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Aws big data Speciality Exam


#1

An Operations team continuously monitors the number of visitors to a website to identify any potential system problems. The number of website visitors varies throughout the day. The site is more popular in the middle of the day and less popular at night. Which type of dashboard display would be the MOST useful to allow staff to quickly and correctly identify system problems?
A. A single KPI metric showing the statistical variance between the current number of website visitors and the historical number of website visitors for the current time of day.
B. A vertical stacked bar chart showing today’s website visitors and the historical average number of
website visitors.
C. A scatter plot showing today’s website visitors on the X-axis and the historical average number of website visitors on the Y-axis.
D.An overlay line chart showing today’s website visitors at one-minute intervals and also the historical average number of website visitors.