Amazon CloudWatch and CloudTrail

Question 1

What is CloudWatch?

Answer 1

It is a monitoring service to monitor the AWS resources, as well as the applications that are run on AWS.

Question 2

What can CloudWatch monitor?

Answer 2

Services such as, EC2 Instances, Autoscaling Groups, Elastic Load Balancers, Route53 Health Checks, EBS Volumes, Storage Gateways, and CloudFront.

Question 3

What Host Level Metrics can CloudWatch monitor with EC2?

Answer 3

CPU, Network, Disk, Status Check, monitor the Hypervisor and the underlying EC2 instance.

Question 4

What is CloudTrail?

Answer 4

It records and tracks AWS Management Console actions and which user is performing the actions. Such as, launching an S3 bucket, or viewing an object in a bucket.

Question 5

What is the difference between CloudWatch and CloudTrail?

Answer 5

CloudWatch monitors performance metrics.

CloudTrail monitors user activity in the AWS Console, and logs it.

Question 6

What is the default CloudWatch monitoring interval?

Answer 6

5 minutes, but detailed monitoring can be turned on for intervals as low as 1 minute.

Question 7

How is access to the AWS CLI provisioned?

Answer 7

Programmability access must be granted.

Question 8

What features does CloudWatch offer?

Answer 8

CloudWatch Dashboards - to monitor performance
CloudWatch Alarms - trigger notifications
CloudWatch Events - to respond to state changes
CloudWatch Logs - to monitor and store logs