Introduction

The rate of cloud computing adoption continues to rise, as it has for several years. Technology companies and startups often embrace the cloud early, while heavily regulated industries like healthcare and finance may have a slower adoption process due to security and compliance considerations. This all results in a demand for cloud systems' operators to deploy, monitor, scale, and run the day-to-day operations of a cloud implementation.

This rate of adoption represents an opportunity for systems operators to add to their existing toolset a suite of cloud computing best practices. The best practices put forward by the well-architected framework is intended to allow you to accomplish an implementation that leverages the best and most practical intelligence available. This results in scalable, resilient, highly available, and operationally excellent workloads.

This certification of systems operations for AWS Cloud systems is intended to make sure you understand the variety of critical services that are focused on operations, monitoring, security, and networking. You can dig into the documentation since it's already available online. However, aggregating the reading list from documentation and whitepapers can add up very fast and consume a large amount of time.

We wrote this book so that you don't have to do that aggregation. The idea is to present you with a comprehensive set of services, configurations, and features that are typically in daily use during systems operations. Our hope is that this book saves you time and helps you successfully complete the certifications. We speak from experience; using Wiley cert prep books is how we gained certification our very first time a few years ago. We sincerely hope it does the same for you. Thank you for picking it up.

What Does This Book Cover?

This book covers the topics you need to understand as you prepare to take the AWS Certified SysOps Administrator - Associate exam. The topics that we cover in this book include the following:

