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Tata Motors Marine Captain / Master Mariner Interview Questions and Answers
Tata Motors Marine Captain / Master Mariner Interview Experiences
1 interview found
I applied via Referral and was interviewed in Mar 2021. There were 4 interview rounds.
Interview Questionnaire
1 Question
- Q1. Why does the stones held in the railway tracks?
- Ans.
Stones are held in railway tracks to provide stability and support to the tracks.
Prevents lateral movement of tracks
Distributes weight of trains evenly
Reduces wear and tear on tracks
Allows for drainage of water
Helps with maintenance and repairs
Examples: ballast stones, crushed rocks, gravel
Interview Preparation Tips
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Interview questions from similar companies
Vaishnavi Singh
2 codes were there and it was really easy
(2 Questions)
- Q1. Types of data structures in python
- Ans.
Python has various data structures like lists, tuples, dictionaries, sets, etc.
Lists: Ordered, mutable, allows duplicate elements. Example: [1, 2, 3]
Tuples: Ordered, immutable, allows duplicate elements. Example: (1, 2, 3)
Dictionaries: Unordered, mutable, key-value pairs. Example: {'key': 'value'}
Sets: Unordered, mutable, unique elements. Example: {1, 2, 3}
- Q2. Structures of hadoop
- Ans.
Hadoop is a framework for distributed storage and processing of large data sets across clusters of computers.
Hadoop consists of HDFS (Hadoop Distributed File System) for storage and MapReduce for processing.
Hadoop uses a master-slave architecture with a single NameNode (master) and multiple DataNodes (slaves).
Hadoop ecosystem includes tools like Hive, Pig, Spark, and HBase for different data processing tasks.
Hadoop is ...
Skills evaluated in this interview
Ilyas Qazi
(2 Questions)
- Q1. Project exaination
- Q2. Behviaoural questions
I applied via Job Portal and was interviewed before Jun 2023. There was 1 interview round.
(2 Questions)
- Q1. Data partitioning
- Q2. Data clustering
Interview Preparation Tips
Data Engineer Interview Questions & Answers
Renault Nissan Technology & Business Centre India
Anonymous
posted on 13 Jul 2022
I applied via campus placement at Great Lakes Institute of management, Chennai and was interviewed before Jul 2021. There were 2 interview rounds.
Interview will be on basic knowledge w.r.t python it is regarding lists, tuples etc..,
Regarding SQL interview is also basic.
(2 Questions)
- Q1. Regarding the company
- Q2. Regarding future studies
Interview Preparation Tips
- SQL
- Python
If you do not understand the problem you can ask the proctor to repeat the question and speak your mind
Selected
I applied via Campus Placement and was interviewed before Apr 2023. There were 2 interview rounds.
Its consists of total 50 mcq questions.
(1 Question)
- Q1. Here they asked me technical question from the machine learning, SQL, and project mention in CV.
Interview Preparation Tips
Grishma Modi
(1 Question)
- Q1. Explain about your experience
- Ans.
I have 5 years of experience working as a Data Engineer in various industries.
Developed and maintained ETL pipelines to extract, transform, and load data from various sources
Designed and implemented data models to support business requirements
Optimized database performance and ensured data quality and integrity
Worked with cross-functional teams to analyze data and provide insights for decision-making
Proficient in progr...
I applied via campus placement at Vellore Institute of Technology (VIT) and was interviewed in Dec 2022. There were 4 interview rounds.
Python, SQL, Word, Powe point and Excel
(1 Question)
- Q1. Tell about any project that you worked with data How do clean dirty data
- Ans.
I worked on a project to clean dirty data
Identify and understand the data quality issues
Remove duplicate records
Handle missing values by imputation or deletion
Standardize and normalize data formats
Correct inconsistent or inaccurate data
Validate data against predefined rules or constraints
Perform data profiling and outlier detection
Implement data validation checks during data ingestion
Use data cleaning tools and techniq...
(1 Question)
- Q1. About this company why this company about family day to day activities
Interview Preparation Tips
Selected
I applied via Approached by Company and was interviewed in Jul 2023. There were 2 interview rounds.
(2 Questions)
- Q1. Separate integers and characters from a given string
- Ans.
Separate integers and characters from a given string
Iterate through each character in the string
Check if the character is a digit or a letter
Store the digits and letters in separate arrays
- Q2. Some SQL questions
(1 Question)
- Q1. About previous/current project
Skills evaluated in this interview
I was interviewed in Aug 2021.
Interview Questionnaire
1 Question
- Q1. How to reduce shuffling
- Ans.
Shuffling can be reduced by optimizing data partitioning and minimizing data movement.
Use partitioning techniques like bucketing and sorting to minimize shuffling
Avoid using wide transformations like groupBy and join
Use broadcast variables to reduce data movement
Optimize cluster configuration and resource allocation
Use caching and persistence to avoid recomputation
Consider using columnar storage formats like Parquet or
Interview Preparation Tips
Skills evaluated in this interview
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