Trading Technologies Software Engineer Interview Questions and Answers

Q1. Asked about technical expertise and topic related question
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Q2. Notice period and salary discussion
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Q1. Technical in depth
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Q2. Salary discussion
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Q1. Notice period and salary discussion
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Q1. What is 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 allows a child class to override a method from its parent class, exhibiting polymorphic b
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Q2. How abstraction is implemented?
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Abstraction is implemented in software engineering by hiding unnecessary details and exposing only relevant information.
• Abstraction is achieved through the use of abstract classes and interfaces in object-oriented programming.

• It allows developers to focus on the essential aspects of a concept without getting bogged down in implementation details.

• For example, in a car simulation program, the Car class may have abstract ...read more
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Q3. What is the difference between abstraction and Interface?
Ans. 
Abstraction is hiding the implementation details while Interface is a contract that defines the methods that a class must implement.
• Abstraction focuses on hiding the internal implementation details of a class, allowing the user to only see the necessary details.

• Interface defines a contract that specifies the methods a class must implement, without providing the implementation details.

• Abstraction can be achieved through...read more
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Q1. What is your motivation when you are working on same project alone for long period?
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My motivation when working on a project alone for a long period is the satisfaction of seeing my hard work come to fruition.
• Setting small achievable goals to keep myself motivated

• Taking breaks to avoid burnout and maintain productivity

• Seeking feedback from others to stay motivated and improve my work

• Reminding myself of the end goal and the impact my project will have
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Q1. What is your salary expectation?
Ans. 
My salary expectation is based on my experience, skills, and the market rate for Software Engineers in this region.
• Research the average salary range for Software Engineers in the specific region or industry

• Consider your level of experience, skills, and qualifications when determining your salary expectation

• Be prepared to negotiate based on the company's offer and benefits package
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Basic MCQs on General aptitude, logical reasoning and programming questions

Q1. What is a constructor in C++?
Ans. 
A constructor in C++ is a special member function that is automatically called when an object is created.
• Constructors have the same name as the class and do not have a return type.

• They can be used to initialize the object's data members.

• Default constructors are automatically generated if no constructor is defined.

• Parameterized constructors can be defined to accept arguments during object creation.
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Q2. What is copy assignment operator?
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Copy assignment operator is a special member function in C++ that allows one object to be assigned the values of another object of the same class.
• Copy assignment operator is denoted by the = operator.

• It is used to copy the values of one object into another object of the same class.

• It is automatically generated by the compiler if not explicitly defined.

• Example: MyClass obj1; MyClass obj2; obj2 = obj1; // Copy assignment
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Q3. What is virtualization in C++?
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Virtualization in C++ is the process of creating a virtual version of a class or function to allow for polymorphism and dynamic binding.
• Virtualization in C++ is achieved through the use of virtual functions and inheritance.

• Virtual functions are declared in a base class and overridden in derived classes to provide different implementations.

• Virtualization allows for polymorphism, where a pointer to a base class can point...read more
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Q4. Implement String class
Ans. 
Implement a custom String class in a programming language.
• Define a class with necessary properties and methods to manipulate strings.

• Include methods for concatenation, substring, length, etc.

• Handle memory allocation and deallocation properly.

• Example: class MyString { // implementation }
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Q5. What is smart pointers?
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Smart pointers are objects that act like pointers but provide automatic memory management.
• Smart pointers help prevent memory leaks by automatically deallocating memory when no longer needed.

• Examples include unique_ptr, shared_ptr, and weak_ptr in C++.

• They provide better memory safety compared to raw pointers.
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30 questions combination of Logical, numeric, verbal and 2 coding questions.

Q1. Self Introduction
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Q2. Questions on core Java concepts
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Q1. Tell me about yourself
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I am a passionate software engineer with experience in developing web applications and a strong background in computer science.
• Experienced in developing web applications using technologies such as HTML, CSS, JavaScript, and React

• Strong background in computer science with knowledge of data structures and algorithms

• Proficient in programming languages such as Java, Python, and C++

• Familiar with Agile development methodolog
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Q2. Your strength and weakness
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Strength: Problem-solving skills. Weakness: Overthinking.
• Strength: I have strong problem-solving skills which help me in finding efficient solutions to complex issues.

• Weakness: Sometimes I tend to overthink situations, which can lead to unnecessary stress and delays in decision-making.
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Three coding question

Two technical questions based on strings and linked lists.

Q1. What is data base management system
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Q1. What is your salary expectations
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Hacker rank, 3 questions with 1 hour duration

Q1. Stack parenthesis matching
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Q2. Linked List reversal
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Q1. Operating System basics
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Q2. Behavorial questions
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Q3. Networking Basics
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