1.
The manage stage of the data life cycle is when a business decides what kind of data it needs, how the data will be handled, and who will be responsible for it.
During planning, a business decides what kind of data it needs, how it will be managed throughout its life cycle, who will be responsible for it, and the optimal outcomes.
2.
A data analyst is working at a small tech startup. They’ve just completed an analysis project, which involved private company information about a new product launch. In order to keep the information safe, the analyst uses secure data-erasure software for the digital files and a shredder for the paper files. Which stage of the data life cycle does this describe?
This describes the destroy phase, during which data analysts use secure data-erasure software and shred paper files to protect private information.
3.
In the analyze phase of the data life cycle, what might a data analyst do? Select all that apply.
In the analyze phase of the data life cycle, a data analyst might use formulas to perform calculations, create a report from the data, or use spreadsheets to aggregate data.
In the analyze phase of the data life cycle, a data analyst might use formulas to perform calculations, create a report from the data, or use spreadsheets to aggregate data.
Review the section on the data life cycle for a refresher.
4.
The data life cycle deals with the stages that data goes through; data analysis involves following a process to analyze data.
The data life cycle deals with the stages that data goes through during its useful life; data analysis involves following a process to analyze data.
5.
A company takes insights provided by its data analytics team, validates them, and finalizes a strategy. They then implement a plan to solve the original business problem. This describes which step of the data analysis process?
Review the section on the data analysis process for a refresher.
6.
A data analyst wants to organize data into rows and columns to analyze it more effectively. A spreadsheet is an effective tool for this process.
Spreadsheets are digital worksheets that can be used to store, organize, and sort data into rows and columns for analysis.
7.
Fill in the blank: A function is a predefined operation, whereas a formula is _____.
A function is a preset command that automatically performs a specified process; a formula is a set of instructions used to perform a specified calculation.
8.
Fill in the blank: To request, retrieve, and update information in a database, data analysts use a ____.
A query enables data analysts to request, retrieve, and update information from a database.
9.
A data analyst wants to retrieve information from a database. Select the correct tool from the data analyst’s toolkit.
A query enables data analysts to request, retrieve, and update information from a database.
10.
A data analyst is presenting at a formal stakeholder meeting. They want to help their audience understand the data by using data visualizations. These visualizations will help the data analyst achieve which goals? Select all that apply.
Data visualization tools make it possible for data analysts to communicate their insights in a more compelling way. Visualizations help others draw conclusions, make decisions, and better understand the data.
Data visualization tools make it possible for data analysts to communicate their insights in a more compelling way. Visualizations help others draw conclusions, make decisions, and better understand the data.
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