Monitoring, deployment, and operations concepts tested on the AWS SysOps Administrator exam.
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- What does CloudWatch monitor in AWS?
- Metrics, logs, and alarms for AWS resources and applications
- What is a CloudWatch metric?
- A time-ordered variable that represents a measurement of an AWS resource or application
- What is the default resolution for CloudWatch metrics?
- 1 minute
- What does CloudTrail record?
- AWS API calls and account activity
- What is Auto Scaling in AWS?
- A service that automatically adds or removes EC2 instances based on demand
- What is a launch template in Auto Scaling?
- A configuration blueprint specifying the AMI, instance type, key pair, and other settings for new instances
- What is the primary purpose of a security group?
- To control inbound and outbound traffic at the instance level
- What is a Network ACL?
- A stateless firewall that controls traffic at the subnet level
- What does CloudFormation do?
- Automates provisioning and management of AWS infrastructure using templates
- What is an IAM role?
- A set of permissions that define what AWS services and resources an entity can access
- What is the difference between scale-up and scale-out?
- Scale-up adds resources to existing instances; scale-out adds new instances
- What does Elastic Beanstalk do?
- Deploys and manages web applications without managing underlying infrastructure
- What is a CloudWatch log group?
- A collection of log streams from the same source
- What is a CloudWatch alarm?
- A threshold-based notification that triggers when a metric crosses a specified state
- What are the three possible states of a CloudWatch alarm?
- OK, ALARM, and INSUFFICIENT_DATA