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Octro Data Engineer Interview Questions and Answers
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1 interview found
I applied via Campus Placement and was interviewed in Jul 2024. There were 2 interview rounds.
70 Technical and Aptitude mcqs to solve in 50 minutes
(2 Questions)
- Q1. What is overloading and overriding?
- Ans.
Overloading is having multiple methods with the same name but different parameters. Overriding is implementing a method in a subclass that is already defined in the parent class.
Overloading allows a class to have multiple methods with the same name but different parameters.
Overriding occurs when a subclass provides a specific implementation of a method that is already provided by its parent class.
Overloading is resolve...
- Q2. What is difference between Primary and unique key in dbms?
- Ans.
Primary key uniquely identifies a record in a table, while unique key ensures all values in a column are distinct.
Primary key does not allow NULL values, while unique key allows one NULL value.
A table can have only one primary key, but multiple unique keys.
Primary key is a combination of unique and not null constraints.
Primary key is used to establish relationships between tables, while unique key is used to enforce un
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- OOPS
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I applied via Naukri.com and was interviewed in Aug 2022. There were 2 interview rounds.
(1 Question)
- Q1. 1) Optimizations techniques used while working on Spark and hive. 2) difference between partitioning and bucketing 3) How to add column in Data frame 4) Difference between cache and persistent
- Ans.
Answers to questions related to Spark, Hive, and Data Frames
Optimization techniques in Spark and Hive include partitioning, bucketing, and caching
Partitioning divides data into smaller, more manageable chunks while bucketing groups data based on a specific column
Adding a column to a Data Frame can be done using the 'withColumn' method
Caching stores data in memory for faster access while persistence stores data on disk
(1 Question)
- Q1. All questions related to current and previous projects. What is mean by ETL Day to day responsibilities
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Selected
I applied via Approached by Company and was interviewed in Jul 2024. There was 1 interview round.
(1 Question)
- Q1. Study & Personal projects
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Softwaretest Engineer Interview Questions & Answers
Yalamanchili Software Exports
Anonymous
posted on 5 Sep 2024
I applied via Job Fair and was interviewed in Aug 2024. There was 1 interview round.
(4 Questions)
- Q1. Introducing your self and project
- Q2. Severity and priority
- Q3. Smoke and sanity testing
- Q4. Scenario base question if find bug before release
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General mathematics, pseudo code.
Time: 30min
GD: lead tech concepts
Select a primary coding language and ensure that the fundamental concepts are well understood.
Selected
I applied via Naukri.com and was interviewed in Oct 2024. There was 1 interview round.
Logical reasoning 20 character
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- Advanced Excel SQL
I applied via Company Website and was interviewed in Aug 2024. There was 1 interview round.
Write a code for HTML DOM
Selected
I applied via LinkedIn and was interviewed in Feb 2023. There were 5 interview rounds.
(1 Question)
- Q1. Questions asked from data science and computer vision
Computer vision related project I got as assignment
(1 Question)
- Q1. Puzzles and some technical questions are asked
(1 Question)
- Q1. In office interview and salary discussion
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Senior Software Engineer Interview Questions & Answers
Avekshaa Technologies
Anonymous
posted on 17 Dec 2024
Selected
I applied via Referral and was interviewed before Dec 2023. There were 4 interview rounds.
Normal Aptitude Test
Basic java coding questions
(2 Questions)
- Q1. Manager round with all your Projects done
- Q2. Projects which you been worked on
- Ans.
I have worked on projects involving web development, mobile app development, and data analysis.
Developed a web application using React and Node.js for a client in the e-commerce industry
Built a mobile app using Flutter for a startup in the travel sector
Performed data analysis using Python and SQL to optimize marketing strategies for a healthcare company
(1 Question)
- Q1. Personal details
Senior Software Engineer Interview Questions & Answers
ABM Techno-Matrix Private Limited
Anonymous
posted on 17 Aug 2024
Selected
I applied via Approached by Company and was interviewed before Aug 2023. There were 2 interview rounds.
(2 Questions)
- Q1. What programming language are you most proficient?
- Ans.
I am most proficient in Java.
Extensive experience in developing applications using Java
Strong understanding of object-oriented programming principles
Familiarity with popular Java frameworks like Spring and Hibernate
- Q2. .NET, Angular and Sql Server
(1 Question)
- Q1. How would you design a system that needs to handle million of records
- Ans.
I would design a system using scalable architecture, efficient data storage, and optimized query processing.
Utilize a distributed database system like Cassandra or Hadoop for storing large volumes of data
Implement data partitioning and sharding to distribute the data across multiple servers
Use indexing and caching mechanisms to optimize query performance
Employ load balancing techniques to evenly distribute incoming req...
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