• Chapter 1, "AWS Fundamentals": The first part of the book starts with the foundational topics that you need to know and understand before you dig into the rest of the book content. These topics include account creation, using the management console, using the command-line interface (CLI), and the Personal Health dashboard. This is basically a review of concepts that should be familiar to you already.
• Chapter 2, "Account Creation, Security, and Compliance": The second chapter covers identity and access management, Access Analyzer, AWS Organizations, AWS Directory Service, AWS Control Tower, and AWS License Management. This chapter concentrates on account creation and the different modalities to implement authentication and authorization for users and administrators. Some of the tasks covered in this chapter are:
  • Implementing IAM features (for example, password policies, multifactor authentication [MFA], roles, SAML, federated identity, resource policies, policy conditions)
  • Troubleshooting and auditing access issues by using AWS services (for example, CloudTrail, IAM Access Analyzer, IAM policy simulator)
  • Validating service control policies (SCPs) and permissions boundaries
  • Reviewing AWS Trusted Advisor security checks
  • Validating AWS region and service selections based on compliance requirements
  • Implementing secure multi-account strategies (for example, AWS Control Tower, AWS Organizations)
• Chapter 3, "AWS Cost Management": In the third chapter of this book, the focus shifts to cost analysis and management. The cost and usage report, AWS Cost Explorer, Savings Plan, and Budgets are discussed to give you the tools to manage your costs effectively. Some of the tasks covered in this chapter are:
  • Implementing cost allocation tags
  • Identifying and remediating underutilized or unused resources by using AWS services and tools (for example, Trusted Advisor, AWS Compute Optimizer, AWS Cost Explorer)
  • Configuring AWS Budgets and billing alarms
  • Assessing resource usage patterns to qualify workloads for EC2 Spot Instances
  • Identifying opportunities to use managed services (for example, Amazon RDS, AWS Fargate, Amazon EFS)
  • Recommending compute resources based on performance metrics
  • Monitoring Amazon Elastic Block Store (Amazon EBS) metrics and modifying configuration to increase performance efficiency
  • Implementing S3 performance features (for example, S3 Transfer Acceleration, multipart uploads)
  • Monitoring RDS metrics and modifying the configuration to increase performance efficiency (e.g., Performance Insights, RDS Proxy)
  • Enabling enhanced EC2 capabilities (e.g., Elastic Network Adapter, instance store, placement groups)
• Chapter 4, "Automated Security Services and Compliance": The fourth chapter of the book introduces the variety of services that are available. When you activate a service in your account and region, the service operates almost automatically for the protections it provides. Services include Amazon Inspector for EC2s, AWS Security Hub, Amazon Guard Duty, Amazon Detective, Amazon Macie, AWS Shield, AWS WAF, AWS Firewall Manager, AWS Key management services, AWS Secrets Manager, and AWS Certificate Manager. Some of the tasks covered in this chapter are:
  • Enforcing a data classification scheme
  • Creating, managing, and protecting encryption keys
  • Implementing encryption at rest (e.g., AWS Key Management Service [AWS KMS])
  • Implementing encryption in transit (e.g., AWS Certificate Manager [ACM], VPN)
  • Securely storing secrets by using AWS services (e.g., AWS Secrets Manager, Systems Manager Parameter Store)
  • Reviewing reports or findings (e.g., AWS Security Hub, Amazon GuardDuty, AWS Config, Amazon Inspector)
• Chapter 5, "Compute": In the fifth chapter we discuss compute services. One of the most common questions here is whether containers are included. As of this writing, Amazon Elastic Container Service and Registry (ECS and ECR) and Amazon Lightsail are "out of scope" for this exam. We cover Amazon Machine Images (AMIs), Amazon EC2, Amazon EC2 Image Builder, Elastic Load Balancers, Auto Scaling, and AWS Lambda. Some of the tasks covered in this chapter are:
  • Configuring Elastic Load Balancing (ELB) and Amazon Route 53 health checks
  • Differentiating between the use of a single availability zone and multi-AZ deployments (e.g., Amazon EC2 Auto Scaling groups, ELB, Amazon FSx, Amazon RDS)
  • Implementing fault-tolerant workloads (e.g., Amazon Elastic File System [Amazon EFS], Elastic IP addresses)
• Chapter 6, "Storage, Migration, and Transfer": As its title suggests, in Chapter 6 we cover storage, migration, and transfer services like Amazon S3, Amazon S3 Glacier, Elastic Block Store, Elastic File System, Amazon FSx, AWS Backup, AWS Storage Gateway, AWS Data Sync, and the Snowball AWS transfer family of devices. Some of the tasks covered in this chapter are:
  • Automating snapshots and backups based on use cases (e.g., RDS snapshots, AWS Backup, RTO and RPO, Amazon Data Lifecycle Manager, retention policy)
  • Restoring databases (e.g., point-in-time restore, promote read replica)
  • Implementing versioning and life cycle rules
  • Configuring Amazon S3 Cross-Region Replication (CRR)
  • Performing disaster recovery procedures
• Chapter 7, "Databases": It is important to understand all AWS databases in terms of their name and what function they provide, and, more importantly, in which situations to use them. This chapter concentrates on the implementation and operation of Amazon RDS, including Aurora. This should provide a sign that Amazon RDS is a service that needs to be understood well for the exam. It's also important to understand how to use ElastiCache, the engines it supports, and the types of caching process that can be implemented. Some of the tasks covered in this chapter are:
  • Implementing caching
  • Implementing Amazon RDS replicas and Amazon Aurora replicas
  • Differentiating between horizontal scaling and vertical scaling
• Chapter 8, "Monitoring, Logging, and Remediation": This is probably the main chapter of the study guide as it contains the material that has the highest percentage of coverage in the exam. In this chapter we discuss Amazon CloudWatch as a service to monitor AWS and third-party tools; Amazon CloudWatch Logs, for the aggregation and processing of log streams; and Amazon CloudWatch Events (also known as Amazon EventBridge), AWS CloudTrail, AWS Config, and AWS Systems Manager as some of the services allowing for scalable deployments and operations. Some of the tasks covered in this chapter are:
  • Identifying, collecting, analyzing, and exporting logs (e.g., Amazon CloudWatch Logs, CloudWatch Logs Insights, AWS CloudTrail logs)
  • Collecting metrics and logs by using the CloudWatch agent
  • Creating CloudWatch alarms
  • Creating metric filters
  • Creating CloudWatch dashboards
  • Configuring notifications (e.g., Amazon Simple Notification Service [Amazon SNS], CloudWatch alarms, AWS Health events)
  • Troubleshooting or taking corrective actions based on notifications and alarms
  • Configuring Amazon EventBridge rules to invoke actions
  • Using AWS Systems...