Financial Software & Systems System Software Engineer Interview Questions and Answers

Q1. What is dependency injection?
Ans. 
Dependency injection is a design pattern in which components are given their dependencies rather than creating them internally.
• Dependency injection helps in achieving loose coupling between classes.

• It allows for easier testing by providing a way to mock dependencies.

• There are three types of dependency injection: constructor injection, setter injection, and interface injection.
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Q2. Brief description about your current project architecture.
Ans. 
Our current project architecture follows a microservices design pattern with Docker containers for scalability and flexibility.
• Microservices architecture

• Docker containers for scalability

• RESTful APIs for communication

• Kubernetes for orchestration
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Q1. Basic questions were asked, oop, c#, sql
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Q1. Basic questions, scrum and cicd
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Q1. Basic discussion, expected salary
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1 hour Time and Distance , Percentage, odd man out , Area, Problem on Ages.

Q1. Tell me about your self , projects why are you leaving old organization
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Q2. Oops concepts , what is Garbage collection
Ans. 
Garbage collection is an automatic memory management process in which the system frees up memory occupied by objects that are no longer in use.
• Garbage collection is a feature of many programming languages, including Java and C#.

• It helps prevent memory leaks and reduces the burden of manual memory management.

• The garbage collector identifies and releases memory that is no longer referenced by any active objects.

• It works ...read more
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Q3. What is Variable
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A variable is a named storage location in a computer's memory that can hold a value.
• Variables are used to store and manipulate data in a program.

• They have a name, a type, and a value.

• The value of a variable can be changed during program execution.

• Variables can be used to perform calculations, store user input, or hold intermediate results.

• Examples: int age = 25; float temperature = 98.6; string name = 'John';
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Q1. Tell me about Yourself
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Q2. How soon you can join
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Easy medium to hard medium

Questions on array , linked list

Q1. Oops ,dbms,cn,operating system
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Q1. Easy question of hr round
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General Aptitude Test.

Q1. One to one discussion about OOPS, Hibernate, Java.
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Q2. What is one-one mapping.
Ans. 
One-one mapping is a relationship between two sets where each element of one set is associated with exactly one element of the other set.
• Each element in the first set maps to exactly one element in the second set.

• No two elements in the first set map to the same element in the second set.

• Example: Mapping employee IDs to employee names in a database.
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Q3. Explain Inheritance
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Inheritance is a concept in object-oriented programming where a class inherits properties and behaviors from another class.
• Allows a class to inherit attributes and methods from another class

• Promotes code reusability and reduces redundancy

• Creates a parent-child relationship between classes

• Derived class can override or extend the functionality of the base class

• Example: Class 'Car' can inherit from class 'Vehicle' and inh...read more
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Q4. Select 2nd top salary.
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Easy test on 2 ques of coding

Q1. Java and AQL ques
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Q2. Aptitude and DSA
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Q1. Quite lengthy interview with many fresher Java question and logical questions. Overall was good experience.
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Q1. Easy interview with no hard questions
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Q1. Mvc architecture
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Q1. Sql server related queries
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