfer Acceleration.
  2. A bucket policy that permits only multipart uploads.
  3. S3 Versioning on the bucket.
  4. An S3 event notification to Amazon SNS.

Answer: C. S3 Versioning on the bucket.

S3 Versioning preserves prior object versions so an overwritten object can be recovered. Transfer Acceleration and notifications do not retain historical object contents.

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