AWS SysOps Administrator Foundations

The AWS Certified SysOps Administrator exam validates operational skills for running and managing AWS workloads. Monitoring starts with Amazon CloudWatch, which collects metrics such as CPU utilization and disk activity. CloudWatch Alarms trigger Amazon SNS notifications when thresholds are crossed, and composite alarms combine multiple signals to reduce noise. CloudWatch Logs stores application and system logs, and CloudWatch Logs Insights lets you query them. CloudWatch Dashboards visualize operational health. AWS CloudTrail records API calls for auditing, and the AWS Health Dashboard shows service events affecting your account. A good monitoring strategy defines key metrics, retention, alerting, and response procedures so teams can detect and fix issues quickly.

High availability keeps workloads running during failures. Auto Scaling groups maintain a desired number of EC2 instances and can scale based on load. Launch templates define instance configuration for repeatable launches. Elastic Load Balancing distributes traffic: Application Load Balancer routes HTTP/HTTPS at Layer 7, Network Load Balancer handles TCP/UDP at Layer 4, and Gateway Load Balancer forwards traffic to virtual appliances. Health checks verify that instances and targets can serve traffic. Multi-AZ deployments place resources across Availability Zones, and RDS Multi-AZ provides a synchronous standby for failover. Capacity planning combines scaling policies, utilization monitoring, and testing to handle demand. Architects also consider cost and operational overhead when designing availability.

Automated deployment and provisioning reduce errors and make changes repeatable. AWS CloudFormation defines infrastructure as code with templates, so you can version and review changes. AWS CodeCommit hosts Git repositories, AWS CodeBuild compiles and tests code, AWS CodePipeline automates release pipelines, and AWS CodeDeploy deploys to EC2, Lambda, or on-premises servers. Elastic Beanstalk is a managed PaaS for web applications, and EC2 Image Builder creates golden AMIs with tested software. Deployment strategies include rolling updates, blue/green environments, and canary releases. A golden AMI standardizes operating systems and security settings. Operators should test rollback procedures and monitor deployments with CloudWatch events and alarms.

Storage and networking are core operational domains. Amazon S3 stores objects with storage classes such as Standard, Intelligent-Tiering, and Glacier Deep Archive. Lifecycle policies transition or expire objects, and versioning preserves previous versions. Amazon EBS provides block storage for EC2 with snapshots for backup. Amazon EFS provides scalable Linux file storage, and Amazon FSx provides specialized file systems such as Windows File Server. For networking, security groups filter instance traffic and network ACLs filter subnet traffic. Route tables direct traffic, and NAT gateways provide outbound internet access for private instances. Amazon Route 53 is DNS, Amazon CloudFront is a CDN, VPC Flow Logs capture network metadata, and Site-to-Site VPN or Direct Connect connect on-premises networks.

SysOps administrators balance security, cost, and operational efficiency. AWS IAM controls permissions with roles and policies, and AWS KMS manages encryption keys. AWS Secrets Manager stores and rotates secrets, Amazon GuardDuty detects threats, and Amazon Inspector scans for vulnerabilities. AWS Security Hub centralizes findings, and AWS Artifact provides compliance reports. AWS CloudTrail records API activity for auditing. Service control policies limit permissions in organization accounts. Cost management uses AWS Budgets, Cost Explorer, and Trusted Advisor recommendations. Operators should use least privilege, enable encryption, monitor for anomalies, and document runbooks. Regular patching, backups, and incident response drills keep environments stable and compliant.