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Diggibyte Technologies Azure Data Engineer Interview Questions and Answers

Updated 15 Nov 2022

6 Interview questions

An Azure Data Engineer was asked
Q. How to create mount points? How to load data source to ADLS?
Ans. 

To create mount points in ADLS, use the Azure Storage Explorer or Azure Portal. To load data source, use Azure Data Factory or Azure Databricks.

  • Mount points can be created using Azure Storage Explorer or Azure Portal

  • To load data source, use Azure Data Factory or Azure Databricks

  • Mount points allow you to access data in ADLS as if it were a local file system

  • Data can be loaded into ADLS using various tools such as Az...

An Azure Data Engineer was asked
Q. How to choose a cluster to process the data? What is Azure services ?
Ans. 

Choose a cluster based on data size, complexity, and processing requirements.

  • Consider the size and complexity of the data to be processed.

  • Determine the processing requirements, such as batch or real-time processing.

  • Choose a cluster with appropriate resources, such as CPU, memory, and storage.

  • Examples of Azure clusters include HDInsight, Databricks, and Synapse Analytics.

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An Azure Data Engineer was asked
Q. What is Accumulators? what is groupby key and reducedby key?
Ans. 

Accumulators are variables used for aggregating data in Spark. GroupByKey and ReduceByKey are operations used for data transformation.

  • Accumulators are used to accumulate values across multiple tasks in a distributed environment.

  • GroupByKey is used to group data based on a key and create a pair of key-value pairs.

  • ReduceByKey is used to aggregate data based on a key and reduce the data to a single value.

  • GroupByKey is...

An Azure Data Engineer was asked
Q. What is serialization? what is broadcast join?
Ans. 

Serialization is the process of converting an object into a stream of bytes for storage or transmission.

  • Serialization is used to transfer objects between different applications or systems.

  • It allows objects to be stored in a file or database.

  • Serialization can be used for caching and improving performance.

  • Examples of serialization formats include JSON, XML, and binary formats like Protocol Buffers and Apache Avro.

An Azure Data Engineer was asked
Q. What is DAG? what is RDD?
Ans. 

DAG stands for Directed Acyclic Graph and is a way to represent dependencies between tasks. RDD stands for Resilient Distributed Datasets and is a fundamental data structure in Apache Spark.

  • DAG is used to represent a series of tasks or operations where each task depends on the output of the previous task.

  • RDD is a distributed collection of data that can be processed in parallel across multiple nodes in a cluster.

  • RD...

An Azure Data Engineer was asked
Q. What is the Spark architecture? what is azure sql?
Ans. 

Spark architecture is a distributed computing framework that processes large datasets in parallel across a cluster of nodes.

  • Spark has a master-slave architecture with a driver program that communicates with the cluster manager to allocate resources and tasks to worker nodes.

  • Worker nodes execute tasks in parallel and store data in memory or disk.

  • Spark supports various data sources and APIs for batch processing, str...

Diggibyte Technologies Azure Data Engineer Interview Experiences

1 interview found

I applied via Naukri.com and was interviewed in May 2022. There were 2 interview rounds.

Round 1 - Resume Shortlist 
Pro Tip by AmbitionBox:
Keep your resume crisp and to the point. A recruiter looks at your resume for an average of 6 seconds, make sure to leave the best impression.
View all tips
Round 2 - One-on-one 

(7 Questions)

  • Q1. What is the Spark architecture? what is azure sql?
  • Ans. 

    Spark architecture is a distributed computing framework that processes large datasets in parallel across a cluster of nodes.

    • Spark has a master-slave architecture with a driver program that communicates with the cluster manager to allocate resources and tasks to worker nodes.

    • Worker nodes execute tasks in parallel and store data in memory or disk.

    • Spark supports various data sources and APIs for batch processing, streamin...

  • Answered by AI
  • Q2. What is DAG? what is RDD?
  • Ans. 

    DAG stands for Directed Acyclic Graph and is a way to represent dependencies between tasks. RDD stands for Resilient Distributed Datasets and is a fundamental data structure in Apache Spark.

    • DAG is used to represent a series of tasks or operations where each task depends on the output of the previous task.

    • RDD is a distributed collection of data that can be processed in parallel across multiple nodes in a cluster.

