Sears Holdings Data Engineer Interview Questions and Answers

Q1. Wxaplinnyour project
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Q2. How would you build a pipeline to connect http source and bring data in adls
Ans. 
Build a pipeline to connect http source and bring data in adls
• Set up a data ingestion tool like Apache NiFi or Azure Data Factory to pull data from the http source

• Transform the data as needed using tools like Apache Spark or Azure Databricks

• Store the data in Azure Data Lake Storage (ADLS) for further processing and analysis
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Q3. Dimension and fact tabel difference
Ans. 
Dimension tables store descriptive attributes while fact tables store quantitative data.
• Dimension tables contain attributes that describe the business entities, such as customer, product, or time.

• Fact tables contain quantitative data or metrics that are typically numeric and additive, such as sales revenue or quantity sold.

• Dimension tables are denormalized and have a one-to-many relationship with fact tables.

• Fact table...read more
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Q4. Write slq query to get employee having 2manager
Ans. 
Use a self join to find employees with 2 managers in SQL query.
• Use a self join on the employee table to join the table with itself.

• Count the number of distinct managers for each employee.

• Filter the results to only include employees with 2 managers.
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Q5. Get second highest salary usingSQL
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Q1. Python coding, SQL theoretical
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Q2. SPARK working question
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Sql questions and python logics

Q1. About sql and python
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Q2. Hadoop and kinit
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Q1. About partitions and bucketing Spark optimization Question from hadoop All questions were scenario based
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Basic details of Pyspark optimization question

Q1. Job optimization is pyspark
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Q1. Clueless and very rude interviewer. The troglodyte asked only from my past experience and everything not included either in the job description or my resume.
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Q1. Wxaplinnyour project
Add your answer
Q2. How would you build a pipeline to connect http source and bring data in adls
Ans. 
Build a pipeline to connect http source and bring data in adls
• Set up a data ingestion tool like Apache NiFi or Azure Data Factory to pull data from the http source

• Transform the data as needed using tools like Apache Spark or Azure Databricks

• Store the data in Azure Data Lake Storage (ADLS) for further processing and analysis
Answered by AI
Add your answer
Q3. Dimension and fact tabel difference
Ans. 
Dimension tables store descriptive attributes while fact tables store quantitative data.
• Dimension tables contain attributes that describe the business entities, such as customer, product, or time.

• Fact tables contain quantitative data or metrics that are typically numeric and additive, such as sales revenue or quantity sold.

• Dimension tables are denormalized and have a one-to-many relationship with fact tables.

• Fact table...read more
Answered by AI
Add your answer
Q4. Write slq query to get employee having 2manager
Ans. 
Use a self join to find employees with 2 managers in SQL query.
• Use a self join on the employee table to join the table with itself.

• Count the number of distinct managers for each employee.

• Filter the results to only include employees with 2 managers.
Answered by AI
Add your answer
Q5. Get second highest salary usingSQL
Add your answer

Q1. System Design Questions, Situation based problems of system design
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Q2. Data Structure Coding question of HashMap
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Q1. Again System design, Question from your project and architecture of your project
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