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Perficient Data Engineer Interview Questions and Answers
Perficient Data Engineer Interview Experiences
3 interviews found
Komal Vanjari
(2 Questions)
- Q1. JOINS , Exception handling
- Q2. Triggers, Cursors , Constraints
Anonymous
(2 Questions)
- Q1. What are the tools I used for the data engineering ?
- Ans.
Tools used for data engineering include ETL tools, programming languages, databases, and cloud platforms.
ETL tools like Apache NiFi, Talend, and Informatica are used for data extraction, transformation, and loading.
Programming languages like Python, Java, and Scala are used for data processing and analysis.
Databases like MySQL, PostgreSQL, and MongoDB are used for storing and managing data.
Cloud platforms like AWS, Azu...
- Q2. Explain the blockers I got while working?
- Ans.
Blockers faced while working as a Data Engineer
Lack of proper documentation
Inadequate infrastructure
Data quality issues
Limited access to necessary data sources
Inefficient data processing pipelines
Interview Preparation Tips
Skills evaluated in this interview
Selected
I applied via Campus Placement and was interviewed before May 2023. There was 1 interview round.
(1 Question)
- Q1. Given que on self join to find Hierarchy of employee
Interview Preparation Tips
- Sql, python, snowlake, adf
Top trending discussions
Interview questions from similar companies
I was interviewed in Aug 2017.
Interview Preparation Tips
Experience: every one put their views
Tips: just tell anything. no one listen
Duration: 5 minutes
Round: Test
Experience: online test
Tips: do those question which can be solved without usingpen paper first
Duration: 5 minutes
Total Questions: 50
Skills: Relieving Pressure
I applied via Company Website and was interviewed before Jun 2020. There were 4 interview rounds.
Interview Questionnaire
2 Questions
- Q1. Python data structures
- Q2. MongoDB database algorithms
- Ans.
MongoDB database algorithms are used for efficient data storage, retrieval, and processing.
MongoDB uses various algorithms for indexing, sharding, and aggregation.
Indexing algorithms include B-tree, hash, and text search indexes.
Sharding algorithms include range-based, hash-based, and zone-based sharding.
Aggregation algorithms include map-reduce and aggregation pipeline.
MongoDB also uses algorithms for query optimizati
Interview Preparation Tips
Skills evaluated in this interview
I applied via Walk-in and was interviewed before Jun 2020. There was 1 interview round.
Interview Questionnaire
1 Question
- Q1. Da tools
Interview Preparation Tips
I applied via Walk-in and was interviewed before Aug 2021. There were 2 interview rounds.
(1 Question)
- Q1. How to transpose data set
- Ans.
Transposing a data set involves flipping rows and columns.
Identify the data set to be transposed
Create a new table with the columns and rows flipped
Copy the data from the original table to the new table
Transpose can be done using Excel, Python, R, SQL, etc.
Example: Transposing a table of sales data to have products as rows and months as columns
Interview Preparation Tips
I applied via Recruitment Consultant and was interviewed in Aug 2020. There were 4 interview rounds.
Interview Questionnaire
1 Question
- Q1. Prior experience,questions related to data analysis tools.
Interview Preparation Tips
The reason behind the offer letter delay is they have to get approvals from multiple teams which creates a delay on the process.
I applied via Naukri.com and was interviewed before Aug 2021. There were 2 interview rounds.
(1 Question)
- Q1. What is Structured Query Language?
- Ans.
Structured Query Language (SQL) is a programming language used to manage and manipulate relational databases.
SQL is used to create, modify, and delete databases, tables, and data
It is used to retrieve data from databases using queries
SQL is used to perform operations on data such as sorting, filtering, and grouping
Examples of SQL-based database management systems include MySQL, Oracle, and Microsoft SQL Server
Interview Preparation Tips
Skills evaluated in this interview
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
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