Question 131 · 365 in bank
A company wants to know how its customers interact with an e-commerce website based on clicks over items. Which of the following is the primary requirement for this report?
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Answer: A
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DA0-001 practice questions 131–140
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Question 132 · 365 in bank
Which of the following types of analyses should be used to evaluate the connections and anomalies in a data set when either known patterns are being violated or new patterns are emerging?
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Answer: D
Question 133 · 365 in bank
An analyst wants to create a historical data set for the past five years with each year in its own data set. Which of the following methods is the best way to create this historical data set?
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Answer: B
Question 134 · 365 in bank
Which of the following is an example of a at flat file?
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Answer: A
Explanation
A. A CSV (comma-separated values) file is an example of a flat file. A flat file is a file that stores data in a simple, unstructured format, with each line of the file representing a single record. Flat files are typically used to store simple data sets that do not require the complexity or functionality of a full database management system. CSV files are a common type of flat file, and they are often used to store data that can be imported into other applications or systems. The other options (PDF file, JSON file, and JPEG file) are not examples of flat files. PDF files are used to store documents, JSON files are used to store data in a structured, hierarchical format, and JPEG files are used to store images.
Source: Adapted from community discussion — CineFeX
Question 135 · 365 in bank
A manager would like to see a report that details lost deals for the week. Which of the following report delivery methods best supports this requirement?
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Answer: A
Explanation
The best report delivery method for a manager who wants to see a detailed report on lost deals for the week is A. Ad hoc Explanation: Ad hoc reports are created on demand to answer specific questions, like "what were the lost deals this week?" This makes it the most suitable option for this scenario as the manager needs a customized report for a specific time frame.
Source: Adapted from community discussion — 927eb66
Question 136 · 365 in bank
Given the following graph:
Which of the following summary statements upholds integrity in data reporting?
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Answer: C
Explanation
C. Summary statement C upholds integrity in data reporting because it accurately reflects the information shown in the graph. The graph shows that Strategy 2 does not result in the highest sales of Product D, but it appears to be the most effective overall when all products are considered. This summary statement accurately summarizes the information in the graph and does not make any false or misleading statements. The other summary statements (Sales are approximately equal for Product A and Product B across all strategies, Strategy 4 provides the best sales in comparison to other strategies, and Product D should be promoted more than the other products in all strategies) are not accurate based on the information shown in the graph, and they do not uphold integrity in data reporting.
Source: Adapted from community discussion — examtp1
Question 137 · 365 in bank
An analyst is required to run a text analysis of data that is found in articles from a digital news outlet. Which of the following would be the BEST technique for the analyst to apply to acquire the data?
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Answer: A
Explanation
Web scraping is a technique that can be used to acquire data from websites. It involves using a program or tool to extract data from the website's HTML code and structure it into a format that can be analyzed. This technique is often used to extract large amounts of data from websites that do not have an API (application programming interface) or other means of accessing the data. In the case of an analyst who is required to run a text analysis of data found in articles from a digital news outlet, web scraping would be the best technique to apply to acquire the data. The analyst can use a web scraping tool or program to extract the text data from the news articles and structure it in a way that is suitable for analysis. The other options (sampling, data wrangling, and ETL) are not as relevant to the task of acquiring data from a digital news outlet for text analysis. Sampling involves selecting a subset of data for analysis, data wrangling involves cleaning and preparing data for analysis, and ETL (extract, transform, load) refers to a process used to move data between systems.
Source: Adapted from community discussion — CineFeX
Question 138 · 365 in bank
Which of the following techniques is used to quantify data?
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Answer: B
Question 139 · 365 in bank
An employer needs to maintain adequate office staffing during the winter and wants to track storm data. Which of the following data collection methods should the employer use?
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Answer: D
Question 140 · 365 in bank
An analyst runs a report on a daily basis, and the number of datapoints must be validated before the data can be analyzed. The number of datapoints increases each day by approximately 20% of the total number from the day before. On a given day, the number of datapoints was 8,798. Which of the following should be the total number of datapoints on the next day?
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Answer: C
Explanation
C. The number of datapoints increases each day by approximately 20% of the total number from the day before. If on a given day the number of datapoints was 8,798, the total number of datapoints on the next day should be approximately 20% higher than this number. This means that the total number of datapoints on the next day should be around 8,798 + (20% * 8,798) = 8,798 + (1.6 * 8,798) = 8,798 + 14,087.6 = 22,885.6. Rounding this number to the nearest hundred gives 10,600. Therefore, the total number of datapoints on the next day should be approximately 10,600. The other options (7,038, 9,600, and 10,800) are not correct because they do not accurately reflect the 20% increase in the number of datapoints from one day to the next.
Source: Adapted from community discussion — CineFeX
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