Download CompTIA Data+.DA0-001.VCEplus.2024-08-03.116q.tqb

Vendor: CompTIA
Exam Code: DA0-001
Exam Name: CompTIA Data+
Date: Aug 03, 2024
File Size: 3 MB

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Demo Questions

Question 1
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?
  1. The data analyst is not querying the databases correctly.
  2. The databases are recording different events.
  3. The databases are recording the event in different time zones.
  4. The second database is logging incorrectly.
Correct 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.
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.
Question 2
Which of the following is an example of a at flat file?
  1. CSV file
  2. PDF file
  3. JSON file
  4. JPEG file
Correct answer: D
Question 3
Refer to the exhibit.
Given the following graph:
  
Which of the following summary statements upholds integrity in data reporting?
  1. Sales are approximately equal for Product A and Product B across all strategies.
  2. Strategy 4 provides the best sales in comparison to other strategies.
  3. While Strategy 2 does not result in the highest sales of Product D, over all products it appears to be the most effective.
  4. Product D should be promoted more than the other products in all strategies.
Correct answer: B
Explanation:
Strategy 4 provides the best sales in comparison to other strategies. This is because the total sales for Strategy 4 are the highest among all the strategies, as shown by the black line. The other statements are not accurate or do not uphold integrity in data reporting. Here is why:Statement A is false because sales are not approximately equal for Product A and Product B across all strategies. For example, in Strategy 1, Product A has more sales than Product B, while in Strategy 3, Product B has more sales than Product A. Statement C is misleading because it does not account for the difference in scale between the products. While Strategy 2 has the highest total sales among all products, it does not necessarily mean that it is the most effective for each product. For instance, Product D has very low sales in Strategy 2 compared to other strategies.Statement D is biased because it does not provide any evidence or justification for why Product D should be promoted more than the other products in all strategies. It also ignores the fact that Product D has the lowest sales among all products in most of the strategies.
Strategy 4 provides the best sales in comparison to other strategies. This is because the total sales for Strategy 4 are the highest among all the strategies, as shown by the black line. The other statements are not accurate or do not uphold integrity in data reporting. Here is why:
Statement A is false because sales are not approximately equal for Product A and Product B across all strategies. For example, in Strategy 1, Product A has more sales than Product B, while in Strategy 3, Product B has more sales than Product A. 
Statement C is misleading because it does not account for the difference in scale between the products. While Strategy 2 has the highest total sales among all products, it does not necessarily mean that it is the most effective for each product. For instance, Product D has very low sales in Strategy 2 compared to other strategies.
Statement D is biased because it does not provide any evidence or justification for why Product D should be promoted more than the other products in all strategies. It also ignores the fact that Product D has the lowest sales among all products in most of the strategies.
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