What different types of upgrade options are provided in Power Bi?
Live Recorded Interview for Power Bi Developers [Learn] || mindtree-2021
Four major types of upgrade options provided in Microsoft Power BI are as follows:
- Package update - Sync your Power BI Desktop or Excel file between the Power BI service and OneDrive or SharePoint Online.
- Model or data refresh - This refreshes the dataset in the Power BI service with data from the original data source.
- Tile Refresh - This will refresh the cache of tile images on the dashboard every 15 minutes as data changes.
- Refreshing the visual container - This updates the visible container and cached report images in a report when data changes.
Why are you interested in Power Bi? What makes you think Power Bi would be a great career choice?
Power BI is a cloud-based data visualization and reporting tool that allows users to create reports online. Once reports are created, users can share them with their colleagues. This aspect of Power BI makes it very popular with business users. And that's why Power BI is an interesting and promising career option.
Name the different connectivity modes available on the Power Bi
There are three main modes of connectivity used in Power BI.
Import aus SQL-Server
EsqlServer import is the default and most commonly used connectivity type in Power BI. This allows you to use all the features of Power BI Desktop.
direct advice
The Direct Query connection type is only available when connecting to specific data sources. With this type of connectivity, Power BI only stores the metadata of the underlying data and not the actual data.
live connection
With this type of connectivity, you don't store any data in the Power BI model. Any interaction with a report over a live connection directly queries the existing Analysis Services model. There are only three data sources that support the live connection method: SQL Server Analysis Services, Azure Analysis Services, and Power BI datasets hosted by the Power BI service.
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Name some common tasks in the query editor
- formateneâ You can transform your data according to your needs to shape and clean it.
- dynamic columnsâ You can pivot columns and create a table with the added values.
- connect to dataâ You can take data from different sources and transform it.
- group leadersâ You can group values from multiple different rows into a single summary value.
- advanced editorâ You can change the data using the Advanced Query Editor.
- create custom columnsYou can create custom columns using custom formulas.
Why is the Power Bi so popular?
On-premises or in the cloud, Power BI provides a unified, scalable platform for collecting, refining, analyzing, and presenting data. It provides organizations with a 360-degree view of their operations through easy-to-understand, data-rich interactive dashboards and reports. It is part of the Microsoft Business Intelligence Suite and includes a variety of services, products and applications.
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Have you ever updated cloud data reports? Can you explain how?
Cloud technology often presents unique programming and development challenges such as: B. Security and Data Management. Both of these potential challenges are important for professionals such as business analysts who need to be able to deal with large amounts of data. Name a time in the past when you completed this task and briefly explain your steps. If you haven't already updated your data reports, use your understanding of Power BI and the cloud to explain how you can do so.
Example: "At my last job, I was working on a project that required updating data after it was uploaded. Back then, I was using Power BI Personal Gateway to access and update content. Data Management Gateway has the same function.”
What is the difference between Msbi and Power Bi?
| MSBI | |
| MSBI ist Microsoft Business Intelligence | Microsoft Power BI |
| It is a well-established product that helps with ETL processing. | Power BI is primarily a business intelligence tool with very limited ETL processing power |
| It has three components SSIS, SSAS, SSRS | Power BI-Elemente Power BI Desktop, Power BI Service und Power BI Mobile |
| MSBI needs to be installed locally for it to work | Power BI is cloud-based. We can develop reports directly in the Power BI Service, i.e. in the Cloud Workspace. No local deployment is required. |
| It has a complex user interface and is difficult to learn. | It has a simple and easy to learn interface based on Excel and Power Pivots. |
| Can only handle structured and semi-structured data | It can also handle structured, semi-structured and unstructured data. |
| Natural language query is not available | Natural language query available |
| Can handle large datasets | For large datasets, a direct query should be used to generate reports. |
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What is PowerBi used for?
There are a number of tools and techniques for analysis and machine learning in the fascinating and vast field of data science. Power BI is a complete, state-of-the-art solution for data analysis in data science. Data science helps to discover relevant and productive trends and insights. It involves analyzing the data and also helps us identify entirely new features in the data.Business IntelligenceIt filters data to extract meaningful organizational insights and insights. BI enhances and strengthens business infrastructure to achieve desired or predicted outcomes.
