aws sysops administrator Practice Exam 2025: Latest Questions

An operations team needs to be notified only when an EC2 instance has failed both the system status check and the instance status check for more than 5 minutes. Which solution meets this requirement with the least operational overhead?

A company uses an Auto Scaling group behind an Application Load Balancer (ALB). During deployments, the team wants to replace instances without reducing capacity and ensure that traffic is sent only to healthy instances. Which configuration best supports this goal?

A SysOps administrator must ensure that newly created EBS volumes are encrypted by default across an AWS account in a Region. Which action should the administrator take?

A team is troubleshooting intermittent connectivity to a private application hosted on EC2 instances in private subnets. The instances have no public IP addresses. The team needs temporary, auditable access to run diagnostic commands without opening inbound SSH from the internet. Which solution should they use?

A company is using AWS CloudFormation to provision infrastructure. A stack update fails and the stack enters UPDATE_ROLLBACK_FAILED. The team has identified and fixed the underlying cause, and they want CloudFormation to continue rolling back to the last stable state. What should they do?

A web application in a VPC uses Amazon RDS in private subnets. After a recent change, the application cannot connect to the database. The RDS instance is available, and the credentials are correct. Which change is the MOST likely cause?

An S3 bucket stores application logs. The security team requires that all object uploads use server-side encryption with AWS KMS keys (SSE-KMS). Uploads that are not encrypted with SSE-KMS must be denied. Which solution meets this requirement?

An application uses EC2 instances with Amazon EBS gp3 volumes. Users report slower response times during peak load. CloudWatch shows high volume queue length and the EBS throughput is consistently at the configured limit, while CPU utilization is moderate. What is the BEST action to improve performance?

A company operates a critical workload across two AWS Regions using Route 53 failover records. The secondary Region should receive traffic only when the primary Region is unhealthy. The workload is behind ALBs in each Region. Which setup provides the MOST reliable automated failover decision?

A company uses AWS Organizations with multiple accounts. A central security account must aggregate and retain configuration history and compliance status for all member accounts. The solution must support organization-wide aggregation with minimal per-account administration. What should a SysOps administrator implement?

An operations team needs to be notified when an EC2 instance is expected to run out of instance-store space within the next hour. The team wants an AWS-managed approach with minimal custom code. Which solution should a SysOps administrator implement?

A SysOps administrator must enforce that all new EBS volumes created in an account are encrypted. Existing workflows create volumes in multiple Regions. Which approach meets the requirement with the least operational overhead?

A company uses Amazon S3 to store application logs. The logs must be retained for 7 years, must be protected from deletion, and must be verifiable as untampered for compliance audits. Which S3 feature set best meets these requirements?

An application running on EC2 in a private subnet must retrieve parameters from AWS Systems Manager Parameter Store. The instances do not have internet access and must not use a NAT gateway. Which solution allows the instances to reach Parameter Store and related Systems Manager APIs?

A company is using CloudFormation to deploy a stack that includes an RDS DB instance and several IAM roles. The last deployment failed and left some resources created. The company wants subsequent deployments to automatically roll back changes on failures and to prevent partially-created stacks from remaining. What should a SysOps administrator do?

A company uses an Application Load Balancer (ALB) in front of an Auto Scaling group. Users intermittently receive 504 Gateway Timeout errors during peak load. Instance CPU and memory are normal, but application logs show occasional slow database queries. What is the MOST appropriate first step for a SysOps administrator to improve reliability while investigating the root cause?

A SysOps administrator needs to automate the patching of a fleet of EC2 instances across multiple accounts. The solution must provide centralized visibility of patch compliance and allow scheduling with minimal custom tooling. Which approach should be used?

A workload uses Amazon DynamoDB with on-demand capacity. During traffic spikes, some requests are throttled and users experience errors. The table uses a partition key with a small set of hot values. What action should a SysOps administrator take to MOST effectively reduce throttling?

A company needs to copy objects from one S3 bucket to another bucket in a different account. The source bucket must remain private. The destination account must be able to verify object integrity and must not require long-term access keys. Which solution meets these requirements?

A mission-critical application runs in one Region using EC2 instances and an Aurora database. Management requires the ability to fail over the entire workload to a second Region with minimal downtime and controlled costs. The company can tolerate some data loss but wants automated failover and DNS-based traffic switching. Which architecture best meets these requirements?

A SysOps administrator is troubleshooting intermittent connectivity from an on-premises network to multiple VPC subnets over a Site-to-Site VPN. The VPN tunnel is up, but some on-premises hosts cannot reach instances in one specific subnet. Which configuration issue is the MOST likely cause?

A company must ensure that all newly created EBS volumes are encrypted and that users cannot create unencrypted volumes in a specific AWS account. Which solution best enforces this requirement?

An operations team uses AWS Systems Manager Run Command to apply configuration changes across a fleet of EC2 instances. Several instances consistently show as "Not reachable" in Systems Manager. The instances are in private subnets with no direct internet access. Which action will MOST likely resolve the issue?

A workload runs on EC2 instances in an Auto Scaling group. During scale-in events, some instances terminate while still processing long-running jobs, causing data inconsistency. The team needs a solution that allows instances to finish in-flight work before termination. What should a SysOps administrator do?

A company wants to reduce cost for a fleet of EC2 instances while maintaining a baseline level of performance. The workload is steady and can tolerate instance interruptions only if capacity is quickly replaced. Which approach provides the BEST cost optimization with minimal operational overhead?