Silicus Technologies Senior Software Development Engineer Interview Questions and Answers

Basic coding questions

Q1. Technical questions on your current project
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Q1. Oops .net framework web api
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Q1. Run time polymorphism code
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Q2. Linked list code
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Q3. Deep copy shallow copy differences
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Deep copy creates a new copy of an object with its own unique memory space, while shallow copy creates a new object that references the same memory locations as the original object.
• Deep copy duplicates all nested objects, while shallow copy only duplicates the references to nested objects.

• Deep copy ensures that changes to the copied object do not affect the original object, while shallow copy may lead to unintended sid...read more
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Q1. More deep questions about polymorphism code
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Q2. Code for interchange of strings without strcpy
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Use a loop to swap characters of two strings without using strcpy function.
• Create two arrays of characters to store the strings

• Use a loop to iterate through each character of the strings and swap them

• Ensure to handle cases where strings have different lengths
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Q1. Complete oops concepts with examples?
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OOP is a programming paradigm based on the concept of objects, which can contain data in the form of fields and code in the form of procedures.
• OOP focuses on creating objects that interact with each other to solve problems.

• Key concepts include encapsulation, inheritance, and polymorphism.

• Encapsulation involves bundling data and methods that operate on the data into a single unit.

• Inheritance allows classes to inherit at...read more
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Q2. Virtual function and virtual Destructor?
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Q3. Multithreading with example?
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Multithreading is the ability of a CPU to execute multiple threads concurrently, allowing for improved performance and responsiveness.
• Multithreading allows multiple tasks to be executed simultaneously on a single CPU core.

• Each thread has its own program counter, stack, and set of registers.

• Example: A web browser using multithreading to load a webpage while simultaneously downloading images in the background.
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Q1. Oops, concepts with examples?
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Q2. Matrix rotate by 180 degrees?
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Rotate a 2D matrix by 180 degrees in place without using extra space.
• Iterate through the matrix and swap elements symmetrically across the center row.

• Use two pointers, one starting from the first row and the other from the last row, to swap elements.

• Repeat the swapping process for each row until the entire matrix is rotated.

• Example: Input matrix = [[1,2,3],[4,5,6],[7,8,9]], Output matrix = [[9,8,7],[6,5,4],[3,2,1]]
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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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