Many analysis and data science tasks can be automated with Power BI, eliminating the need for static spreadsheets and presentation tools. One of the most impressive features of Power-most BI is the ability to create stunning visualizations. The software comes with excellent and attractive display templates. The integration of Power BI with data science is of great importance for companies. This enables seamless and effective data visualization, which plays a crucial role in a company's success.
With the help of Power BI, data science visualization can go one step further. Businesses and data scientists rely heavily on Power BI-powered data visualization for various projects. Different types of visualizations and charts are available in Power BI to create an effective visualizationdata science projects.
What are the different versions of Power Bi?
POWERBI INFOSYS INTERVIEW QUESTIONS AND ANSWERS, DISCUSSION, TIPS AND TRICKS FOR POWERBI INTERVIEW.
Fullthree versions of Power BI:
- Power BI workspace. This version is designed for single users and can be installed on a local computer.
- Power BI service. This cloud-based version offers collaboration features and allows users to share their reports and dashboards.
- Mobile Power BI. This release provides access to Power BI reports and dashboards from mobile devices.
Often all three versions are used together by a team.
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Advanced Power Bi Interview Questions
37. Explain where we can store data in Power BI.
Answer: We can store the data in the tables, that is, facts and dimensions.
- Fact tables:This table is central to the star schema of a data warehouse, it helps us store the information to be analyzed which is quantitative.
- Measurement tables:It acts as another table for a data warehouse's star schema. We can store attributes that describe the objects stored in the fact table.
38. Share your knowledge about different views on Power BI Desktop.
Answer: We have three main views on the Power Bi desktop, each with multiple purposes.
- Report view:With this type of view we can add visualizations and reports to publish them accurately on the portal.
- Data display:With the help of this view, we can shape our data using the query editor tools.
- Relationship view:This view allows users to manage relationships between records.
39. Please describe the available Power BI formats.
Answer: Below are the different formats available in Power BI.
- PowerBi table:This format is useful for desktop computers.
- Bi-Power-Service:It's kind of Software as a Service.
- Bi-Mobile Power Applications:It is used for Android and IOS devices.
All of the above are used together and we need to create a report on our desktop. We can then publish and share these reports online for inspection.
40. Can you briefly explain the basic components of Power BI?
41. Describe the main components of the Power Bi Toolkit.
Sample Cancer Analysis Power Bi report
The Cancer Analytics report provides a brief overview and comprehensive analysis of cancer patients in the United States. This allows you to estimate the mortality rates for each type of cancer, broken down by various factors. You can use the Cancer Screening Panel to make informed decisions about the growing number of cancer patients in the United States.
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Q27 Is it possible to use Power Query/Query Editor and Sql together?
Certainly a SQL display can be set as the source of a Power Query/M function for further processing/logic. This is a best practice to ensure that an efficient database query is passed to the source and that the client machine and M role avoid unnecessary processing and complexity.
Explain the difference between Power Bi and Tableau
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Here are the differences between Power BI and Tableau:
Power BI only focuses on modeling and reporting while Tableau is the best tool based on data visualization. Power BI is cheaper while Tableau is very expensive. Power BI is tied to Microsoft Azure while Tableau uses Python machine learning. Power BI has a simple and easy-to-use interface while Tableau has a custom dashboard. Power BI is slow when handling large amounts of data, while Tableau handles any amount of data with ease.
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How to visualize a Power Bi project
There are two ways to create a visualization in Power BI. First add items to the report area in the right pane. Another way is to drag fields from the right sidebar onto the value axis in the view. By default, Power BI selects the table type view. You can add as many fields as you want for each axis. You can also click and drag your visualization to rearrange it on the report canvas. You can easily switch between multiple charts and visualizations in the visualization window. Your specified fields will be converted to the new visual format as accurately as possible.
Now let's understand how data visualization can be done in Power BI.
The first thing you need is data. Power BI can connect multiple data sources: Excel, Web, etc. The options from which data can be imported into Power BI desktop are visible when you click the Get Data icon. You can preview the data in the Fields panel after uploading.
After loading thesample dataOn Power BI Desktop, you can change it using the query editor. Regardless of the data source, query editors are useful for editing records. In the query editor you can make changes, e.g. B. renaming a dataset, removing one or more columns and much more.
You can change the colors of charts in BI dashboards. There is a color picker option when you select any view.
