Quantum Integrators Group Software Developer Interview Questions and Answers

Q1. Explain process for SDE
Ans. 
The process for Software Development Engineer involves planning, designing, coding, testing, and deploying software solutions.
• Gather requirements from stakeholders

• Create a design based on requirements

• Write code to implement the design

• Test the software for bugs and issues

• Deploy the software for users to use

• Iterate on feedback and make improvements
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Online test which consists of java, angular, micro services related questions

Q1. Difference between static and default methods
Ans. 
Static methods belong to the class itself, while default methods are part of an interface in Java.
• Static methods can be called without creating an instance of the class, while default methods are used to provide a default implementation in interfaces.

• Static methods are defined using the 'static' keyword, while default methods are defined using the 'default' keyword in Java.

• Static methods cannot be overridden in subclas...read more
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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...read more
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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
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Q3. SQL query for join of tables
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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
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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 ...read more
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Q5. Overloading vs overriding, practical uses
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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...read more
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Golang testing-related task

Q1. Coding test, DSA
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Q2. Goroutine, Array string manipulation
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Q1. Fundamental questions
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Q1. General HR discussion
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Q1. MCQ on SQL Queries and Core Java
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Q1. Basics of SQL and Java
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JUST BASIC APPTITUDE , IF YOU ARE GOOD WITH BASICS THEN ITS GOOD

YOU SHJOULD KNOW INTERMEDIATE CODING

Q1. JUST BE CONFIDENT AT THAT TIME
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Q2. DIDNT REEBER RIGHT NOW
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Java basic aptitude question in general

Core java oops and thread ,collection

Q1. Java basics and thread
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Q2. Oops, collection,JDBC, spring boot,
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Q1. What are development life cycles
Ans. 
Development life cycles are processes used to plan, design, build, test, and deploy software applications.
• There are several development life cycles, including Waterfall, Agile, and DevOps.

• The Waterfall model is a linear approach where each phase must be completed before moving on to the next.

• Agile methodologies focus on iterative development and continuous feedback.

• DevOps combines development and operations to create a...read more
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Q1. How did you do deployment
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Q1. What's your ctc and ectc
Ans. 
I prefer not to disclose my current or expected salary as it is not relevant to my qualifications and experience.
• I believe that my skills and experience are more important than my current or expected salary

• I am open to discussing compensation that is fair and competitive for the role and my qualifications

• I am more interested in the opportunity to work on challenging projects and grow my skills

• I would like to focus on h...read more
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