    • RDDs ar...

  • Answered by AI
  • Q3. What is serialization? what is broadcast join?
  • Ans. 

    Serialization is the process of converting an object into a stream of bytes for storage or transmission.

    • Serialization is used to transfer objects between different applications or systems.

    • It allows objects to be stored in a file or database.

    • Serialization can be used for caching and improving performance.

    • Examples of serialization formats include JSON, XML, and binary formats like Protocol Buffers and Apache Avro.

  • Answered by AI
  • Q4. What is your roles and responsibilities in your current project?
  • Q5. What is Accumulators? what is groupby key and reducedby key?
  • Ans. 

    Accumulators are variables used for aggregating data in Spark. GroupByKey and ReduceByKey are operations used for data transformation.

    • Accumulators are used to accumulate values across multiple tasks in a distributed environment.

    • GroupByKey is used to group data based on a key and create a pair of key-value pairs.

    • ReduceByKey is used to aggregate data based on a key and reduce the data to a single value.

    • GroupByKey is less...

  • Answered by AI
  • Q6. How to choose a cluster to process the data? What is Azure services ?
  • Ans. 

    Choose a cluster based on data size, complexity, and processing requirements.

    • Consider the size and complexity of the data to be processed.

    • Determine the processing requirements, such as batch or real-time processing.

    • Choose a cluster with appropriate resources, such as CPU, memory, and storage.

    • Examples of Azure clusters include HDInsight, Databricks, and Synapse Analytics.

  • Answered by AI
  • Q7. How to create mount points? How to load data source to ADLS?
  • Ans. 

    To create mount points in ADLS, use the Azure Storage Explorer or Azure Portal. To load data source, use Azure Data Factory or Azure Databricks.

    • Mount points can be created using Azure Storage Explorer or Azure Portal

    • To load data source, use Azure Data Factory or Azure Databricks

    • Mount points allow you to access data in ADLS as if it were a local file system

    • Data can be loaded into ADLS using various tools such as Azure D...

  • Answered by AI

Interview Preparation Tips

Interview preparation tips for other job seekers - Keep learning until get the job.
we will more focus on practical knowledge.

Skills evaluated in this interview

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Top trending discussions

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Interview Tips & Stories
1w (edited)
a team lead
Why are women still asked such personal questions in interview?
I recently went for an interview… and honestly, m still trying to process what just happened. Instead of being asked about my skills, experience, or how I could add value to the company… the questions took a totally unexpected turn. The interviewer started asking things like When are you getting married? Are you engaged? And m sure, if I had said I was married, the next question would’ve been How long have you been married? What does my personal life have to do with the job m applying for? This is where I felt the gender discrimination hit hard. These types of questions are so casually thrown at women during interviews but are they ever asked to men? No one asks male candidates if they’re planning a wedding or how old their kids are. So why is it okay to ask women? Can we please stop normalising this kind of behaviour in interviews? Our careers shouldn’t be judged by our relationship status. Period.
Got a question about Diggibyte Technologies?
Ask anonymously on communities.

Interview questions from similar companies

I appeared for an interview in Nov 2020.

Interview Questionnaire 

1 Question

  • Q1. Design booking.com.
  • Ans. 

    Design a scalable and efficient platform for booking accommodations, flights, and experiences.

    • User Interface: Create a user-friendly interface for searching and booking accommodations.

    • Database Design: Use a relational database for storing user data, bookings, and property details.

    • Search Functionality: Implement a robust search algorithm to filter results based on user preferences.

    • Scalability: Use microservices architec...

  • Answered by AI

Interview Preparation Tips

Interview preparation tips for other job seekers - prepare SQL complex queries.

I applied via Job Portal and was interviewed before Jul 2021. There were 2 interview rounds.

Round 1 - Coding Test 

Coding test in hacker rank, easy

Round 2 - One-on-one 

(1 Question)

  • Q1. Questions related to dbms, Computer network, basic programming language

Interview Preparation Tips

Interview preparation tips for other job seekers - For freshers, its easy but the pay is less.

I applied via Naukri.com and was interviewed before Aug 2021. There were 3 interview rounds.

