mPokket Senior Software Engineer Interview Questions and Answers

Q1. What is Interface in C#?
Ans. 
Interface in C# is a reference type that defines a contract for classes to implement certain methods and properties.
• Interfaces contain only method signatures, properties, events, or indexers.

• Classes can implement multiple interfaces but inherit from only one class.

• Interfaces are used to achieve abstraction, multiple inheritance, and polymorphism.

• Example: public interface IShape { void Draw(); }

• Example: public class Cir...read more
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Q2. Contract, Multiple Interfaces, Polymorphism & Abstraction.
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Q1. Salary expectation?
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Q2. Salary discussion
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Q1. Reverse a string
Ans. 
Reverse a string by iterating through the characters and swapping them
• Create a function that takes a string as input

• Initialize two pointers, one at the beginning and one at the end of the string

• Swap the characters at the two pointers and move them towards the center until they meet
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Q2. 2 sum arrays problem
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Q1. Project discussions
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Q2. Cv discussion was held
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Q1. Find median of 2D array
Ans. 
Find median of 2D array of strings
• Flatten the 2D array into a 1D array

• Sort the 1D array

• Calculate the median based on the length of the array
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Q1. LLD of Twitter System
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Basic DSA problems based on Array, String and LinkedList

Q1. About Cloud Services
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Q2. AWS - SNS/SQS/Lambda etc
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Q1. Implement Doubly linked list
Ans. 
Doubly linked list is a data structure where each node contains a reference to the previous and next node.
• Create a Node class with data, prev, and next pointers

• Implement methods to add, remove, and traverse nodes in the list

• Handle edge cases like adding to an empty list or removing the only node
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Q2. Phone book design
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