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Decision Minds Data Engineer Interview Questions, Process, and Tips
Decision Minds Data Engineer Interview Experiences
1 interview found
Selected
(2 Questions)
- Q1. Internal and external tables
- Q2. What is Hive architecture
- Ans.
Hive architecture is a data warehousing system built on top of Hadoop for querying and analyzing large datasets.
Hive uses a SQL-like language called HiveQL for querying data stored in Hadoop Distributed File System (HDFS).
It consists of three main components: Metastore, Driver, and Execution Engine.
Metastore stores metadata about tables and partitions in a relational database.
Driver accepts HiveQL queries, compiles the...
(2 Questions)
- Q1. What are List and tuple
- Ans.
List and tuple are data structures in Python used to store collections of items.
Lists are mutable and can be modified after creation
Tuples are immutable and cannot be modified after creation
Lists are defined using square brackets []
Tuples are defined using parentheses ()
Lists are used for collections of similar items
Tuples are used for collections of different items
- Q2. SQL Queries on window functions
(2 Questions)
- Q1. How to remove duplicates
- Ans.
To remove duplicates, we can use various methods such as using sets, pandas, or SQL.
Using sets: Convert the list to a set and then back to a list
Using pandas: Use the drop_duplicates() method on a pandas dataframe
Using SQL: Use the DISTINCT keyword in a SELECT statement
Using hashable objects: Create a dictionary with the list elements as keys and then convert it back to a list
- Q2. Difference between Hive and Sql
- Ans.
Hive is a data warehousing tool for Hadoop while SQL is a language used to manage relational databases.
Hive is used for big data processing while SQL is used for relational databases.
Hive uses Hadoop Distributed File System (HDFS) while SQL uses traditional storage systems.
Hive queries are written in Hive Query Language (HQL) while SQL queries are written in Structured Query Language.
Hive is optimized for batch process...
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Software Engineer Interview Questions & Answers
IVTL Infoview Technologies
Anonymous
posted on 23 Feb 2022
I applied via Campus Placement and was interviewed before Feb 2021. There was 1 interview round.
(2 Questions)
- Q1. Define marker interface
- Ans.
A marker interface is an interface with no methods used to mark a class as having a particular property or behavior.
Marker interfaces are used to provide metadata about a class.
They are often used in frameworks and libraries to indicate that a class should be treated in a special way.
Examples include Serializable, Cloneable, and Remote interfaces in Java.
Marker interfaces can also be used to enforce design patterns, su
- Q2. Define thread concurrency
- Ans.
Thread concurrency refers to multiple threads executing simultaneously in a program.
Concurrency allows for efficient use of resources and can improve performance.
However, it can also lead to race conditions and other synchronization issues.
Synchronization mechanisms like locks and semaphores can be used to manage concurrency.
Examples of concurrent programming languages include Java and Python's threading module.
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Skills evaluated in this interview
I applied via Recruitment Consultant and was interviewed before Oct 2020. There were 3 interview rounds.
Interview Questionnaire
1 Question
- Q1. Python file handling, input,output, in a file, Sql joins, list sort in python, basics of GIS, Web service how to test
Interview Preparation Tips
I applied via Naukri.com and was interviewed in Mar 2021. There was 1 interview round.
Interview Questionnaire
1 Question
- Q1. C2H profile basic technology based question s only
Interview Preparation Tips
Software Engineer Interview Questions & Answers
IVTL Infoview Technologies
Anonymous
posted on 19 Jul 2024
Selected
I applied via Campus Placement and was interviewed in Jun 2024. There were 2 interview rounds.
Puzzles, speed, logical questions
(2 Questions)
- Q1. Self introduction
- Q2. Background and coding knowledge
Software Engineer Interview Questions & Answers
Apmosys Technologies
Anonymous
posted on 15 Feb 2022
I applied via Referral and was interviewed before Feb 2021. There were 3 interview rounds.
(1 Question)
- Q1. Tell me about yourself
(1 Question)
- Q1. 1 Project Explanation 2 SDLC & STLC. 3 Differentiate Smoke vs Sanity 4 What is Regression testing? 5 Bug life cycle. 6 Scenarios on real time example. 7 Questions on agile
- Ans.
Interview questions for Software Engineer position
Project explanation should include details on the project's purpose, scope, and technologies used
SDLC (Software Development Life Cycle) and STLC (Software Testing Life Cycle) are methodologies used in software development and testing respectively
Smoke testing is a type of testing that checks if the basic functionalities of the software are working fine, while Sanity tes...
(1 Question)
- Q1. All basic HR questions and salary discussion.
Software Engineer Interview Questions & Answers
Apmosys Technologies
Anonymous
posted on 28 May 2022
I applied via Recruitment Consulltant and was interviewed in Oct 2021. There were 3 interview rounds.
(1 Question)
- Q1. Completely on java
(1 Question)
- Q1. Asked java questiona
Software Engineer Interview Questions & Answers
Apmosys Technologies
Anonymous
posted on 22 Jul 2022
I applied via Referral and was interviewed before Jul 2021. There were 3 interview rounds.
(2 Questions)
- Q1. Tell me about your self
- Q2. Tell me if you have any past experience
(1 Question)
- Q1. Technical Question and basic knowledge in post which you are applied
Interview Preparation Tips
Selected
I applied via Walk-in and was interviewed in Dec 2022. There were 3 interview rounds.
(3 Questions)
- Q1. Related to Linux and Networking
- Q2. Services Samba FTP, Maintenance Mode
- Q3. Troubleshooting of Network
- Ans.
Troubleshooting network involves identifying and resolving issues related to network connectivity and performance.
Start by identifying the symptoms of the problem
Check network cables and connections
Verify network settings and configurations
Use network diagnostic tools to identify and isolate the problem
Resolve the issue by applying appropriate fixes
Test the network to ensure the problem is resolved
(2 Questions)
- Q1. Qts related to Bootprocess AWS etc
- Q2. Port Forwarding of services
Interview Preparation Tips
Skills evaluated in this interview
Software Engineer Interview Questions & Answers
Apmosys Technologies
kanak Thakur
posted on 17 Oct 2023
I applied via Campus Placement and was interviewed in Sep 2023. There were 3 interview rounds.
Aptitude test reasoning test 30 questions and technical part 30 questions
(2 Questions)
- Q1. OOPS concept , constructor destructor , their types , SQL, DBMS , projects written in resume and their flow charts
- Q2. Programs of method overloading and overriding , programs of for loop while loop and when we use them And so on
- Ans.
Method overloading and overriding are used in object-oriented programming to create multiple methods with the same name but different parameters or implementations. For and while loops are used for iteration in programming.
Method overloading involves creating multiple methods in the same class with the same name but different parameters. Example: void print(int num) and void print(String str)
Method overriding involves ...
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Decision Minds Data Engineer Interview Process
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