A user has setup a web application on EC2. The user is generating a log of the application performance at every second.
There are multiple entries for each second. If the user wants to send that data to CloudWatch every minute, what should
he do?

A.
The user should send only the data of the 60th second as CloudWatch will map the receive data timezone with the sent data timezone

B.
It is not possible to send the custom metric to CloudWatch every minute

C.
Give CloudWatch the Min, Max, Sum, and SampleCount of a number of every minute

D.
Calculate the average of one minute and send the data to CloudWatch

Explanation:
Amazon CloudWatch aggregates statistics according to the period length that the user has specified while getting data
from CloudWatch. The user can publish as many data points as he wants with the same or similartime stamps.
CloudWatch aggregates them by the period length when the user calls get statistics about those data points. CloudWatch
records the average (sum of all items divided by the number of items. of the values received for every 1-minute period,
as well as the number of samples, maximum value, and minimum value for the same time period. CloudWatch will
aggregate all the data which have time stamps within a one-minute period.