NTT Data Azure DevOps Engineer Interview Questions and Answers

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Q1. Tell me something about yourself? Why are you interested in this job? Would you like to work overtime or odd hours? How do you handle stress, pressure, and anxiety? Etc..
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Q1. Git,CI/CD pipelines,terraform,aetifacts,etc.
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Q1. Activities used in ADF
Ans. 
Activities in Azure Data Factory (ADF) are the building blocks of a pipeline and perform various tasks like data movement, data transformation, and data orchestration.
• Activities can be used to copy data from one location to another (Copy Activity)

• Activities can be used to transform data using mapping data flows (Data Flow Activity)

• Activities can be used to run custom code or scripts (Custom Activity)

• Activities can be u...read more
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Q2. Dataframes in pyspark
Ans. 
Dataframes in pyspark are distributed collections of data organized into named columns.
• Dataframes are similar to tables in a relational database, with rows and columns.

• They can be created from various data sources like CSV, JSON, Parquet, etc.

• Dataframes support SQL queries and transformations using PySpark functions.

• Example: df = spark.read.csv('file.csv')
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Q1. Managerial Questions
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Q2. About project roles and resposibilities
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Q1. How are you connecting your onPerm from Azure?
Ans. 
I connect onPrem to Azure using Azure ExpressRoute or VPN Gateway.
• Use Azure ExpressRoute for private connection through a dedicated connection.

• Set up a VPN Gateway for secure connection over the internet.

• Ensure proper network configurations and security settings.

• Use Azure Virtual Network Gateway to establish the connection.

• Consider using Azure Site-to-Site VPN for connecting onPremises network to Azure Virtual Network.
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Q2. What is Autoloader in Databricks?
Ans. 
Autoloader in Databricks is a feature that automatically loads new data files as they arrive in a specified directory.
• Autoloader monitors a specified directory for new data files and loads them into a Databricks table.

• It supports various file formats such as CSV, JSON, Parquet, Avro, and ORC.

• Autoloader simplifies the process of ingesting streaming data into Databricks without the need for manual intervention.

• It can be ...read more
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Q3. How do you normalize your Json data
Ans. 
Json data normalization involves structuring data to eliminate redundancy and improve efficiency.
• Identify repeating groups of data

• Create separate tables for each group

• Establish relationships between tables using foreign keys

• Eliminate redundant data by referencing shared values
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Q4. How do you read from Kafka?
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1 and half hour complete round

Q1. Tell me about yourself
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Q2. Why do you want to work at Capgemini
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Q3. Describe a challenging situation at work
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Q4. Where do you see yourself in 5 years?
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Q5. What are your strength and weakness
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Q1. Give an overall introduction
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Q1. Technical questions based on skills
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30 Minutes Round- Easy to moderate level

Q1. Day to day activities?
Ans. 
Day to day activities involve managing Azure DevOps pipelines, monitoring builds, resolving issues, collaborating with teams.
• Managing Azure DevOps pipelines for continuous integration and deployment

• Monitoring builds and deployments for any issues or failures

• Resolving any issues that arise during the development process

• Collaborating with development teams to ensure smooth workflow and communication

• Implementing best prac...read more
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Q2. Quetsions on various devops tools
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Q1. How would you create a pipeline for ADLS to SQL data movement?
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Q2. How would you create a pipeline from REST API to ADLS? What is there are 8 million rows of records?
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Q3. IF data needs filtering, joining and aggregation, how would you do it with ADF?
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Q4. Explain medallion architecture.
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Q5. Explain medallion with databricks
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Q1. Basic questions and salary expectation.
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