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Question 25 - DA0-001 discussion

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A recurring event is being stored in two databases that are housed in different geographical locations. A data analyst notices the event is being logged three hours earlier in one database than in the other database. Which of the following is the MOST likely cause of the issue?

A.
The data analyst is not querying the databases correctly.
Answers
A.
The data analyst is not querying the databases correctly.
B.
The databases are recording different events.
Answers
B.
The databases are recording different events.
C.
The databases are recording the event in different time zones.
Answers
C.
The databases are recording the event in different time zones.
D.
The second database is logging incorrectly.
Answers
D.
The second database is logging incorrectly.
Suggested answer: C

Explanation:

The most likely cause of the issue is that the databases are recording the event in different time zones. For example, if one database is in New York and the other database is in Los Angeles, there is a three-hour difference between them. Therefore, an event that occurs at 12:00 PM in New York would be recorded as 9:00 AM in Los Angeles. To avoid this issue, the databases should either use a common time zone or convert the timestamps to a standard format. Therefore, option C is correct.

Option A is incorrect because the data analyst is not querying the databases incorrectly, but rather observing a discrepancy in the timestamps.

Option B is incorrect because the databases are recording the same event, but with different timestamps.

Option D is incorrect because the second database is not logging incorrectly, but rather using a different time zone.

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asked 02/10/2024
Norm Scott
31 questions
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