Common Power Bi interview questions
Let's start the Power BI interview questions with a general category that covers all the basics.
1) What is BI?
BI refers to business intelligence, which is the technology-driven flow of data analysis and delivery of actionable insights. He helps companies, managers and employees make better business decisions.
2) What is Power BI?
Power BI is aBusiness Intelligencetool throughMicrosoftwhich allows users to load data from different sources and turn it into data visualizations, reports and dashboards. It is an industry standard tool and most companies use it for their business solutions.
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3) Why Power BI?
Power BI is aindustrial standardtool throughMicrosoftfor business intelligence solutions. Besides creating visualizations, reports and dashboards, the top reasons to choose Power BI are listed below.
- Secure connection to cloud or on-premises data sources.
- Real-time data insights in dashboards and reports with dataset updates.
- Secure environment, rapid deployment, and hybrid configuration.
- Easy data exploration with natural language queries andMachine Learning Models.
- Access to image recognition, text analysis and integration withMachine Learning on Azure.
4) Name the types of Power BI tools
The available Power BI tools are:
5) What data sources can Power BI connect to?
There are several sources that Power BI can connect to, e.g. e.g.:
6) Name some key components of the Power BI toolset
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What is a workspace in Power Bi?
Workspace in Power BI is an environment for uploading content such as reports, dashboards, apps, data sets, etc. to share with a group of people, colleagues, and admins. In a workspace, you can add multiple reports, dashboards, datasets, and so on. and add people to view, edit or change them through provided access. It's like a folder where you keep/save your reports to later share them with the group of people who are interested in organizing.
To create a workspace in Power BI, you must sign in to your Power BI account with the service.
Follow the link below to log into the service and click Workspaces.
You can also add a report to your workspace. First you need to publish it to Power Bi Desktop by using the Publish button on the Home tab with credentials.
Image view of the work area after opening POWER-BI.
If you click on workspaces and then on your specific saved workspace, you will see your saved reports, dashboards, etc. there, which you can share with others and also export.
Question based on a Power Bi scenario
Real-time PowerBI scenarios
road map:
We are currently using Power BI Desktop. In the next 5-6 months we plan to have Azure Analysis Services.
We have Oracle servers in our company.
We need to create a data model in Power BI Desktop so once we have the AAS we can reuse any development we do.
We have a large amount of data in many tables.
Questions:
1. Should we use import method or direct query method for our development if we have all tables on Oracle Server? ?
2. What do we need to do to share our report with users within our organization? If we use the import method, the protected data will be uploaded to the cloud, which we currently don't want as we don't have a license yet.
If we use the direct query method, we need to create a personal gateway to connect to the database and be able to view the data in the reports.
3. There are some limitations for the direct query method, e.g. Combining two columns is not supported in Direct Query. If you have many limitations with the direct query approach, is it worth developing with this approach? ?
4. Is it safe to publish the data model for the service and have a local personal gateway to connect to the database? Because I'm putting my database's tns entry in the services.
Any help would be greatly appreciated.
Questions:
Looking for more Power BI tips, tricks, and tools? Check overthe website I co-own with Mike Carlo. Also if you are near SE WI? join our pug
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What are the different parts of the Microsoft identity?
Hay of the parts of the Microsoft Self-Service Business Intelligence solution:
Excel-BI-Toolkit:Excel BI Toolkit is used to allow users to create interactive reports by importing data from various possible sources and modeling data according to report needs.
Bi Energie:Power BI is an online solution that allows users to share interactive reports and queries that you create with the Excel BI toolkit.
What are KPIs in Power Bi?
KPIs are key performance indicators that evaluate the performance of organizations in various areas, evaluate goals and measurable values. A KPI has a base measure or value that is evaluated against target values. Includes a comparison of performance against target. KPI also helps to evaluate analysis performance with its graphical representation. Therefore, the KPIs show you whether your goals have been achieved or not.
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What do you mean by group
Power BI Desktop helps you group data from your visuals into chunks. However, you can define your groups and containers. To group, use Ctrl + click to select multiple items in the visual. Right-click one of these items and select Group from the menu that appears. In the Groups window you can create new groups or modify existing ones.
How to change X
In Power BI we can change the x-axis dynamically. There are some steps that we must follow to achieve the same thing.
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