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SwiftWIN Technologies Software Developer Interview Questions and Answers
8 Interview questions
Developed a web application for a retail company to manage their inventory and sales.
Used React.js for the front-end and Node.js for the back-end
Implemented a database schema using MongoDB
Integrated Stripe API for payment processing
Implemented user authentication and authorization using JWT
Optimized application performance by implementing caching and lazy loading
ref is used for passing reference types by reference, out is used for returning values by reference.
Use ref when you want to modify the value of the parameter inside the method
Use out when you want to return multiple values from a method
ref requires the variable to be initialized before passing it to the method, out does not
ref can be used with both value and reference types, out can only be used with reference ty...
LINQ allows for easy querying of collections, including performing left joins to combine data from different sources.
Use 'GroupJoin' to perform a left join in LINQ.
Example: var result = from a in tableA join b in tableB on a.Id equals b.AId into temp from b in temp.DefaultIfEmpty() select new { a, b };
The 'DefaultIfEmpty()' method ensures that even if there are no matches in tableB, records from tableA are still i...
Authentication is the process of verifying the identity of a user, while authorization is the process of granting access to specific resources.
Authentication confirms the user's identity through credentials such as username and password.
Authorization determines what resources the user can access based on their role or permissions.
Authentication precedes authorization in the security process.
Examples of authenticat...
Middleware in .NET Core is a pipeline of components that handle requests and responses.
Middleware is added to the pipeline using the Use() method in Startup.cs
Middleware can modify the request or response, or pass it on to the next component in the pipeline
Examples of middleware include authentication, logging, and error handling
Index in SQL Server is used to improve query performance. There are different types of indexes.
Clustered index: sorts and stores data rows in the table based on their key values
Non-clustered index: contains a separate structure with the indexed columns and a pointer to the data rows
Unique index: ensures that the indexed columns contain unique values
Filtered index: indexes a subset of data rows based on a filter pr...
Constructors are special methods used to initialize objects in a class.
Default constructor: no arguments
Parameterized constructor: one or more arguments
Copy constructor: creates a new object as a copy of an existing object
Static constructor: initializes static variables
Private constructor: restricts object creation outside the class
OOPs concepts are fundamental to object-oriented programming. They include inheritance, encapsulation, abstraction, and polymorphism.
Inheritance: A child class can inherit properties and methods from a parent class. Example: A Car class can inherit from a Vehicle class.
Encapsulation: Hiding implementation details and exposing only necessary information. Example: A BankAccount class can hide the account balance.
Abs...
SwiftWIN Technologies Software Developer Interview Experiences
1 interview found
I applied via Referral and was interviewed before Sep 2021. There were 2 interview rounds.
(9 Questions)
- Q1. Applied via reference, Single round with TL, they ask questions on C#, SQL, and LINQ
- Q2. OOPs concepts with example
- Ans.
OOPs concepts are fundamental to object-oriented programming. They include inheritance, encapsulation, abstraction, and polymorphism.
Inheritance: A child class can inherit properties and methods from a parent class. Example: A Car class can inherit from a Vehicle class.
Encapsulation: Hiding implementation details and exposing only necessary information. Example: A BankAccount class can hide the account balance.
Abstract...
- Q3. LINQ joins, mostly how to write Left join
- Ans.
LINQ allows for easy querying of collections, including performing left joins to combine data from different sources.
Use 'GroupJoin' to perform a left join in LINQ.
Example: var result = from a in tableA join b in tableB on a.Id equals b.AId into temp from b in temp.DefaultIfEmpty() select new { a, b };
The 'DefaultIfEmpty()' method ensures that even if there are no matches in tableB, records from tableA are still includ...
- Q4. Authentication vs authorization
- Ans.
Authentication is the process of verifying the identity of a user, while authorization is the process of granting access to specific resources.
Authentication confirms the user's identity through credentials such as username and password.
Authorization determines what resources the user can access based on their role or permissions.
Authentication precedes authorization in the security process.
Examples of authentication i...
- Q5. Types of constructors
- Ans.
Constructors are special methods used to initialize objects in a class.
