Become an AWS pro with hands-on labs, quizzes, and practice exams; gain practical experience and master AWS Services, security, and troubleshooting. Developed by AWS Solution Certified Architects.

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Cloud computing is necessary for organizations of all sizes, from large enterprises to small startups. Amazon Web Services (AWS) is a cloud provider with the largest customer share. An AWS SysOps Administrator operates and maintains the AWS infrastructure while handling cybersecurity, which is a high-demand skill.

This course provides in-depth coverage of core AWS Services, including EC2, Auto Scaling, ELB, VPC, IAM, S3, RDS, and more. You’ll learn AWS best practices for security, compliance, automation, monitoring, and troubleshooting through practical hands-on labs for key topics. You’ll test your knowledge by attempting quizzes and two full-length sample AWS SysOps Administrator - Associate practice exams at the end. 

By the end of the course, you’ll have gained practical experience through real-world examples and hands-on labs in administering systems and applications running on AWS to ace the AWS Certified SysOps Administrator - Associate exam.

AWS Certified SysOps Administrator - Associate Exam Prep


# Status checks
AWS does some default status checks on our EC2 instance. These system status checks help us identify if the EC2 instance has encountered problems that might affect its normal functioning. These are the built-in status checks in the EC2 instances that we can’t configure. The status checks are performed every minute on the instance. If all the checks pass, the overall status of the instance is okay, and if one or more checks fail, the overall status is impaired. 

AWS performs two types of status checks on our instances:

- **System status checks:** These checks monitor the AWS hardware and software used to run the EC2 instances. When this status check fails, we have three options:
   * We can either stop and restart (not reboot) our EC2 instance, which will assign a new host to our EC2 instance and fix the issue for us. This solution will only work if our EC2 instance is EBS-backed.
   * We can terminate instance store-backed instances and provision new EC2 instances.
   * We can wait for AWS to fix the issue on its end.

- **Instance status checks:** These checks monitor issues with our EC2 instances, like memory exhaustion, corrupted file systems, and more. When the instance status check fails, we can resolve this issue by rebooting the system or changing the instance configuration.

We can set up self-healing architectures by using Cloudwatch alarms that allow our EC2 instances to automatically perform a preset action if the status check fails.

# Practical
In the following widget, we'll:
* Create a key pair.
* Create a security group.
* Find AMI and subnet IDs.
* Launch a new EC2 instance.
* Create a CloudWatch alarm to initiate the `ec2:recover` action whenever the instance fails its status checks.

Introduction

Getting Started with AWS

AWS IAM

AWS EC2

AWS Load Balancers and Auto Scaling Groups

AWS Storage Services

AWS Databases

AWS ElastiCache

AWS Elastic Beanstalk and CloudFront

AWS CloudFormation

AWS Monitoring

AWS VPC

AWS Route 53

AWS Security Services and Encryption

AWS Systems Manager

Important AWS Services

AWS SysOps Administrator Practice Exams

EC2 Instance Checks

Status checks