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Fino Paytech Pyspark Developer Interview Questions and Answers
Fino Paytech Pyspark Developer Interview Experiences
1 interview found
Selected
I applied via Recruitment Consulltant and was interviewed in Jun 2024. There was 1 interview round.
(7 Questions)
- Q1. Hadoop architecture
- Q2. Spark architecture
- Q3. Difference between stage and task
- Ans.
A stage is a collection of tasks that perform a specific computation, while a task is a unit of work that is executed on a single executor.
Stage is a higher-level unit of work that can be broken down into multiple tasks.
Tasks are individual units of work that are executed on a single executor.
Stages are used to organize and coordinate tasks in a Spark job.
Tasks are the actual units of computation that are performed by ...
- Q4. Sql questions to solve
- Q5. Scoop
- Q6. Action and transformation in pysaprk
- Ans.
Actions and transformations are two types of operations in PySpark. Actions return a value to the driver program, while transformations create a new RDD.
Actions are operations that trigger the execution of the Spark job, such as collect(), count(), and saveAsTextFile().
Transformations are operations that create a new RDD from an existing one, such as map(), filter(), and reduceByKey().
Actions are lazy operations, meani...
- Q7. Difference between rdd and dataframe
- Ans.
RDD is a distributed collection of objects, while DataFrame is a distributed collection of data organized into named columns.
RDD is more low-level and requires manual schema definition, while DataFrame provides a higher-level API with schema inference.
DataFrames are optimized for processing structured data, while RDDs are more suitable for unstructured data.
DataFrames support SQL queries and optimizations through Catal...
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I applied via Campus Placement and was interviewed in Oct 2024. There were 3 interview rounds.
Asked questions of finance and aptitude
(3 Questions)
- Q1. What is machine learning?
- Ans.
Machine learning is a branch of artificial intelligence that involves developing algorithms and models that enable computers to learn from and make predictions or decisions based on data.
Machine learning is a subset of artificial intelligence that focuses on developing algorithms that can learn from and make predictions or decisions based on data.
It involves training models on large datasets to recognize patterns and m...
- Q2. What do you know about SQL?
- Ans.
SQL is a programming language used for managing and manipulating relational databases.
SQL stands for Structured Query Language
It is used to retrieve and manipulate data in relational databases
Common SQL commands include SELECT, INSERT, UPDATE, DELETE
SQL can be used to create tables, indexes, and views
Examples of SQL databases include MySQL, PostgreSQL, Oracle
- Q3. What you know about software Development?
- Ans.
Software development involves creating, designing, testing, and maintaining software applications.
Software development includes coding, testing, debugging, and documenting software applications.
Developers use programming languages like Java, Python, C++, etc. to write code.
Agile and Waterfall are common software development methodologies.
Version control systems like Git are used to manage code changes.
Software developm...
(2 Questions)
- Q1. What are the algorithms you know in machine learning and their details ?
- Ans.
Various machine learning algorithms with brief details
Supervised Learning: Linear Regression, Logistic Regression, Support Vector Machines (SVM), Decision Trees, Random Forest
Unsupervised Learning: K-means Clustering, Hierarchical Clustering, Principal Component Analysis (PCA)
Reinforcement Learning: Q-Learning, Deep Q-Networks (DQN)
Neural Networks: Convolutional Neural Networks (CNN), Recurrent Neural Networks (RNN), L
- Q2. Python questions
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Skills evaluated in this interview
Selected
I applied via Recruitment Consulltant and was interviewed in Mar 2024. There were 3 interview rounds.
(3 Questions)
- Q1. 1)Project related,
- Q2. What is the Polymorphism?
- Ans.
Polymorphism is the ability of a function or method to behave differently based on the object it is acting upon.
Polymorphism allows objects of different classes to be treated as objects of a common superclass.
There are two types of polymorphism: compile-time (method overloading) and runtime (method overriding).
Example: Inheritance in object-oriented programming languages like Java allows for polymorphism.
- Q3. What is RestController?
- Ans.
RestController is a class in Spring framework used to handle HTTP requests and return responses as JSON or XML.
Handles HTTP requests in Spring framework
Returns responses as JSON or XML
Annotate a class with @RestController to define it as a RestController
Example: @RestController public class UserController {}
Find the number of occurrences of each element in the given ArrayList
(1 Question)
- Q1. Discussion with hr like reason to switch.
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Skills evaluated in this interview
(2 Questions)
- Q1. Tell me something about yourself
- Q2. Tell about the recent project that you have worked upon
(2 Questions)
- Q1. What are your salary expectations?
- Q2. Why are you looking fir change
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I was interviewed in Feb 2024.
1 hour coding test on intermediate python programming
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Selected
I applied via Recruitment Consulltant and was interviewed in Sep 2022. There were 2 interview rounds.
(3 Questions)
- Q1. Question on c, like storage classes
- Q2. Can communication protocol, UDS protocol.
- Q3. C coding on pointers.
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(2 Questions)
- Q1. It was more related to my projects
- Q2. Asked questions on PCA,KNN and Elbow method .
(2 Questions)
- Q1. Asked SVM and Logistic regression, their applications and real life uses
- Q2. Matrix formation of a knockout Tournament
Data Analyst Interview Questions & Answers
Cholamandalam Investment & Finance
Anonymous
posted on 16 Feb 2024
Selected
I applied via Campus Placement and was interviewed in Aug 2023. There were 2 interview rounds.
Asked questions from python and SQL
(2 Questions)
- Q1. What are tupples
- Ans.
Tuples are ordered collections of elements, similar to lists but immutable.
Tuples are created using parentheses ()
Elements in a tuple can be of different data types
Tuples are immutable, meaning their elements cannot be changed once created
- Q2. What is credit risk
- Ans.
Credit risk refers to the potential loss that a lender may incur due to a borrower's failure to repay a loan or meet their financial obligations.
Credit risk is the risk of default on a debt that may arise from a borrower failing to make required payments.
It is a key consideration for banks and financial institutions when lending money.
Factors that contribute to credit risk include the borrower's credit history, financi...
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Skills evaluated in this interview
I applied via LinkedIn and was interviewed in Apr 2023. There were 3 interview rounds.
Mcq related to dsa ,oops
(1 Question)
- Q1. Just basic oops questions about polymorphism,inheritance
Selected
I applied via Naukri.com and was interviewed before Feb 2023. There were 3 interview rounds.
(2 Questions)
- Q1. What is your current role ?
- Q2. Why are you looking for a job change?
(1 Question)
- Q1. Python based list iteration, SQL join based questions
(1 Question)
- Q1. What are the project you have worked upon ?
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