Default constructor: no arguments
Parameterized constructor: one or more arguments
Copy constructor: creates a new object as a copy of an existing object
Static constructor: initializes static variables
Private constructor: restricts object creation outside the class
- Q6. Index in sql server and types
- Ans.
Index in SQL Server is used to improve query performance. There are different types of indexes.
Clustered index: sorts and stores data rows in the table based on their key values
Non-clustered index: contains a separate structure with the indexed columns and a pointer to the data rows
Unique index: ensures that the indexed columns contain unique values
Filtered index: indexes a subset of data rows based on a filter predica...
- Q7. Last project and its related queries
- Ans.
Developed a web application for a retail company to manage their inventory and sales.
Used React.js for the front-end and Node.js for the back-end
Implemented a database schema using MongoDB
Integrated Stripe API for payment processing
Implemented user authentication and authorization using JWT
Optimized application performance by implementing caching and lazy loading
- Q8. Ref vs out in c# which to use
- Ans.
ref is used for passing reference types by reference, out is used for returning values by reference.
Use ref when you want to modify the value of the parameter inside the method
Use out when you want to return multiple values from a method
ref requires the variable to be initialized before passing it to the method, out does not
ref can be used with both value and reference types, out can only be used with reference types
- Q9. Middleware in .net core
- Ans.
Middleware in .NET Core is a pipeline of components that handle requests and responses.
Middleware is added to the pipeline using the Use() method in Startup.cs
Middleware can modify the request or response, or pass it on to the next component in the pipeline
Examples of middleware include authentication, logging, and error handling
(3 Questions)
- Q1. Why you choose swiftwin
- Q2. Salary expectation from us
- Q3. How soon can you join
Interview Preparation Tips
Skills evaluated in this interview
Top trending discussions
Interview questions from similar companies
Software Developer Interview Questions & Answers
Hestabit Technologies
Anonymous
posted on 8 Feb 2025
Selected
I appeared for an interview before Feb 2024.
(2 Questions)
- Q1. Basic behavioural and Technical questions
- Q2. What are the differences between Python 2 and Python 3, and how are comments used in Python? Additionally, can you describe your personal projects and group projects during your college studies?
- Ans.
Python 2 vs Python 3 differences, comments usage, and college projects
Python 2 is legacy, Python 3 is current version with improved syntax and features
Python 2 uses print as a statement, Python 3 uses print() as a function
Comments in Python start with # symbol and can be used to explain code or disable certain lines
Personal project: Developed a web scraping tool using Python to extract data from websites
Group project: ...
(2 Questions)
- Q1. Taken by Senior AI developer and CTO. It was an hour interview where they asked scenario based questions on RAG. And simple questions on ML and CNN too.
- Q2. Vector databases
Interview Preparation Tips
Ramesh
I applied via Recruitment Consulltant and was interviewed in May 2024. There were 3 interview rounds.
Logical reasoning and Aptitude
Functions with Pointers and strings concepts
(2 Questions)
- Q1. Mainly on Pointers and Dynamic Memory Allocation of 2-D Array
- Q2. Structure Padding and Packing
Interview Preparation Tips
It is easy and you can clear it.
It was moderate and hard questions
Interview Preparation Tips
Selected
I applied via Referral and was interviewed in Sep 2023. There were 3 interview rounds.
Very easy roundand is it a program to implement Parallel Merge Sort and can measure the performance
Coding and decoding reasoning for the shield season is over now I am not sure
Interview Preparation Tips
I applied via Naukri.com and was interviewed in Mar 2023. There were 2 interview rounds.
(5 Questions)
- Q1. What are oops concepts in java, explain real time scenario
- Ans.
OOPs concepts in Java include inheritance, polymorphism, encapsulation, and abstraction.
Inheritance allows a subclass to inherit properties and methods from a superclass.
Polymorphism allows objects to take on multiple forms and behave differently based on their context.
Encapsulation hides the implementation details of an object and only exposes necessary information.
Abstraction allows for the creation of abstract class...
- Q2. Uses of interface, inheritance
- Ans.
Interfaces define contracts for behavior, while inheritance allows for code reuse and polymorphism.
