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SevenMentor Hadoop Trainer Interview Questions and Answers
SevenMentor Hadoop Trainer Interview Experiences
1 interview found
Anonymous
Interview Questionnaire
2 Questions
- Q1. What is bucketing and partition?
- Ans.
Bucketing is a technique in Hadoop that groups data into buckets based on a specific column, while partitioning divides data into logical units based on a specific column.
Bucketing is used to evenly distribute data across multiple files or directories.
Partitioning is used to organize data based on a specific column, making it easier to query and analyze.
Bucketing and partitioning can be used together to optimize data s...
- Q2. Explain map reduce process?
- Ans.
MapReduce is a programming model used to process large datasets in parallel.
MapReduce divides the input data into chunks and processes them in parallel.
Map function processes each chunk and produces intermediate key-value pairs.
Reduce function aggregates the intermediate results and produces final output.
MapReduce is used in Hadoop for distributed processing of large datasets.
Example: Counting the frequency of words in
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I applied via Naukri.com and was interviewed in Mar 2021. There was 1 interview round.
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1 Question
- Q1. Previous role
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Stick to the point of discussion only
I appeared for an interview before May 2021.
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Interview Questionnaire
1 Question
- Q1. Any type of questions in data field
I applied via Recruitment Consultant and was interviewed in Jan 2021. There was 1 interview round.
Interview Questionnaire
2 Questions
- Q1. Why should we hire you?
- Q2. Please tell me about the machine learning projects you have done
- Ans.
I have worked on several machine learning projects, including image recognition and natural language processing.
Developed an image recognition model using convolutional neural networks
Implemented a natural language processing algorithm for sentiment analysis
Collaborated on a recommendation system using collaborative filtering
Applied machine learning techniques to predict customer churn in a telecom company
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I applied via Naukri.com and was interviewed before Sep 2021. There were 2 interview rounds.
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I applied via LinkedIn and was interviewed before Sep 2021. There were 3 interview rounds.
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I applied via Campus Placement and was interviewed in Jan 2024. There were 2 interview rounds.
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I applied via Campus Placement and was interviewed before Mar 2023. There was 1 interview round.
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