Central Depository Services (I) Software Developer Interview Questions and Answers

Q1. Dotnet , MVC , SQL
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Q1. CTC and other discussion
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Q1. Dependency injection
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Q2. What are oops concepts
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Object-oriented programming concepts that focus on data encapsulation, inheritance, polymorphism, and abstraction.
• 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 details ...read more
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Q1. 
Alien Dictionary Problem Statement
You are provided with a sorted dictionary (by lexical order) in an alien language. Your task is to determine the character order of the alien language from this dictiona...read more
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Determine the character order of an alien language from a sorted dictionary of words.
• Graph Representation: Treat each character as a node and establish directed edges based on the order derived from adjacent words.

• Topological Sorting: Use topological sorting to determine the order of characters, ensuring that for every directed edge from character A to B, A comes before B.

• Example: For words ['caa', 'aaa', 'aab'], the o...read more
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Q2. 
The Skyline Problem
Compute the skyline of given rectangular buildings in a 2D city, eliminating hidden lines and forming the outer contour of the silhouette when viewed from a distance. Each building is ...read more
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The Skyline Problem involves computing the outer contour of buildings in a 2D cityscape based on their coordinates and heights.
• Input Format: Each building is represented as [LEFT_i, RIGHT_i, HEIGHT_i], indicating its position and height.

• Output Format: The skyline is represented as a list of key points, e.g., [[x1, y1], [x2, y2], ...], marking the silhouette.

• Example: For buildings [[2, 9, 10], [3, 7, 15]], the output is...read more
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Q3. 
Reverse Words In A String Problem Statement
Given a string of length N, reverse the string word by word. Ensure that the output reversed string has a single space between two words and does not contain le...read more
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Reverse the words in a string while ensuring single spaces and no leading or trailing spaces.
• Input Handling: Read multiple test cases, each containing a string to be reversed word by word.

• Trimming Spaces: Use string manipulation to remove leading and trailing spaces before processing.

• Splitting Words: Split the string into words based on spaces, ensuring to handle multiple spaces correctly.

• Reversing Words: Reverse the o...read more
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Q4. 
Flood Fill Algorithm Task
Assist Ninja in altering the color of a specific region in his photo. Given the image as a 2D array where each pixel is a positive integer, update the color of a specified pixel ...read more
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The Flood Fill Algorithm updates the color of a pixel and its adjacent same-colored pixels in a 2D image array.
• Input Parameters: The function takes the image dimensions (M, N), the image matrix, starting coordinates (X, Y), and the new color (C).

• Color Change: The algorithm changes the color of the pixel at (X, Y) and all adjacent pixels with the same original color to the new color C.

• Depth-First Search (DFS) or Breadth...read more
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First round was an API challenge in which we need to submit our names Reg No. and other details by using an API provided by the company .

Then the second round was coding round in which there were 19 coding multiple choice questions and 2 coding questions based on the profile we applied for . It was 1 hour and 15 mins long test

Q1. The interviewer asked me to intruduce myself and explain the projects on my profile . Then he asked me to few basic questions about Javascript and few coding questions and asked me write psuedo code for th...read more
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Q1. Hr Asked me to intruduce myself and asked me to tell 5 things that arent on my resume , Then she further asked me if i am willing to relocate .She asked me if i am okay with working on diffrent domains if...read more
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