Siemens Software Engineer Interview Questions, Process, and Tips

Q1. Explain oop concets
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OOP concepts are fundamental principles in object-oriented programming that help in organizing and designing code.
• Encapsulation: Bundling data and methods that operate on the data into a single unit (class).

• Inheritance: Ability of a class to inherit properties and behavior from another class.

• Polymorphism: Ability to present the same interface for different data types.

• Abstraction: Hiding the complex implementation detai...read more
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Q2. Virtual functions
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Q1. Explain vectors and array difference
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Vectors are dynamic arrays that can change in size, while arrays have a fixed size.
• Vectors can grow or shrink in size dynamically, while arrays have a fixed size.

• Vectors can be resized using functions like push_back() and pop_back(), while arrays cannot.

• Vectors are part of the C++ Standard Template Library (STL), while arrays are a fundamental data structure.

• Example: vector vec; int arr[5];
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Q2. Virtual destructors
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Q1. About last project
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Q2. Puzzle with some analytical skills
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Two coding questions

Q1. Basics concepts of c# digging to very depth
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Q2. Design patterns used
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Various design patterns like Singleton, Factory, and Observer are used in my projects.
• Singleton pattern ensures a class has only one instance and provides a global point of access.

• Factory pattern creates objects without specifying the exact class of object that will be created.

• Observer pattern defines a one-to-many dependency between objects so that when one object changes state, all its dependents are notified and upd
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Q1. Exception handling
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Q1. Exception handling
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Q2. Multi-threading
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Q1. Reason for change
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The reason for change can vary based on factors like technology advancements, business needs, user feedback, etc.
• Technology advancements - Updating software to utilize newer technologies for better performance and security.

• Business needs - Changing software to align with new business strategies or goals.

• User feedback - Making changes based on user suggestions or complaints to improve user experience.

• Bug fixes - Address...read more
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Q2. Motivation for change
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I am motivated by the opportunity to learn new technologies and solve complex problems.
• Opportunity to work on cutting-edge technologies

• Challenge of solving complex problems

• Desire for continuous learning and growth
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Q1. Linked list implementation, reversal and traversal.
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Q2. Trees basics and discussion
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Q3. React questions like Life cycle methods and VDOM
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Q4. Deno questions about exes and environment variables configuration.
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Q1. How many zeros are there in the factorial of n?
Ans. 
The number of zeros in the factorial of n depends on the number of factors of 5 in n!
• Count the number of factors of 5 in n! to determine the number of zeros

• For example, in 10! = 10 x 9 x 8 x 7 x 6 x 5 x 4 x 3 x 2 x 1, there is one factor of 5, so there is one zero at the end
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Q1. No interview was there only one round
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Q2. No second round
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