Round 1 - Aptitude Test 

MCQ based online test for the technology being interviewed for

Round 2 - Technical 

(1 Question)

  • Q1. Multiple questions related to the technology being interviewed for
Round 3 - HR 

(1 Question)

  • Q1. Employment and salary related questions

Interview Preparation Tips

Interview preparation tips for other job seekers - Know what you have written the resume/CV and prepare for the role you have applied for. Also do some basic research about the company. A thank you in the end would be a cherry on the top!

Data Engineer Interview Questions & Answers

Amazon user image Rohit Kulkarni

posted on 21 Sep 2015

Interview Preparation Tips

Round: Resume Shortlist
Experience: Relevant experience matters, a lot!

Round: HR Interview
Experience: Nothing specific. Just resume based.

Round: Technical Interview
Experience: 7 rounds. Across SQL, Python, Shell Script (bash), platform architectures and Amazon web services (AWS).
Tips: Prepare well - SQL and data architectures for various use cases.

Round: Behavioural Interview
Experience: On Amazons leadersh

I applied via Campus Placement and was interviewed before Jul 2021. There were 3 interview rounds.

Round 1 - Aptitude Test 

In this round we have aptitude plus coding mcq questions

Round 2 - Coding Test 

Here we have to write full fledge code 2 questions were there and are easy

Round 3 - HR 

(1 Question)

  • Q1. Here we have hr plus technical interview

Interview Preparation Tips

Interview preparation tips for other job seekers - Keep working hard and the placement round is easy overall

I applied via Walk-in and was interviewed before Feb 2020. There was 1 interview round.

Interview Questionnaire 

1 Question

  • Q1. Interview mainly asked about spark architecture.

Interview Preparation Tips

Interview preparation tips for other job seekers - Prepare well with the basic

I applied via Recruitment Consultant and was interviewed before Nov 2020. There were 3 interview rounds.

Interview Questionnaire 

2 Questions

  • Q1. Cloud Data Warehousing
  • Q2. SQL, ETL related Questions

Interview Preparation Tips

Interview preparation tips for other job seekers - Strong in SQL and ETL Basics

I applied via Approached by Company and was interviewed before Jun 2021. There were 5 interview rounds.

Round 1 - Coding Test 

About your tech stack along with 2 Programming question basic DS Problems, and 2-3 SQL Queries moderate level.

Round 2 - Coding Test 

3-4 SQL queries medium to high level and 2 programming question moderate level

Round 3 - Case Study 

Data modeling and Data warehousing questions along with SQL queries Hard level

Round 4 - Technical 

(2 Questions)

  • Q1. Create a Data model for the use case like CCD, Pizza hut and questions from that Data model
  • Ans. 

    Design a data model for a pizza delivery service like CCD, focusing on orders, customers, and inventory.

    • Entities: Customers, Orders, Menu Items, Inventory.

    • Relationships: Customers place Orders; Orders contain Menu Items.

    • Attributes: Customer (ID, Name, Address), Order (ID, Date, Total), Menu Item (ID, Name, Price).

    • Example: A customer orders 2 pizzas and a drink, which updates inventory.

    • Consideration for delivery times a...

  • Answered by AI
  • Q2. Data Warehousing and Big data related problems Data pipelines and ETL related Question Cloud computing related questions
Round 5 - One-on-one 

(1 Question)

  • Q1. Techno manager round on case studies to come complex problems.

Interview Preparation Tips

Interview preparation tips for other job seekers - Prepare SQL - moderate to high level, Programming basic to moderate level along with data modeling and warehousing use cases.

Interview Questionnaire 

1 Question

  • Q1. Questions are mostly on azure concepts,SQL server, and data warehousing concepts

Diggibyte Technologies Interview FAQs

How many rounds are there in Diggibyte Technologies Azure Data Engineer interview?
Diggibyte Technologies interview process usually has 2 rounds. The most common rounds in the Diggibyte Technologies interview process are Resume Shortlist and One-on-one Round.
What are the top questions asked in Diggibyte Technologies Azure Data Engineer interview?

Some of the top questions asked at the Diggibyte Technologies Azure Data Engineer interview -

  1. How to create mount points? How to load data source to AD...read more
  2. How to choose a cluster to process the data? What is Azure service...read more
  3. what is Accumulators? what is groupby key and reducedby k...read more

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