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Virtusa Consulting Services Senior Data Engineer Interview Questions and Answers
Virtusa Consulting Services Senior Data Engineer Interview Experiences
2 interviews found
rayi ajay
Selected
I applied via Naukri.com and was interviewed in Jun 2024. There were 3 interview rounds.
(2 Questions)
- Q1. More questions on spark and java
- Q2. More questions on sql
(2 Questions)
- Q1. Over all project architecture
- Q2. Sample data and its transformations
- Ans.
Sample data and its transformations
Sample data can be in the form of CSV, JSON, or database tables
Transformations include cleaning, filtering, aggregating, and joining data
Examples: converting date formats, removing duplicates, calculating averages
(1 Question)
- Q1. Why are u leaving current job
- Ans.
Seeking new challenges and opportunities for growth in a more dynamic environment.
Looking for new challenges and opportunities for growth
Seeking a more dynamic work environment
Interested in expanding skill set and knowledge
Want to work on more innovative projects
Selected
I applied via LinkedIn and was interviewed in Apr 2024. There was 1 interview round.
(2 Questions)
- Q1. What do you know about Spark architecture?
- Ans.
Spark architecture is based on a master-slave architecture with a cluster manager to coordinate tasks.
Spark architecture consists of a driver program that communicates with a cluster manager to coordinate tasks.
The cluster manager allocates resources and schedules tasks on worker nodes.
Worker nodes execute the tasks and return results to the driver program.
Spark supports various cluster managers like YARN, Mesos, and s...
- Q2. How many stages will be created if a spark job has 3 wide transformations and 2 narrow transformations?
- Ans.
There will be 4 stages created in total for the spark job.
Wide transformations trigger a shuffle and create a new stage.
Narrow transformations do not trigger a shuffle and do not create a new stage.
In this case, 3 wide transformations will create 3 new stages and 2 narrow transformations will not create new stages.
Therefore, a total of 4 stages will be created.
Interview Preparation Tips
- Spark
- Python
- SQL
Skills evaluated in this interview
Interview questions from similar companies
I applied via Recruitment Consulltant and was interviewed before Jun 2021. There was 1 interview round.
(2 Questions)
- Q1. Where do we use BigInteger in java ?
- Ans.
BigInteger is used for mathematical operations involving very large integers in Java.
BigInteger is used when the range of values supported by primitive data types like int and long is not sufficient.
It is commonly used in cryptography and security applications.
It provides methods for arithmetic, bitwise, and logical operations on large integers.
Example: calculating factorial of a large number, generating large prime nu
- Q2. Merge Sort Algo code in java
- Ans.
Merge Sort Algo code in java
Divide the array into two halves
Recursively sort the two halves
Merge the sorted halves
Time complexity: O(n log n)
Interview Preparation Tips
- Core Java
- DSA
Skills evaluated in this interview
I applied via Naukri.com and was interviewed in Mar 2021. There were 3 interview rounds.
Interview Questionnaire
1 Question
- Q1. Applied for QA position. Questions were asked based on capital market/banking domain along with testing fundamentals and some scenario based question.
Interview Preparation Tips
Interview Questionnaire
2 Questions
- Q1. About AWS and Cloud related services.
- Q2. NA
Interview Questionnaire
2 Questions
- Q1. How can we remove duplicate objects from array of multiple objects.
- Ans.
Remove duplicate objects from an array of multiple objects.
Create a new array to store unique objects
Loop through the original array and check if the object already exists in the new array
If not, add it to the new array
Return the new array
- Q2. How to maintain state if code if repeated one.
- Ans.
Maintain state by using a global variable or a state management system.
Use a global variable to store the state and access it whenever needed.
Use a state management system like Redux or MobX to manage the state.
Avoid using local variables or closures to store state as they will be lost when the code is repeated.
Consider using object-oriented programming principles to encapsulate state within objects.
Use functional prog...
Interview Questionnaire
3 Questions
- Q1. Basic questions on OOP, Android system
- Q2. Design patterns in android system
- Ans.
Design patterns are reusable solutions to common software problems. Android system uses various design patterns.
MVC (Model-View-Controller) pattern is used in Android to separate UI logic from business logic.
Singleton pattern is used to ensure only one instance of a class is created.
Observer pattern is used to notify changes in data to multiple components.
Builder pattern is used to simplify complex object creation.
Adap...
- Q3. Dependency injection, SOLID
Skills evaluated in this interview
Interview Questionnaire
1 Question
- Q1. Prepare below topics
Interview Preparation Tips
Oops
Multi threading
Collections
Executors framework
Java 8 features
Software Engineer Interview Questions & Answers
Optum Global Solutions
Anonymous
posted on 5 Feb 2021
Interview Questionnaire
1 Question
- Q1. Mainframe questions, some direct and some scenario based.
Interview Preparation Tips
1. Technical ( lasted for 1 hour)
2. Techno manageria( 30 mins)
3. HR(30 mins)
Project based questions and scenario based questions were asked.
Hike was also good.
I applied via Recruitment Consulltant and was interviewed before Jul 2021. There were 3 interview rounds.
(1 Question)
- Q1. Question related to API
(1 Question)
- Q1. Previous Project Related Question. Design & SQL Question
- Ans. Relatedt Question Design & Sql sdf
Interview Preparation Tips
- API
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