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WGU D467 - EXPLORING DATA EXAM |
OBJECTIVE ASSESSMENT | {LATEST 2026/ 2027
UPDATE} COMPLETE ACTUAL AND AUTHENTIC
EXAM | BRAND NEW!
What are cookies? Types of malware that can damage computers Small files stored on computers that contain information about users Programs that enable users to access websites Pieces of code that store information about a website Small files stored on computers that contain information about users Fill in the blank: Broader-topic folders are located at the top of a _____, and more specific subfolders and files are contained within those folders. hierarchy file extension
permission encryption hierarchy Which of the following statements accurately describe first-, second-, and third-party data? Select all that apply.
- When using third-party data, it's important to confirm its accuracy.
- Second-party data is sold by a trusted partner to another party.
- Third-party data is collected by an individual or group using their own resources.
- A key benefit of using first-party data is that the user knows where it came from.
- When using third-party data, it's important to confirm its accuracy.
- Second-party data is sold by a trusted partner to another party.
- A key benefit of using first-party data is that the user knows where it came from.
Fill in the blank: A relational database contains a series of _____ that can be connected to form relationships. tables cells fields spreadsheets tables What is the term for an identifier that references a database column in which each value is unique? Field Relation Primary key Foreign key Primary key
What process do data professionals use to eliminate data redundancy, increase data integrity, and reduce complexity in a database? Composition Normalization Manipulation Iteration Normalization Fill in the blank: When using a relational database, data analysts write _____ to request data from the related tables. relationships keys queries programs queries
Representative Descriptive An international nonprofit organization wants to merge third-party data with its own data. Which of the following actions will help make this process successful? Select all that apply. Use metadata to standardize the datasets. Replace the incoming data's metadata with its own company metadata. Use metadata to evaluate the third-party data's quality and credibility. Alter the internal metadata to more closely reflect the incoming metadata. Use metadata to standardize the datasets Use metadata to evaluate the third-party data's quality and credibility Fill in the blank: Data _____ is a process data professionals use to ensure the formal management of their organization's data assets.
sourcing governance organization storage governance What are some key benefits of open-data initiatives? Select all that apply. Limit opportunities for collaboration Make government activities more transparent Support innovation and economic growth Help educate citizens about important issues Make government activities more transparent Support innovation and economic growth Help educate citizens about important issues
In Google Sheets, what function enables a data analyst to specify a range of cells in one spreadsheet to be duplicated in another? SPECIFY DUPLICATE IMPORTRANGE CELLRANGE IMPORTRANGE What is the process for arranging data into a meaningful order to make it easier to understand, analyze, and visualize? Filtering Prioritizing Reframing Sorting Sorting
A data analyst is reviewing a national database of real estate sales. They are only interested in sales of condominiums. How can the analyst narrow their scope? Sort by condominium sales Filter out non-condominium sales Filter out condominium sales Sort by non-condominium sales Filter out non-condominium sales A data analyst works for a rental car company. They have a spreadsheet that lists car ID numbers and the dates cars were returned. How should they sort the spreadsheet to find the most recently returned cars? By return date, in ascending order By return date, in descending order By car numerical ID, in ascending order By car numerical ID, in descending order
The sample mean approaches the population mean The sample bias is reduced if the sample being selected is representative of the population. A data analyst is performing analysis on data stored in a big data platform with state-of-the-art analysis tools. Insufficient sample size is rendering the current analysis ineffective. What is the primary challenge of a larger sample size? Collecting a larger sample size is more expensive. Analyzing a larger sample size is complex. Storing a larger sample size is difficult. Cleansing a larger sample size is complicated. Collecting a larger sample size is more expensive. In the next six months, an analyst is expected to analyze and present the effects of monthly promotions on sales of a new product released one month ago. Which solution for insufficient data should this analyst pursue?
Look for a new data set Identify trends with available data Speak with stakeholders and adjust the objective Wait for more data Wait for more data A team leader is assigned the task of evaluating the schema of a data set as part of data cleansing. How would the team leader define a schema to the analyst collaborating on the project prior to commencing cleansing? How well two or more data sets work together A way of describing how something is organized A process of combining two or more data sets into a single data set A way of matching fields in separate databases A way of describing how something is organized
What does an UPDATE statement do after execution in Structured Query Language (SQL)? Modifies values in certain cells of a table based on conditions Inserts new rows into the table based on data provided in the query Removes tables based on the query Creates a temporary table to be downloaded for analysis and visualization Modifies values in certain cells of a table based on conditions An analyst wants to extract data from a table by filtering for certain conditions prior to performing data cleansing. Which Structured Query Language (SQL) statement will perform this function? LENGTH statement DISTINCT statement TRIM statement WHERE statement WHERE statement
An analyst wants to combine the fields for city and state into a single field prior to extraction for data cleansing. Which Structured Query Language (SQL) statement will perform this function? CONCAT statement CAST statement ORDER BY statement COALESCE statement CONCAT statement An analyst wants to present a high-level summarized version of the data at the end of data cleansing. Which spreadsheet functionality should the analyst use? Conditional formatting Pivot table Find and replace
Compares dirty data with clean data Ensures the data collected and cleansed will address the original purpose Chronologically documents how the data set evolved during the project Helps build trust in the cleansing process and data Ensures the data collected and cleansed will address the original purpose An analyst used a column of a table to uniquely identify each record within a table. Which tool did they use? Normalization Field Foreign key Primary key Primary key
Which tool is used by data analysts to store and organize data, making it easier for them to manage and access information? Primary key Table Database Foreign key Database Which element of a Notepad file would be considered data as opposed to underlying metadata? File contents File description FIle date File size File contents
