DA0-001 Dumps PDF 2023 Strategy Your Preparation Efficiently [Q81-Q100]

NO.81 What effort has the goal of maintaining a single source of truth for the most important data elements handled by the organization?

NO.82 Mario works with a group of R programmers tasked with copying data from an accounting system into a data warehouse.
In what phase are the group’s R skills most relevant?

NO.83 Which of the following data sampling methods involves dividing a population into subgroups by similar characteristics?

NO.84 What is NOT a characteristic of a good data steward?

NO.85 A company’s marketing department wants to do a promotional campaign next month. A data analyst on the team has been asked to perform customer segmentation, looking at how recently a customer bought product, at what frequency, and at what value. Which of the following types of analysis would this practice be considered?

NO.86 Which one of the following programming languages is specifically designed for use in analytics applications?

NO.87 What type of policy defines an individual’s responsibilities when accessing, using, sharing, and removing organizational data?

NO.88 An analyst needs to provide a chart to identify the composition between the categories of the survey response data set:

Which of the following charts would be BEST to use?

NO.89 The process of performing initial investigations on data to spot outliers, discover patterns, and test assumptions with statistical insight and graphical visualization is called:

NO.90 A data analyst is creating a report that will provide information about various regions, products, and time periods. Which of the following formats would be the MOST efficient way to deliver this report?

NO.91 You are working with a professional statistician to perform an analysis and would like to use a statistics package.
Which one of the following would be the most appropriate?

NO.92 Which of the following BEST describes standard deviation?

NO.93 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?

NO.94 An analyst has received the requirements for an internal user dashboard. The analyst confirms the data sources and then creates a wireframe. Which of the following is the NEXT step the analyst should take in the dashboard creation process?

NO.95 Which of the following contains alphanumeric values?

NO.96 Which of the following data types would a telephone number formatted as XXX-XXX-XXXX be considered?

NO.97 What type of visualization allows the use of a bar chart for continuous variables?

NO.98 Angela is aggregating data from CRM system with data from an employee system.
While performing an initial quality check, she realizes that her employee ID is not associated with her identifier in the CRM system.
What kind of issues is Angela facing?
Choose the best answer.

NO.99 Consider the following dataset which contains information about houses that are for sale:

Which of the following string manipulation commands will combine the address and region name columns to create a full address?
full_address————————- 85 Turner St, Northern Metropolitan 25 Bloomburg St, Northern Metropolitan 5 Charles St, Northern Metropolitan 40 Federation La, Northern Metropolitan 55a Park St, Northern Metropolitan

NO.100 What is the final stage of the data lifecycle?