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Cognizant Power BI Developer Interview Questions, Process, and Tips
Top Cognizant Power BI Developer Interview Questions and Answers
- Q1. What is Gateway and Dataflow?
- Q2. How and where Gauge charts are used?
- Q3. Types of Security in Power BI?
Cognizant Power BI Developer Interview Experiences
6 interviews found
Anonymous
I applied via Referral and was interviewed in Sep 2024. There was 1 interview round.
(2 Questions)
- Q1. What are duplicates and references
- Ans.
Duplicates are identical copies of data, while references are pointers to the same data in memory.
Duplicates are exact copies of the original data.
References point to the same data in memory.
Duplicates can lead to inconsistencies in data analysis.
References are more memory efficient than duplicates.
- Q2. How do you implement incremental refresh
- Ans.
Incremental refresh in Power BI allows for loading only new or modified data to improve performance.
Set up incremental refresh policy in Power BI Service
Define a range of values for the refresh policy
Use parameters to filter data based on the refresh policy
Schedule regular refreshes to update the dataset
Skills evaluated in this interview
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How was your last interview experience?
I applied via Referral and was interviewed in Jul 2024. There were 2 interview rounds.
(2 Questions)
- Q1. Introduction about us and our self
- Ans.
I am a Power BI Developer with 5 years of experience in creating interactive data visualizations and reports.
I have expertise in Power BI Desktop, Power Query, DAX, and data modeling.
I have experience in connecting to various data sources like SQL Server, Excel, and SharePoint.
I have developed dashboards and reports for sales analysis, financial reporting, and KPI tracking.
I am proficient in creating calculated columns...
- Q2. Queshion on power bi and its services
(2 Questions)
- Q1. Introduction and our eduction
- Q2. Salary
I applied via Indeed and was interviewed in Apr 2024. There was 1 interview round.
Asking about work experiences
What people are saying about Cognizant
Gaurav Sharma
I applied via Naukri.com and was interviewed in Jan 2021. There was 1 interview round.
Interview Questionnaire
3 Questions
- Q1. Types of Security in Power BI?
- Ans.
Power BI provides various types of security to protect data and control access.
Row-level security allows restricting data access based on user roles or filters.
Data encryption ensures that data is securely stored and transmitted.
Azure Active Directory integration enables centralized user authentication and access control.
Power BI service provides access and sharing controls to manage permissions.
Data loss prevention po...
- Q2. How and where Gauge charts are used?
- Ans.
Gauge charts are used to visually represent a single value within a given range.
Gauge charts are commonly used in business dashboards to display key performance indicators (KPIs).
They provide a quick and intuitive way to assess the current status or progress towards a goal.
Gauge charts can be used to show metrics such as sales targets, customer satisfaction scores, or production efficiency.
They are effective in highlig...
- Q3. What is Gateway and Dataflow?
- Ans.
Gateway is a tool that allows Power BI to connect to on-premises data sources. Dataflow is a self-service data preparation tool in Power BI.
Gateway enables Power BI to securely access on-premises data sources.
Dataflow allows users to extract, transform, and load data from various sources into Power BI.
Gateway and Dataflow work together to enable data refresh and data preparation in Power BI.
Gateway can be used to conne...
Interview Preparation Tips
Skills evaluated in this interview
Cognizant interview questions for designations
I applied via Naukri.com and was interviewed before Oct 2021. There were 2 interview rounds.
(2 Questions)
- Q1. Can you please explain previous experience?
- Q2. Can you explain about import model ?
- Ans.
Import model is a Power BI feature that allows you to import data from various sources and create a data model.
Import model is used to create a data model in Power BI.
It allows you to import data from various sources such as Excel, CSV, SQL Server, etc.
You can create relationships between tables, add calculated columns, and measures.
Import model is useful when you have large amounts of data that need to be transformed ...
Interview Preparation Tips
Get interview-ready with Top Cognizant Interview Questions
I applied via Campus Placement and was interviewed before Feb 2021. There were 4 interview rounds.
(1 Question)
- Q1. Sql and os related questions,Java based
(4 Questions)
- Q1. What are your salary expectations?
- Q2. What is your family background?
- Q3. Where do you see yourself in 5 years?
- Q4. Tell me about yourself.
Interview Preparation Tips
Interview questions from similar companies
Vedant Sugandh
(2 Questions)
- Q1. ROW LEVEL SECURITY
- Q2. SUM, SUMIF SUMIFS AND DELETE TRUNCATE
Selected
I applied via Naukri.com and was interviewed in Feb 2024. There were 2 interview rounds.
(2 Questions)
- Q1. Difference Between direct query mode and import mode
- Ans.
Direct query mode connects to data source in real-time, while import mode loads data into Power BI for faster analysis.
Direct query mode connects to data source in real-time, providing up-to-date data
Import mode loads data into Power BI for faster analysis, but may not always reflect real-time changes
Direct query mode is suitable for large datasets that require real-time updates
Import mode is suitable for smaller datas
- Q2. Define powerBI in layman poin of view
- Ans.
PowerBI is a data visualization tool that helps users analyze and visualize data to make informed business decisions.
PowerBI helps in creating interactive reports and dashboards
It allows users to connect to various data sources like Excel, SQL databases, and cloud services
Users can create custom visualizations and share insights with others
PowerBI can be used for data exploration, data modeling, and data storytelling
(1 Question)
- Q1. How the end user access the report
- Ans.
End users can access the report through Power BI Service, Power BI Mobile App, or embedded in other applications.
End users can access the report through Power BI Service by logging in with their credentials
End users can also access the report through Power BI Mobile App on their smartphones or tablets
Reports can be embedded in other applications using Power BI Embedded feature
Interview Preparation Tips
(2 Questions)
- Q1. ROW LEVEL SECURITY
- Q2. How to install Data Gateway in power bi
- Ans.
Data Gateway can be installed in Power BI by downloading and running the installer.
Download the Data Gateway installer from the Power BI service
Run the installer and follow the installation wizard
Sign in with your Power BI account to register the gateway
Skills evaluated in this interview
Interview Questionnaire
1 Question
- Q1. What is a power bi
- Ans.
Power BI is a business analytics tool that provides interactive visualizations and business intelligence capabilities.
Power BI is a Microsoft product used for data analysis and visualization.
It allows users to connect to various data sources and create interactive reports and dashboards.
Power BI provides a wide range of visualizations, such as charts, maps, and tables, to represent data.
Users can create custom calculat...
Skills evaluated in this interview
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Cognizant Power BI Developer Interview Process
based on 6 interviews
1 Interview rounds
- Technical Round
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Cognizant Power BI Developer Reviews and Ratings
based on 46 reviews
Rating in categories
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Associate
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