Interfaces allow for loose coupling and abstraction, enabling multiple implementations of the same behavior.
Inheritance allows for code reuse and extension of existing classes, reducing code duplication.
Polymorphism allows objects of different classes to be treated as if they were of the same class, simplifying code and i...
- Q3. SQL query for join of tables
- Ans.
SQL query for joining tables
Use JOIN keyword to combine two or more tables based on a related column
Specify the columns to be selected using SELECT keyword
Use ON keyword to specify the condition for joining the tables
Different types of joins include INNER JOIN, LEFT JOIN, RIGHT JOIN, and FULL OUTER JOIN
- Q4. Java concepts used in your project
- Ans.
Used Java concepts such as inheritance, polymorphism, and exception handling in my project.
Implemented inheritance to create a base class and derived classes with specific functionalities.
Utilized polymorphism to allow objects of different classes to be treated as if they were of the same class.
Implemented exception handling to handle errors and prevent program crashes.
Used interfaces to define a set of methods that a ...
- Q5. Overloading vs overriding, practical uses
- Ans.
Overloading is having multiple methods with the same name but different parameters. Overriding is having a method in a subclass with the same name and parameters as a method in the superclass.
Overloading is used to provide different ways to call a method with different parameters
Overriding is used to provide a specific implementation of a method in a subclass
Overloading is resolved at compile-time while overriding is r...
Interview Preparation Tips
- Core Java
- OOPS
- collection framework
- Database Management
Skills evaluated in this interview
Selected
I applied via Naukri.com and was interviewed in May 2024. There were 2 interview rounds.
(2 Questions)
- Q1. Linked list question to detect cycle
- Ans.
Detecting a cycle in a linked list using Floyd's Tortoise and Hare algorithm.
Use two pointers: slow and fast. Slow moves one step, fast moves two steps.
If there's a cycle, slow and fast will eventually meet.
If fast reaches the end (null), there's no cycle.
Example: In a list 1 -> 2 -> 3 -> 4 -> 2 (cycle), slow and fast meet at 2.
- Q2. Basic questions from JS
(2 Questions)
- Q1. Some questions related to my projects
- Q2. Some Questions related to my past experience
Ritika
I applied via Approached by Company and was interviewed in Jan 2024. There was 1 interview round.
(2 Questions)
- Q1. Map reduce filter in javascript
- Ans.
Map, reduce, and filter are higher-order functions in JavaScript used to manipulate arrays.
Map: Transforms each element in an array and returns a new array with the transformed elements.
Reduce: Reduces an array to a single value by applying a function to each element.
Filter: Creates a new array with elements that pass a certain condition.
- Q2. Exception handling
Skills evaluated in this interview
Moningi Ashwini
Selected
I applied via Company Website and was interviewed in Jul 2023. There were 4 interview rounds.
I have given the coding test in python language. Out of 5 questions, we have to attain a minimum of 3 questions.
(1 Question)
- Q1. The questions in technical round is related to the task which were given to us and also they ask basics questions related to technical.
(1 Question)
- Q1. The interview was about the personality check, overeally it was good .
Interview Preparation Tips
I applied via Campus Placement and was interviewed before May 2023. There were 4 interview rounds.
Conducted on Online platform of company
Consisting of aptitude debugging and psuedo codes
Pen and paper round
Consisting of simple output
(1 Question)
- Q1. It tested aptitude the question was a simple matching the columns of a product delivery process
(1 Question)
- Q1. Was both a technical and HRDidn't make it to HR round but it consisted of easy questions only.
Interview Preparation Tips
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SwiftWIN Technologies Software Developer Reviews and Ratings
based on 3 reviews
Rating in categories
|
Software Engineer
39
salaries
|  ₹8 L/yr - ₹13.7 L/yr |
|
Senior Software Engineer
32
salaries
| ₹13.6 L/yr - ₹23.6 L/yr |
|
Test Engineer
16
salaries
| ₹4.2 L/yr - ₹9 L/yr |
|
Software Developer
14
salaries
| ₹4 L/yr - ₹15.8 L/yr |
|
Technical Lead
14
salaries
| ₹14 L/yr - ₹37 L/yr |
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