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Carelon Global Solutions Big Data Engineer Interview Questions and Answers
Carelon Global Solutions Big Data Engineer Interview Experiences
1 interview found
I applied via Recruitment Consultant and was interviewed in Jun 2021. There were 3 interview rounds.
Interview Questionnaire
2 Questions
- Q1. First Interviewer should know answer before asking the candidate, What He wanted to ask , even if you say correct answer, He can't recognize, nowadays Interviewers are like that 2021 07 03 12:30
- Ans. Col1 100 100 200 200 300 400 400 400 using partition By col1 get the rank col1 rank 100 1 100 1 200 1 200 1 300 1 400 1 400 1 400 1 I am telling him if we use partition by we will get like this only but He is not listening what to do
- Q2. Col1 100 100 200 200 300 400 400 400 using partition By col1 get the rank col1 rank 100 1 100 1 200 1 200 1 300 1 400 1 400 1 400 1
Interview Preparation Tips
Companies should follow rules to who can take interviews.
Simply selecting and wasting other's time
Interview questions from similar companies
I applied via Company Website and was interviewed in Oct 2024. There were 4 interview rounds.
Basic Python, SQL, and Bash questions
(4 Questions)
- Q1. SQL questions with operations that include changing from string to array. Tip: stick to RDBMS-specific dialects only (like Postgres), I used Spark SQL
- Q2. Simple Python questions with a follow-up to optimise it
- Q3. Bash script-based questions, are pretty basic.
- Q4. Data pipeline design and best practices.
- Ans.
Data pipeline design involves creating a system to efficiently collect, process, and analyze data.
Understand the data sources and requirements before designing the pipeline.
Use tools like Apache Kafka, Apache NiFi, or AWS Glue for data ingestion and processing.
Implement data validation and error handling mechanisms to ensure data quality.
Consider scalability and performance optimization while designing the pipeline.
Doc...
(3 Questions)
- Q1. Easy to medium Leetcode-based question. With moderate difficulty.
- Q2. Simple Python-based question with optimisation.
- Q3. Design specific questions based on Data pipelines.
(3 Questions)
- Q1. SQL-based question with moderate difficulty.
- Q2. Python-based questions, follow questions with some optimisations.
- Q3. Bash-script based round.
Skills evaluated in this interview
Data Analyst Interview Questions & Answers
Automatic Data Processing (ADP)
Anonymous
posted on 29 Dec 2024
It is nice to do work
It helps in understanding the 5
It helps a lot in company
(5 Questions)
- Q1. How to do job in company?
- Q2. What I should do?
- Q3. How to do work?
- Q4. What should I do
- Q5. What is the goal?
- Ans.
The goal of a Data Analyst is to analyze data to extract valuable insights and make data-driven decisions.
Identify trends and patterns in data
Create visualizations to communicate findings
Provide actionable recommendations based on data analysis
(3 Questions)
- Q1. What is bigadata
- Ans.
Big data refers to large and complex data sets that are difficult to process using traditional data processing applications.
Big data involves large volumes of data
It includes data from various sources such as social media, sensors, and business transactions
Big data requires specialized tools and technologies for processing and analysis
- Q2. How spark works
- Ans.
Spark is a distributed computing framework that processes big data in memory and is known for its speed and ease of use.
Spark is a distributed computing framework that can process data in memory for faster processing.
It uses Resilient Distributed Datasets (RDDs) for fault-tolerant distributed data processing.
Spark provides high-level APIs in Java, Scala, Python, and R for ease of use.
It supports various data sources li...
- Q3. Explain your application
- Ans.
Our application is a data engineering platform that processes and analyzes large volumes of data to provide valuable insights.
Our application uses various data processing techniques such as ETL (Extract, Transform, Load) to clean and transform raw data into usable formats.
We utilize big data technologies like Hadoop, Spark, and Kafka to handle large datasets efficiently.
The application also includes machine learning al...
Interview Preparation Tips
Selected
I applied via Company Website and was interviewed in Jul 2024. There were 5 interview rounds.
(1 Question)
- Q1. Basic ml related questions,past project discussion
(1 Question)
- Q1. AI, ML related, statistical analysis of the graph.
(1 Question)
- Q1. Work culture, check
(1 Question)
- Q1. Work culture, project discussion, scenario based questions
(1 Question)
- Q1. Basic HR questions, why sap salary discussions
I applied via Referral and was interviewed in Mar 2024. There were 2 interview rounds.
(1 Question)
- Q1. Basic of python , sql, pandas,niumpy
(1 Question)
- Q1. Gave me a task to make web app for medical condition detection after clearing first round asked questions relted to it
shreyansh sahay
(1 Question)
- Q1. Explain surrogate key
- Ans.
Surrogate key is a unique identifier used in databases to uniquely identify each record in a table.
Surrogate keys are typically generated by the system and have no business meaning.
They are used to simplify database operations and improve performance.
Example: Using an auto-incrementing integer column as a surrogate key in a table.
I applied via Campus Placement and was interviewed in May 2024. There were 2 interview rounds.
It's seems to be easy
It is quite difficult
Data Scientist Interview Questions & Answers
Microsoft Corporation
Ayush Goyal
posted on 31 Mar 2024
Selected
I was interviewed in Oct 2023.
Based on topological sort
(1 Question)
- Q1. Ml baiscs like LR, SVM
(1 Question)
- Q1. Ml design questions were asked
(1 Question)
- Q1. Why do you want to join
(2 Questions)
- Q1. Basic pandas questions on dataframes
- Q2. Some quiz questions
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Carelon Global Solutions Big Data Engineer Reviews and Ratings
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Rating in categories
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Senior Software Engineer
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|  ₹9.2 L/yr - ₹24 L/yr |
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Software Engineer
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| ₹5 L/yr - ₹18.1 L/yr |
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| ₹3 L/yr - ₹8 L/yr |
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Associate
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