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Cognizant Azure Data Engineer Interview Questions and Answers
Cognizant Azure Data Engineer Interview Experiences
7 interviews found
Anonymous
I appeared for an interview in Dec 2024.
(4 Questions)
- Q1. 2 Python Questions based on Strong and List manipulation.
- Q2. 2 Sql Questions
- Q3. 1 Pyspark Question
- Q4. What is service principal, ADF questions...
(2 Questions)
- Q1. Introduction. Question on last company why left.
- Q2. Salary Negotiation.
Selected
I applied via Naukri.com
(4 Questions)
- Q1. Based on my previous company projects
- Q2. SQL based questions are asked
- Q3. ADF based questions are asked
- Q4. Azure related questions are asked
(1 Question)
- Q1. Reg salary discussion
Interview Preparation Tips
I applied via Referral and was interviewed in May 2024. There was 1 interview round.
(2 Questions)
- Q1. Basic Pyspark questions
- Q2. SQL queries based on join , case and row to column changes
Interview Preparation Tips
- Azure
- pyspark
- sql join
What people are saying about Cognizant
Subiksha Manojkumar
(1 Question)
- Q1. Regarding experience in previous company
Cognizant interview questions for designations
(1 Question)
- Q1. How to copy multiple tables from on-prim to Azure blob storage
- Ans.
Use Azure Data Factory to copy multiple tables from on-premises to Azure Blob Storage
Create a linked service to connect to the on-premises data source
Create datasets for each table to be copied
Create a pipeline with copy activities for each table
Use Azure Blob Storage as the sink for the copied tables
Interview Preparation Tips
Skills evaluated in this interview
(1 Question)
- Q1. What is a polybase ?
- Ans.
PolyBase is a technology in Azure that allows you to query data from external sources like Hadoop or SQL Server.
PolyBase enables you to run T-SQL queries on data stored in Hadoop or Azure Blob Storage.
It can also be used to query data from SQL Server, Oracle, Teradata, and other relational databases.
PolyBase uses external tables to define the schema and location of the external data sources.
It provides a seamless way t...
(1 Question)
- Q1. What is serverless sqlpool?
- Ans.
Serverless SQL pool is a feature in Azure Synapse Analytics that allows on-demand querying of data without the need for managing infrastructure.
Serverless SQL pool is a pay-as-you-go service for running ad-hoc queries on data stored in Azure Data Lake Storage or Azure Blob Storage.
It eliminates the need for provisioning and managing dedicated SQL pools, making it more cost-effective for sporadic or unpredictable worklo...
Interview Questionnaire
1 Question
- Q1. Whole architecture of azure project, eto solutions using ADF, ADB, few SQL queries , azure sql pool
Interview questions from similar companies
I applied via Campus Placement and was interviewed before Feb 2020. There were 4 interview rounds.
Interview Questionnaire
1 Question
- Q1. Hr
Interview Preparation Tips
I applied via Campus Placement and was interviewed in Mar 2020. There was 1 interview round.
Interview Questionnaire
1 Question
- Q1. How do you get the second to last element from a SQL table?
- Ans.
To get the second to last element from a SQL table, use the OFFSET-FETCH clause.
Use the ORDER BY clause to sort the table in descending order.
Use the OFFSET-FETCH clause to skip the last row and fetch the second to last row.
Example: SELECT column_name FROM table_name ORDER BY column_name DESC OFFSET 1 ROWS FETCH NEXT 1 ROWS ONLY;
Interview Preparation Tips
Skills evaluated in this interview
I applied via Referral and was interviewed before Oct 2020. There were 3 interview rounds.
Interview Questionnaire
1 Question
- Q1. Mostly on core java n spring
Interview Preparation Tips
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Cognizant Azure Data Engineer Interview Process
based on 7 interviews
1 Interview rounds
- Technical Round
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Cognizant Azure Data Engineer Reviews and Ratings
based on 22 reviews
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