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DXC Technology Pyspark Developer Interview Questions and Answers

Updated 1 Feb 2024

DXC Technology Pyspark Developer Interview Experiences

1 interview found

Interview experience
4
Good
Difficulty level
Moderate
Process Duration
2-4 weeks
Result
No response

I applied via Naukri.com and was interviewed in Jan 2024. There were 2 interview rounds.

Round 1 - Coding Test 

Basic python coding, list, dict, generators etc

Round 2 - HR 

(1 Question)

  • Q1. Salary negotiation

Interview Preparation Tips

Topics to prepare for DXC Technology Pyspark Developer interview:
  • Python
  • Spark
  • RDD
  • SQL
Interview preparation tips for other job seekers - Code well

Interview questions from similar companies

Interview experience
4
Good
Difficulty level
Moderate
Process Duration
Less than 2 weeks
Result
No response

I applied via Walk-in and was interviewed in Nov 2024. There were 3 interview rounds.

Round 1 - One-on-one 

(2 Questions)

  • Q1. What are the optimization techniques used in Apache Spark?
  • Ans. 

    Optimization techniques in Apache Spark improve performance and efficiency.

    • Partitioning data to distribute work evenly

    • Caching frequently accessed data in memory

    • Using broadcast variables for small lookup tables

    • Optimizing shuffle operations by reducing data movement

    • Applying predicate pushdown to filter data early

  • Answered by AI
  • Q2. What is the difference between coalesce and repartition, as well as between cache and persist?
  • Ans. 

    Coalesce reduces the number of partitions without shuffling data, while repartition increases the number of partitions by shuffling data. Cache and persist are used to persist RDDs in memory.

    • Coalesce is used to reduce the number of partitions without shuffling data, while repartition is used to increase the number of partitions by shuffling data.

    • Coalesce is more efficient when reducing partitions as it avoids shuffling...

  • Answered by AI
Round 2 - One-on-one 

(2 Questions)

  • Q1. What is the SQL query to find the second highest rank in a dataset?
  • Ans. 

    SQL query to find the second highest rank in a dataset

    • Use the ORDER BY clause to sort the ranks in descending order

    • Use the LIMIT and OFFSET clauses to skip the highest rank and retrieve the second highest rank

    • Example: SELECT rank FROM dataset ORDER BY rank DESC LIMIT 1 OFFSET 1

  • Answered by AI
  • Q2. What is the SQL code for calculating year-on-year growth percentage with year-wise grouping?
  • Ans. 

    The SQL code for calculating year-on-year growth percentage with year-wise grouping.

    • Use the LAG function to get the previous year's value

    • Calculate the growth percentage using the formula: ((current year value - previous year value) / previous year value) * 100

    • Group by year to get year-wise growth percentage

  • Answered by AI
Round 3 - One-on-one 

(2 Questions)

  • Q1. What tools are used to connect Google Cloud Platform (GCP) with Apache Spark?
  • Ans. 

    To connect Google Cloud Platform with Apache Spark, tools like Dataproc, Cloud Storage, and BigQuery can be used.

    • Use Google Cloud Dataproc to create managed Spark and Hadoop clusters on GCP.

    • Store data in Google Cloud Storage and access it from Spark applications.

    • Utilize Google BigQuery for querying and analyzing large datasets directly from Spark.

  • Answered by AI
  • Q2. What is the process to orchestrate code in Google Cloud Platform (GCP)?
  • Ans. 

    Orchestrating code in GCP involves using tools like Cloud Composer or Cloud Dataflow to schedule and manage workflows.

    • Use Cloud Composer to create, schedule, and monitor workflows using Apache Airflow

    • Utilize Cloud Dataflow for real-time data processing and batch processing tasks

    • Use Cloud Functions for event-driven serverless functions

    • Leverage Cloud Scheduler for job scheduling

    • Integrate with other GCP services like BigQ...

  • Answered by AI

Interview Preparation Tips

Topics to prepare for Cognizant Pyspark Developer interview:
  • sql
  • spark
  • python
  • Cloud
Interview preparation tips for other job seekers - It is essential to prepare thoroughly before the interview.
Interview experience
4
Good
Difficulty level
Moderate
Process Duration
Less than 2 weeks
Result
No response

I applied via Naukri.com and was interviewed in Sep 2024. There was 1 interview round.

Round 1 - Coding Test 

1. Find duplicate
2. 2,3 highest salary

Interview experience
3
Average
Difficulty level
-
Process Duration
-
Result
-
Round 1 - Technical 

(1 Question)

  • Q1. Conceptual questions
Interview experience
2
Poor
Difficulty level
Moderate
Process Duration
2-4 weeks
Result
Selected Selected

I was interviewed before Sep 2021.

Round 1 - Technical 

(2 Questions)

  • Q1. Can you tell me about yourself?
  • Q2. What do you know about the Order to Cash (O2C) process?
Round 2 - One-on-one 

(1 Question)

  • Q1. How would you handle a situation in which you receive a difficult query or escalation from a customer?
Interview experience
5
Excellent
Difficulty level
Easy
Process Duration
Less than 2 weeks
Result
Selected Selected
Round 1 - Technical 

(2 Questions)

  • Q1. Previous projects
  • Q2. Spring boot annotations
Round 2 - One-on-one 

(2 Questions)

  • Q1. Coding round swap two numbers without using third variable
  • Q2. Salary expectations
Interview experience
3
Average
Difficulty level
Hard
Process Duration
Less than 2 weeks
Result
Not Selected

I applied via Referral and was interviewed in Dec 2024. There were 2 interview rounds.

