Which of the below mentioned services provides detailed monitoring with CloudWatch without charging the user extra?

A user is trying to understand the detailed CloudWatch monitoring concept.

Which of the below mentioned services provides detailed monitoring with CloudWatch without charging the user extra?
A . AWS Auto Scaling
B . AWS Route 53
C . AWS EMR
D . AWS SNS

Answer: B

Explanation:

CloudWatch is used to monitor AWS as well as the custom services. It provides either basic or detailed monitoring for the supported AWS products. In basic monitoring, a service sends data points to CloudWatch every five minutes, while in detailed monitoring a service sends data points to CloudWatch every minute. Services, such as RDS, ELB, OpsWorks, and Route 53 can provide the monitoring data every minute without charging the user.