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Cognizant
Proud winner of ABECA 2024 - AmbitionBox Employee Choice Awards
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I applied via Referral and was interviewed in Sep 2024. There was 1 interview round.
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.
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
I applied via Referral and was interviewed in Jul 2024. There were 2 interview rounds.
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...
I applied via Indeed and was interviewed in Apr 2024. There was 1 interview round.
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I applied via Naukri.com and was interviewed in Jan 2021. There was 1 interview round.
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...
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...
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...
Cognizant interview questions for designations
I applied via Naukri.com and was interviewed before Oct 2021. There were 2 interview rounds.
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 ...
Get interview-ready with Top Cognizant Interview Questions
I applied via Campus Placement and was interviewed before Feb 2021. There were 4 interview rounds.
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...
posted on 22 Oct 2024
based on 6 interviews
1 Interview rounds
based on 48 reviews
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Associate
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Programmer Analyst
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Senior Associate
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