Round 1 - Technical 

(3 Questions)

  • Q1. Run time polymorphism code
  • Q2. Linked list code
  • Q3. Deep copy shallow copy differences
  • Ans. 

    Deep copy creates a new copy of an object with its own unique memory space, while shallow copy creates a new object that references the same memory locations as the original object.

    • Deep copy duplicates all nested objects, while shallow copy only duplicates the references to nested objects.

    • Deep copy ensures that changes to the copied object do not affect the original object, while shallow copy may lead to unintended sid...

  • Answered by AI
Round 2 - Technical 

(2 Questions)

  • Q1. More deep questions about polymorphism code
  • Q2. Code for interchange of strings without strcpy
  • Ans. 

    Use a loop to swap characters of two strings without using strcpy function.

    • Create two arrays of characters to store the strings

    • Use a loop to iterate through each character of the strings and swap them

    • Ensure to handle cases where strings have different lengths

  • Answered by AI

Interview Preparation Tips

Interview preparation tips for other job seekers - please prepare oops concept and data structure well because its easy for first round but for second round its too difficult - the interviewer was so irritating and asked very stupid wuestions
Interview experience
3
Average
Difficulty level
Easy
Process Duration
Less than 2 weeks
Result
Selected Selected

I was interviewed in Dec 2024.

Round 1 - One-on-one 

(5 Questions)

  • Q1. Introduction about me any question
  • Ans. 

    I am chandana i am bca graduated

  • Answered Anonymously
  • Q2. About job bases
  • Ans. 

    How to developed a skill to improve over skills

  • Answered Anonymously
  • Q3. Salary based question
  • Ans. 

    I am fresher to 2 to 4

  • Answered Anonymously
  • Q4. How to completed
  • Q5. Job description

Interview Preparation Tips

Interview preparation tips for other job seekers - No i am fresher to search the job
Interview experience
5
Excellent
Difficulty level
-
Process Duration
-
Result
-
Round 1 - Technical 

(2 Questions)

  • Q1. Explain architecture of your project
  • Q2. Some questions on Java, Spring Boot and sql
Round 2 - Technical 

(2 Questions)

  • Q1. Project flow and some behavioural questions
  • Q2. Project contribution of yours
  • Ans. 

    Developed a web application for tracking employee attendance and performance

    • Implemented user authentication and authorization using Spring Security

    • Utilized Hibernate for database interaction and data persistence

    • Designed and developed RESTful APIs for frontend integration

    • Used AngularJS for frontend development to create interactive user interfaces

  • Answered by AI
Round 3 - HR 

(1 Question)

  • Q1. Basic formalities before offer release

Interview Preparation Tips

Interview preparation tips for other job seekers - Understand your project properly and have your basic of programming very clear
Interview experience
3
Average
Difficulty level
-
Process Duration
-
Result
-
Round 1 - Coding Test 

Aptitude, core concepts and a code

Round 2 - HR 

(2 Questions)

  • Q1. What is the one thing you learnt from college club?
  • Ans. 

    I learned the importance of teamwork and collaboration from my college club.

    • Developed strong communication skills by working with diverse group of individuals

    • Learned how to delegate tasks effectively to achieve common goals

    • Gained experience in problem-solving and conflict resolution through group projects

  • Answered by AI
  • Q2. What is the one thing you want to expereince?
  • Ans. 

    I want to experience living in a different country and immersing myself in a new culture.

    • Traveling to a foreign country and learning about their customs and traditions

    • Trying new foods and experiencing different ways of life

    • Making friends with locals and exploring the local attractions

  • Answered by AI
Round 3 - Technical 

(3 Questions)

  • Q1. Difference between relational and non relational dbms
  • Ans. 

    Relational DBMS stores data in tables with predefined relationships, while non-relational DBMS stores data in flexible, schema-less formats.

    • Relational DBMS uses structured query language (SQL) for querying data

    • Non-relational DBMS can store data in various formats like key-value pairs, document-based, graph databases

    • Relational DBMS ensures data integrity through normalization and constraints

    • Non-relational DBMS offers be...

  • Answered by AI
  • Q2. Difference betweeen class,abstract class,interface in python
  • Ans. 

    Class is a blueprint for creating objects, abstract class cannot be instantiated and can have abstract methods, interface is a contract for classes to implement certain methods.

    • Class is a blueprint for creating objects with attributes and methods.

    • Abstract class cannot be instantiated and can have abstract methods that must be implemented by subclasses.

    • Interface is a contract for classes to implement certain methods, bu

  • Answered by AI
  • Q3. Project related questions were asked

Skills evaluated in this interview

DXC Technology Interview FAQs

How many rounds are there in DXC Technology Pyspark Developer interview?
DXC Technology interview process usually has 2 rounds. The most common rounds in the DXC Technology interview process are Coding Test and HR.

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DXC Technology Pyspark Developer Interview Process

based on 1 interview

Interview experience

4
  
Good
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